CN118427907A - Digital twinning-based multi-curved-surface special-shaped film structure installation method and device - Google Patents
Digital twinning-based multi-curved-surface special-shaped film structure installation method and device Download PDFInfo
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Abstract
The application relates to the technical field of data processing, and discloses a method and a device for installing a multi-curved-surface special-shaped film structure based on digital twinning. The method comprises the following steps: constructing a digital twin model of the target membrane structure to obtain a target three-dimensional twin model; extracting operation points of the target three-dimensional twin model to obtain a plurality of operation points of the target three-dimensional twin model; respectively carrying out simulated stress analysis on a plurality of operation points of the target three-dimensional twin model to obtain stress data of each operation point; planning a hoisting path of the target three-dimensional twin model to obtain a target hoisting path; based on the target hoisting path and stress data of each operation point, performing simulation structure installation on the target three-dimensional twin model to obtain simulation installation data; the structure installation strategy of the target film structure is constructed based on the simulated installation data, and the efficiency and the safety of the installation of the multi-curved-surface special-shaped film structure based on digital twin are improved.
Description
Technical Field
The application relates to the field of data processing, in particular to a method, a device, equipment and a storage medium for installing a multi-curved-surface special-shaped film structure based on digital twinning.
Background
In the current construction practice, the multi-curved-surface special-shaped film structure is widely applied to large public buildings such as stadiums, exhibition centers, transportation hubs and the like due to the unique aesthetic value and good mechanical properties. The traditional membrane structure installation method mainly relies on experience design and on-site adjustment, and hoisting and fixing are performed through manual operation and simple mechanical equipment. When the method is used for processing complex multi-curved surface special-shaped structures, a large amount of trial and error and adjustment are often required, so that the installation efficiency is low, the installation precision is difficult to ensure, and the problems are more remarkable especially in non-conventional operation environments such as places with narrow space and incapability of using large mechanical equipment.
However, the prior art has obvious disadvantages in efficiently and accurately installing multi-curved surface special-shaped film structures. On one hand, the lack of effective prediction and planning tools makes it difficult to accurately evaluate the stress conditions and installation risks of various working points before installation; on the other hand, due to the lack of a highly integrated design and construction scheme, automation and intellectualization of the installation process cannot be realized, so that the installation process is long in time consumption, high in cost and high in risk, and the problems are more remarkable particularly in complex or limited operation environments.
Disclosure of Invention
The application provides a method, a device, equipment and a storage medium for installing a multi-curved-surface special-shaped film structure based on digital twinning, which are used for improving the efficiency and the safety of installing the multi-curved-surface special-shaped film structure based on digital twinning.
In a first aspect, the present application provides a method for installing a multi-curved surface special-shaped film structure based on digital twin, the method for installing a multi-curved surface special-shaped film structure based on digital twin includes: constructing a digital twin model of the target membrane structure to obtain a target three-dimensional twin model;
extracting operation points of the target three-dimensional twin model to obtain a plurality of operation points of the target three-dimensional twin model;
respectively carrying out simulated stress analysis on a plurality of operation points of the target three-dimensional twin model to obtain stress data of each operation point;
Carrying out hoisting path planning on the target three-dimensional twin model based on stress data of each operation point to obtain a target hoisting path;
Based on the target hoisting path and stress data of each operation point, performing simulation structure installation on the target three-dimensional twin model to obtain simulation installation data;
and constructing a structure installation strategy of the target membrane structure based on the simulated installation data.
With reference to the first aspect, in a first implementation manner of the first aspect of the present application, the performing digital twin model construction on the target film structure to obtain a target three-dimensional twin model includes:
obtaining a design drawing of the target film structure, and extracting the structural shape of the target film structure from the design drawing;
Based on the structure shape, carrying out tension distribution analysis on the target film structure to obtain tension distribution data of the target film structure;
Constructing an initial three-dimensional model based on the tension distribution data and the structural shape;
performing surface stitching continuity verification on the initial three-dimensional model, and performing material attribute assignment on the initial three-dimensional model when verification passes to obtain a first three-dimensional model;
performing environmental parameter assignment on the first three-dimensional model to obtain a second three-dimensional model;
and carrying out stress parameter assignment on the second three-dimensional model to obtain the target three-dimensional twin model.
With reference to the first aspect, in a second implementation manner of the first aspect of the present application, the performing a stress parameter assignment on the second three-dimensional model to obtain the target three-dimensional twin model includes:
Carrying out loading condition matching on the second three-dimensional model to obtain a loading condition data set, wherein the loading condition data set comprises: dead weight, snow load and wind load;
Performing model parameter adjustment on the second three-dimensional model through the loading condition data set to obtain a third three-dimensional model;
carrying out non-uniform stress area identification on the third three-dimensional model to obtain a plurality of non-uniform stress areas;
Calibrating the load conversion coefficient of each non-uniform stress area to obtain the load conversion coefficient of each non-uniform stress area;
Carrying out load parameter configuration on the third three-dimensional model based on the load conversion coefficient of each non-uniform stress area to obtain a fourth three-dimensional model;
setting a boundary condition parameter set of the fourth three-dimensional model to obtain the target three-dimensional twin model, wherein the boundary condition parameter set comprises: fixed point set, sliding point set, and installation constraints. With reference to the first aspect, in a third implementation manner of the first aspect of the present application, the performing operation point extraction on the target three-dimensional twin model to obtain a plurality of operation points of the target three-dimensional twin model includes:
performing obstacle extraction on the installation environment of the target three-dimensional twin model to obtain obstacle parameter information;
performing environment sensitive area identification on the installation environment to obtain sensitive area information, wherein the sensitive area information comprises: ground pothole areas and abrupt terrain areas;
carrying out dynamic change area identification on the installation environment to obtain dynamic change area information;
Screening out an operation risk position point set of the installation environment based on the obstacle parameter information, the sensitive area information and the dynamic change area information;
and carrying out operation point analysis on the target three-dimensional twin model through the operation risk position point set to obtain a plurality of operation points of the target three-dimensional twin model.
With reference to the first aspect, in a fourth implementation manner of the first aspect of the present application, the performing a simulated stress analysis on a plurality of working points of the target three-dimensional twin model to obtain stress data of each working point includes:
Respectively constructing simulated load data of a plurality of operation points of the target three-dimensional twin model to obtain simulated load data of each operation point;
carrying out severe environment parameter matching on the target three-dimensional twin model to obtain a severe environment parameter set;
based on the severe environment parameter set, respectively carrying out simulated stress analysis on a plurality of operation points of the target three-dimensional twin model through simulated load data of each operation point to obtain first stress data of each operation point;
Carrying out standard environment parameter matching on the target three-dimensional twin model to obtain a standard environment parameter set;
based on the standard environment parameter set, respectively carrying out simulated stress analysis on a plurality of operation points of the target three-dimensional twin model through simulated load data of each operation point to obtain second stress data of each operation point;
and respectively carrying out data fusion on the first stress data of each operation point and the second stress data of each operation point to obtain the stress data of each operation point.
With reference to the first aspect, in a fifth implementation manner of the first aspect of the present application, the performing a hoisting path planning on the target three-dimensional twin model based on stress data of each operation point to obtain a target hoisting path includes:
Extracting a key index set of each operation point based on stress data of each operation point, wherein the key index set comprises: stress, strain, and displacement data;
screening the operation points through the key index set of each operation point to obtain at least two target operation points;
Screening hoisting points of at least two target operation points to obtain at least one hoisting point;
and planning a hoisting path of the target three-dimensional twin model based on at least one hoisting point to obtain a target hoisting path.
With reference to the first aspect, in a sixth implementation manner of the first aspect of the present application, the constructing a structure installation policy of the target film structure based on the simulated installation data includes:
Identifying installation risk data and installation state data by the simulated installation data;
Carrying out path correction on the target hoisting path based on the installation state data to obtain a corrected hoisting path;
extracting risk hoisting parameters from the installation risk data to obtain risk hoisting parameters;
carrying out path correction on the corrected hoisting path based on the risk hoisting parameters to obtain a film structure installation path;
and generating a structure installation strategy of the target film structure based on the film structure installation path.
In a second aspect, the present application provides a digital twin-based multi-curved surface special-shaped film structure installation device, which includes:
the construction module is used for constructing a digital twin model of the target membrane structure to obtain a target three-dimensional twin model;
The extraction module is used for extracting the operation points of the target three-dimensional twin model to obtain a plurality of operation points of the target three-dimensional twin model;
The analysis module is used for respectively carrying out simulated stress analysis on a plurality of operation points of the target three-dimensional twin model to obtain stress data of each operation point;
the planning module is used for planning a hoisting path of the target three-dimensional twin model based on the stress data of each operation point to obtain a target hoisting path;
the installation module is used for carrying out simulation structure installation on the target three-dimensional twin model based on the target hoisting path and stress data of each operation point to obtain simulation installation data;
And the construction module is used for constructing a structure installation strategy of the target film structure based on the simulated installation data.
The third aspect of the application provides a multi-curved surface special-shaped film structure installation device based on digital twinning, which comprises: a memory and at least one processor, the memory having instructions stored therein; the at least one processor invokes the instructions in the memory to cause the digital twinning-based multi-curved surface special-shaped film structure installation apparatus to execute the digital twinning-based multi-curved surface special-shaped film structure installation method described above.
A fourth aspect of the present application provides a computer-readable storage medium having instructions stored therein that, when run on a computer, cause the computer to perform the above-described digital twinning-based multi-curved surface profiled film structure installation method.
According to the technical scheme provided by the application, the physical behavior and the stress condition of the membrane structure can be accurately simulated in the virtual environment by constructing the three-dimensional digital twin model of the target membrane structure, so that the design accuracy is improved, the engineering team can predict potential problems and risk points before actual installation, and the predictability and the planning performance of the installation process are greatly improved. By carrying out simulated stress analysis on each working point, an engineering team can formulate an optimal operation strategy aiming at the specific situation of each point, and the targeted strategy is difficult to realize in the traditional method, so that potential safety hazards in the process can be effectively avoided, and the accuracy and quality of structure installation can be ensured. Furthermore, the hoisting path planning based on the stress data ensures the maximum safety and efficiency of the hoisting process, and particularly in a complex or restrictive working environment, the pre-planned path can effectively avoid obstacles, reduce on-site adjustment and trial and error and greatly improve the installation efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained based on these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a method for installing a multi-curved surface special-shaped film structure based on digital twinning in an embodiment of the application;
Fig. 2 is a schematic diagram of an embodiment of a device for installing a multi-curved surface special-shaped film structure based on digital twinning in an embodiment of the application.
Detailed Description
The embodiment of the application provides a method, a device, equipment and a storage medium for installing a multi-curved-surface special-shaped film structure based on digital twinning. The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
For ease of understanding, a specific flow of an embodiment of the present application is described below, referring to fig. 1, and an embodiment of a method for installing a multi-curved shaped film structure based on digital twin in the embodiment of the present application includes:
S101, constructing a digital twin model of a target membrane structure to obtain a target three-dimensional twin model;
it can be understood that the execution body of the application can be a multi-curved surface special-shaped film structure installation device based on digital twinning, and can also be a terminal or a server, and the implementation body is not limited in the specific description. The embodiment of the application is described by taking a server as an execution main body as an example.
Specifically, a design drawing of a target film structure is obtained. The design drawing contains structural shape and size information of the membrane structure, and the structural shape data of the membrane is extracted from the structural shape and size information through drawing analysis software. Based on the extracted structural shape data, the structural engineering analysis software is used for carrying out tension distribution analysis on the target film structure, simulating the tension condition of the film structure under the actual condition, predicting the tension distribution at different positions, and ensuring the rationality and safety of the design. An initial three-dimensional model is constructed based on the tension distribution data and the structure shape. The model is mainly used for digitally expressing the geometric form of the membrane structure in the initial stage. And (3) carrying out curved surface splicing continuity verification on the initial three-dimensional model, so as to ensure that each curved surface part can be spliced seamlessly and form a continuous and uniform structure. After verification, carrying out material attribute assignment on the model, such as elastic modulus, tear resistance and the like of the material, so as to obtain a first three-dimensional model. And carrying out environmental parameter assignment on the first three-dimensional model, such as temperature, humidity, wind speed and the like, which are important external factors influencing the performance of the membrane structure, wherein the obtained second three-dimensional model can show near-real reaction in a simulation environment. And carrying out stress parameter assignment on the second three-dimensional model, wherein the assignment comprises expected load, strength distribution of supporting points and the like, so as to obtain the target three-dimensional twin model. The model expresses the physical and mechanical properties of the membrane structure, combines environmental influence factors, and provides prediction and strategy planning basis for the actual installation process.
And matching the loading conditions of the second three-dimensional model, wherein the matching comprises the steps of identifying and recording various actual loading conditions which need to be considered by the model, such as dead weight, snow load, wind load and the like. The loading condition data set is calculated by meteorological data of an actual site and physical properties of building materials, so that the actual applicability and accuracy of model analysis are ensured. And carrying out model parameter adjustment on the second three-dimensional model through the loading condition data set so as to reflect the possible influence of the loading condition on the structure, so that the model is more close to the response under the actual operation condition, and a third three-dimensional model is obtained. And carrying out non-uniform stress area identification on the third three-dimensional model. And identifying key areas with uneven stress by analyzing stress distribution diagrams of the model under various loading conditions. And calibrating the load conversion coefficient of each identified nonuniform stress area, calculating the stress response and bearing capacity of each area under a specific loading condition, and distributing a specific load conversion coefficient for each area. And carrying out load parameter configuration on the third three-dimensional model based on the load conversion coefficient of each non-uniform stress area to obtain a fourth three-dimensional model. In the model, the load of each area is optimally configured according to the actual stress condition, so that the stability and the safety of the whole structure of the model are ensured. And setting a boundary condition parameter set of the fourth three-dimensional model, wherein the boundary condition parameter set comprises a fixed point set, a sliding point set and an installation constraint condition. The boundary conditions are set for simulating the limit and the limiting conditions of the membrane structure in the actual installation and use processes, so that the model can normally work in the designed range, and finally the target three-dimensional twin model is obtained, the actual physical and mechanical characteristics of the structure are reflected, and comprehensive consideration of environmental influence is also included.
Step S102, extracting operation points of the target three-dimensional twin model to obtain a plurality of operation points of the target three-dimensional twin model;
Specifically, the obstacle parameter information is extracted from the installation environment of the target three-dimensional twin model by comprehensive scanning and analysis, and the obstacle parameter information comprises surrounding buildings, natural environment characteristics and any physical obstacle which can influence the installation operation. The specific effect of the obstacles on the construction is evaluated according to the detailed data of the obstacles, such as the position, the volume, the material and the like. And carrying out environment sensitive area identification on the installation environment to obtain sensitive area information, wherein the sensitive area information comprises areas with complex terrain or geological conditions, such as ground pothole areas and abrupt terrain areas. The identification of the sensitive area facilitates planning a safe working path and selecting an appropriate working point. Identifying dynamically changing areas in the installation environment, such as those areas that are constantly changing due to seasonal changes, rainfall, or other environmental factors, helps the system predict the likely environmental changes, and avoids possible delays and risks during the actual installation process. And screening out an operation risk position point set of the installation environment based on the obstacle parameter information, the sensitive area information and the dynamic change area information. This point set is a set of areas that are identified to be of particular concern after all potential risk factors are considered, which areas may require special skill or tools to handle during installation. And carrying out operation point analysis on the target three-dimensional twin model through the operation risk position point set. The most suitable and safest job points are determined from the overall installation environment, and the selection of these job points is based on the response of the model to the actual environment and the management strategy of the various problems that may be encountered in anticipation.
Step S103, respectively carrying out simulated stress analysis on a plurality of operation points of the target three-dimensional twin model to obtain stress data of each operation point;
Specifically, simulated load data is constructed for a plurality of operation points of the target three-dimensional twin model respectively, which includes factors such as the dead weight of the structure, the maximum load in expected use, and the accidental load possibly suffered. And (3) carrying out severe environment parameter matching on the model, and collecting and integrating data of severe environment factors such as extreme weather conditions, geological anomalies and the like which possibly affect structural safety. Based on the severe environment parameter set, carrying out simulated stress analysis on each working point of the target three-dimensional twin model through simulated load data of each working point by using engineering analysis software, generating first stress data, and reflecting the maximum stress and deformation possibly experienced by each working point under extreme conditions. And (3) carrying out standard environmental parameter matching on the target three-dimensional twin model, and taking environmental factors which are possibly encountered by the structure under the conventional use condition, such as normal climate conditions, daily use loads and the like, into consideration to obtain a standard environmental parameter set. And based on the standard environment parameter set, carrying out simulated stress analysis on each operation point of the model through the simulated load data of each operation point to obtain second stress data. These data help understand and predict the performance of the structure under normal operating conditions, ensuring its design suitability and long-term stability. The first stress data and the second stress data of each operation point are subjected to data fusion, so that the analysis accuracy is improved, the system is allowed to foresee possible expression of the structure under different environmental conditions, the stress data of each operation point are obtained, and the safety of the installation process and the long-term operation efficiency of the structure are ensured.
Step S104, carrying out hoisting path planning on the target three-dimensional twin model based on stress data of each operation point to obtain a target hoisting path;
And extracting key index sets of each operation point based on stress data of each operation point, wherein the key index sets comprise stress, strain and displacement data. These data are the basis for evaluating the performance of the structure under actual loading and operating conditions, helping to determine which job points may experience problems during installation. And screening the plurality of operation points by analyzing the key index set of each operation point to determine at least two target operation points. The screening process focuses on identifying those points where key performance indicators such as stress and displacement are most critical, as the stability of these points during lifting and installation is more important to the safety of the overall structure. The selection of the target operating point is not only based on the extreme value of a single index, but also considers the interaction between the operating points and the stress balance of the whole structure. And screening hoisting points for at least two target operation points. And (3) carrying out mechanical analysis on the selected operation points to ensure that the selected hoisting points can bear expected loads, and simultaneously maintaining the overall stability and safety of the structure in the hoisting process. The hoisting point is selected taking into account the capacity of the hoisting device and the feasibility of operation, including accessibility to space, expected hoisting angle and distance, etc. And planning a hoisting path of the target three-dimensional twin model based on at least one determined hoisting point. A path is designed from the starting position to the final installation position that takes into account various physical and operational constraints, such as avoidance of obstacles, minimization of path length, optimization of hoist angles and sequences, etc. The goal of path planning is to ensure the whole hoisting process to be smooth, efficient and safe, and simultaneously minimize the stress and potential damage to the structure.
Step 105, performing simulated structure installation on the target three-dimensional twin model based on the target hoisting path and stress data of each operation point to obtain simulated installation data;
The force data is integrated into a three-dimensional twin model. These data include stress, strain and displacement at various loads and environmental conditions for each critical operating point, which are critical to ensuring structural safety and integrity during the simulated installation. The integrated data is applied to simulation software, and a professional structural analysis and simulation tool, such as finite element analysis software, is used for simulation installation. The hoisting process is reappeared in the virtual environment through the software, and the operation of each step is ensured to be carried out according to the actual engineering conditions. During the simulation, attention is paid to each step of the simulated hoisting path, including the position of the hoisting point, the operation of the hoisting device and any obstacles that may be encountered in the path. Meanwhile, the dynamic response of the hoisting equipment, such as the moving speed and acceleration of the crane and the tension change of the sling, are considered in the simulation. These dynamic factors have an important influence on the performance of the structure during the hoisting process. By accurately controlling and monitoring the variables, the behavior of the structure in the installation process is predicted and optimized, and the installation risk is reduced. The process of simulating the installation of the structure provides information about the behavior of the structure during lifting and installation and allows the system to pre-identify possible problem areas and make necessary adjustments. For example, if the simulation shows that the stress of certain working points exceeds a safety limit during hoisting, the hoisting path can be re-planned or the hoisting strategy can be adjusted to ensure the safety of the structure. Finally, simulated installation data is obtained by simulation, including stress and displacement data of the structure during installation, as well as high risk areas that may require special attention.
And S106, constructing a structure installation strategy of the target membrane structure based on the simulated installation data.
Specifically, installation risk data and installation state data which may exist are identified by simulating the installation data. The simulated installation data provides a variety of conditions that the membrane structure may encounter during installation, including the behavior of the structure under specific loads and environmental conditions. And carrying out path correction on the target hoisting path based on the installation state data to obtain a corrected hoisting path. The installation status data reflects the actual performance of the membrane structure during the simulated installation process, including any deviations due to improper equipment operation, environmental factors, or structural response. Based on the information, path correction is carried out, and a hoisting path is optimized, so that the influence of the deviation is reduced, and the smooth hoisting operation is ensured. And analyzing the installation risk data, and extracting key risk hoisting parameters. These parameters include the specific location of the risk zone, the specific environmental conditions that may lead to structural stability being affected, the operating variables that require special control, and the like. And optimizing and correcting the corrected hoisting path based on the risk hoisting parameters, so that the specific risk possibly encountered in the installation process is further reduced or eliminated, and each hoisting step is ensured to be carried out in a controllable range. And generating a structure installation strategy of the target membrane structure based on the membrane structure installation path. The strategy includes detailed steps of lifting and installation, as well as precautions, safety checks and quality control procedures.
In the embodiment of the application, by constructing the three-dimensional digital twin model of the target membrane structure, the scheme can accurately simulate the physical behavior and stress condition of the membrane structure in a virtual environment, thereby not only improving the accuracy of design, but also enabling an engineering team to foresee potential problems and risk points before actual installation and greatly improving the predictability and planning of the installation process. By carrying out simulated stress analysis on each working point, an engineering team can formulate an optimal operation strategy aiming at the specific situation of each point, and the targeted strategy is difficult to realize in the traditional method, so that potential safety hazards in the process can be effectively avoided, and the accuracy and quality of structure installation can be ensured. Furthermore, the hoisting path planning based on the stress data ensures the maximum safety and efficiency of the hoisting process, and particularly in a complex or restrictive working environment, the pre-planned path can effectively avoid obstacles, reduce on-site adjustment and trial and error and greatly improve the installation efficiency.
In a specific embodiment, the process of executing step S101 may specifically include the following steps:
(1) Obtaining a design drawing of a target film structure, and extracting the structural shape of the target film structure from the design drawing;
(2) Based on the structure shape, carrying out tension distribution analysis on the target film structure to obtain tension distribution data of the target film structure;
(3) Constructing an initial three-dimensional model based on the tension distribution data and the structure shape;
(4) Performing surface splicing continuity verification on the initial three-dimensional model, and performing material attribute assignment on the initial three-dimensional model when the verification passes to obtain a first three-dimensional model;
(5) Performing environmental parameter assignment on the first three-dimensional model to obtain a second three-dimensional model;
(6) And carrying out stress parameter assignment on the second three-dimensional model to obtain the target three-dimensional twin model.
Specifically, a design drawing of a target film structure is obtained. The design drawing contains information about the detailed size, shape and possible support point locations of the structure. The structural shape of the target film structure is extracted from the design drawing. The basic shape representation of the three-dimensional model is converted from a two-dimensional plan view using CAD software or other engineering graphics processing software. And carrying out tension distribution analysis on the target membrane structure based on the structure shape, and predicting the stress state of the membrane structure in the actual installation and use process. The effect of different load conditions (such as wind load, snow load, dead weight, etc.) on the membrane structure was simulated using structural analysis software such as ANSYS or SAP2000 to obtain tension data for the membrane at various points. And constructing an initial three-dimensional model based on the tension distribution data and the structure shape to obtain a three-dimensional digital representation of the membrane structure. The construction of an initial three-dimensional model is typically performed using specialized modeling software that is capable of handling complex geometric shapes and stress conditions to bring the model closer to an actual structure. And carrying out surface splicing continuity verification on the initial three-dimensional model. And (3) checking whether each curved surface in the model can be spliced seamlessly, so that the integrity and the functionality of the structure are ensured. After verification, carrying out material attribute assignment on the initial three-dimensional model, such as elastic modulus, tearing strength, weather resistance and the like of the film material, so as to obtain a first three-dimensional model. And carrying out environmental parameter assignment on the first three-dimensional model. These parameters, including ambient temperature, humidity, wind speed, etc., are key factors in simulating the performance of the membrane structure under real world conditions. In this way, the first three-dimensional model is converted into the second three-dimensional model after the assignment of the environmental parameters, and a near-real reaction can be shown in the simulation environment. And carrying out assignment on the stress parameters of the second three-dimensional model to obtain the target three-dimensional twin model. The assignment includes the maximum load that the structure may encounter in actual use, the specific supporting point force configuration, etc., and the setting of the stress parameters is based on the tension distribution data and environmental parameters obtained by the previous analysis.
In a specific embodiment, the process of performing the step of assigning stress parameters to the second three-dimensional model may specifically include the following steps:
(1) Carrying out loading condition matching on the second three-dimensional model to obtain a loading condition data set, wherein the loading condition data set comprises: dead weight, snow load and wind load;
(2) Carrying out model parameter adjustment on the second three-dimensional model through loading the condition data set to obtain a third three-dimensional model;
(3) Carrying out non-uniform stress area identification on the third three-dimensional model to obtain a plurality of non-uniform stress areas;
(4) Calibrating the load conversion coefficient of each non-uniform stress area to obtain the load conversion coefficient of each non-uniform stress area;
(5) Carrying out load parameter configuration on the third three-dimensional model based on the load conversion coefficient of each non-uniform stress area to obtain a fourth three-dimensional model;
(6) Setting a boundary condition parameter set of the fourth three-dimensional model to obtain a target three-dimensional twin model, wherein the boundary condition parameter set comprises: fixed point set, sliding point set, and installation constraints.
Specifically, the loading condition matching is performed on the second three-dimensional model, so that the model can accurately reflect the influence of various external forces in the actual environment. The loading conditions generally include the weight of the structure itself (dead weight), the extra load imposed by snowfall (snow load) and the influence of wind (wind load). The construction of the loading condition dataset is based on historical meteorological data, geographical location, building standards and the like. For example, in designing a large stadium membrane structure in a cold region, the calculation of the snowload needs to take into account the extreme snowfall; in areas with high wind power, such as coastal or plain areas, the influence of wind load needs to be particularly focused. And after the parameters of the second three-dimensional model are adjusted through the data, a third three-dimensional model is obtained, and various loading conditions possibly encountered in an actual environment are considered by the model, so that the practicality and the safety of the design are ensured. And carrying out non-uniform stress area identification on the third three-dimensional model. By analyzing the stress distribution of the model after being subjected to various external loads, areas with concentrated stress or potential fatigue are identified. For example, certain joints or corners in the model may become stress concentration areas due to structural design or the particularities of the load transfer means. After the non-uniform stress areas are identified, calibrating the load conversion coefficient of each area. The load conversion coefficient is a key parameter for adjusting and optimizing the load application in a specific area, and ensuring the uniformity and stability of the whole structure under stress. The load transfer factor for each region is calculated based on factors such as the material properties, geometry, and connection details of the region, so that the overall structure exhibits optimal performance in the face of actual operating conditions. And carrying out load parameter configuration on the third three-dimensional model by using the load conversion coefficient to obtain a fourth three-dimensional model. The model not only reflects the specific requirements of each region, but also ensures more reasonable and balanced stress distribution of the whole structure through load adjustment. And setting a boundary condition parameter set of the fourth three-dimensional model, wherein the boundary condition parameter set comprises a fixed point set, a sliding point set and an installation constraint condition. The set of fixed points relates to the points where the structure connects to the ground or other structure, which points are typically arranged immovably or deformed in the model to simulate a real fixed connection. The set of sliding points then allows some degree of movement or deformation, typically used to simulate flexible connections or portions of a structure that are subjected to periodic loads. The installation constraint defines various technical and safety specifications that must be observed during the installation process, ensuring that the installation process proceeds smoothly.
In a specific embodiment, the process of executing step S102 may specifically include the following steps:
(1) Performing obstacle extraction on the installation environment of the target three-dimensional twin model to obtain obstacle parameter information;
(2) Carrying out environment sensitive area identification on the installation environment to obtain sensitive area information, wherein the sensitive area information comprises: ground pothole areas and abrupt terrain areas;
(3) Carrying out dynamic change area identification on the installation environment to obtain dynamic change area information;
(4) Screening out an operation risk position point set of the installation environment based on the obstacle parameter information, the sensitive area information and the dynamic change area information;
(5) And carrying out operation point analysis on the target three-dimensional twin model through the operation risk position point set to obtain a plurality of operation points of the target three-dimensional twin model.
Specifically, the obstacle extraction is carried out on the installation environment of the target three-dimensional twin model, and the obstacle parameter information is obtained. Obstacle parameter information includes the location, height, and volume of surrounding buildings, as well as other objects that may affect the installation operation, such as wires, trees, or other fixtures. Such information is obtained through field surveys, aerial photogrammetry using drones, or through Geographic Information System (GIS) data. And carrying out environment sensitive area identification on the installation environment, wherein the environment sensitive area identification comprises a ground pothole area and a landform steep area. These sensitive areas may have an impact on the installation work, for example, ground potholes may cause stability problems for transportation and lifting equipment, while steep terrain may limit access and operation of the equipment. The location and characteristics of these sensitive areas are calibrated by terrain analysis software or field surveys. And carrying out dynamic change area identification on the installation environment to obtain dynamic change area information, wherein the dynamic change area information comprises areas affected by the quaternary water level change, the conventional construction activities or other temporary activities. And screening out an operation risk position point set in the installation environment according to the obstacle parameters, the sensitive area information and the dynamic change area information. And carrying out operation point analysis on the target three-dimensional twin model by using the risk position point set, and determining the optimal operation point position from the model. The accessibility of the operation points, the stress conditions and the relative positions of the operation points and other operation points are considered in analysis, so that the highest safety standard can be ensured at each selected point, and the high efficiency of construction is realized. For example, in designing a large bridge project spanning different terrains, the selection of the working points needs to take into account not only the geographic and environmental characteristics of each point, but also the stress distribution and construction sequence of the overall structure.
In a specific embodiment, the process of executing step S103 may specifically include the following steps:
(1) Respectively constructing simulated load data of a plurality of operation points of the target three-dimensional twin model to obtain simulated load data of each operation point;
(2) Carrying out severe environment parameter matching on the target three-dimensional twin model to obtain a severe environment parameter set;
(3) Based on a severe environment parameter set, respectively carrying out simulated stress analysis on a plurality of operation points of the target three-dimensional twin model through simulated load data of each operation point to obtain first stress data of each operation point;
(4) Carrying out standard environment parameter matching on the target three-dimensional twin model to obtain a standard environment parameter set;
(5) Based on a standard environment parameter set, respectively carrying out simulated stress analysis on a plurality of operation points of the target three-dimensional twin model through simulated load data of each operation point to obtain second stress data of each operation point;
(6) And respectively carrying out data fusion on the first stress data of each operation point and the second stress data of each operation point to obtain the stress data of each operation point.
In particular, the simulated load data construction is performed on a plurality of operation points of the target three-dimensional twin model, including predicted maximum and minimum loads, which may be from the dead weight of the structure, loads during use, and special loads which may be encountered, such as dynamic loads generated during operation of the device. And carrying out severe environment parameter matching on the target three-dimensional twin model. The harsh environmental parameter sets may include extreme temperatures, high wind speeds, heavy rain, snow loading, etc., which are critical factors that may affect the safety and stability of the structure. For example, in a large gym project in a severe cold area, a severe set of environmental parameters would be of particular concern as to the effects of extreme low temperatures and snow, as these conditions would greatly affect the physical properties and safety of the membrane structure. Based on the severe environment parameter set, performing simulated stress analysis on a plurality of operation points of the target three-dimensional twin model through simulated load data of each operation point so as to obtain first stress data of each operation point. Simulating the maximum stresses and deformations that each working point may be subjected to in the most adverse conditions, ensuring that the safety of the structure is not compromised in any case. During the stress analysis, a computing tool, such as finite element analysis, is used to enable detailed display of stress distribution at each operating point under specific environmental influences. And carrying out standard environment parameter matching on the target three-dimensional twin model to obtain a standard environment parameter set. This typically includes normal climatic conditions, loads in daily use, etc., reflecting the behavior of the structure under normal operating conditions. And carrying out second-round simulation stress analysis on a plurality of operation points of the model by utilizing the simulation load data of each operation point again to obtain second stress data of each operation point. These data help understand and predict the performance of the structure under normal operating conditions, ensuring its design suitability and long-term stability. And carrying out data fusion on the first stress data and the second stress data of each operation point to obtain comprehensive stress data of each operation point. The data fusion process takes into account data under severe and standard environmental conditions, ensuring a comprehensive understanding of the performance of the structure under different environments. The system is enabled to propose specific reinforcement measures or design modification suggestions for each working point, thereby optimizing the safety and functionality of the whole structure.
In a specific embodiment, the process of executing step S104 may specifically include the following steps:
(1) Extracting a key index set of each operation point based on stress data of each operation point, wherein the key index set comprises: stress, strain, and displacement data;
(2) Screening the operation points through the key index set of each operation point to obtain at least two target operation points;
(3) Screening hoisting points of at least two target operation points to obtain at least one hoisting point;
(4) And planning a hoisting path of the target three-dimensional twin model based on at least one hoisting point to obtain a target hoisting path.
Specifically, key index sets of each working point are extracted based on stress data of each working point, and the index sets comprise stress, strain and displacement data, wherein the data are key factors for evaluating physical loads and structural responses possibly born by each working point in an actual installation process. The structural response under various loading conditions was simulated by finite element analysis and provided stress and displacement profiles. And analyzing key indexes of each operation point, screening a plurality of operation points, and determining at least two target operation points. Screening is performed based on the operating point exhibiting optimal structural performance and minimal risk under expected installation or operating conditions. For example, in a large stadium roof installation, the system may be particularly concerned with work points located near structural support points, as these points tend to be subjected to greater stress, requiring assurance of stability and safety during lifting. And screening the hoisting points of at least two target operation points to obtain at least one hoisting point. Factors considered include the location of each point, accessibility, and relative location to other engineering structures. The process of selecting the hoisting point needs to consider the safety and stability of the structure and also needs to evaluate the feasibility and efficiency of the construction equipment. And planning a hoisting path of the target three-dimensional twin model based on at least one hoisting point to obtain a target hoisting path. A path from the starting location to the final installation location is designed that must take into account various physical and operational constraints, such as avoiding existing construction, ground traffic and other construction activities. The design of the hoisting path is a comprehensive decision process involving a balance of factors including time, cost, safety and technical feasibility.
In a specific embodiment, the process of executing step S106 may specifically include the following steps:
(1) Identifying installation risk data and installation state data by simulating the installation data;
(2) Carrying out path correction on the target hoisting path based on the installation state data to obtain a corrected hoisting path;
(3) Extracting risk hoisting parameters from the installation risk data to obtain risk hoisting parameters;
(4) Carrying out path correction on the corrected hoisting path based on the risk hoisting parameters to obtain a film structure installation path;
(5) A structure installation policy for the target film structure is generated based on the film structure installation path.
Specifically, potential risk data and real-time installation state data in the installation process are identified through simulation of the installation data. The simulated installation data typically includes information derived from a pre-calculated model that predicts problems that may be encountered during actual construction, such as the response of the structure under specific loads or environmental conditions. By analyzing the installation state data, necessary correction is carried out on the originally planned hoisting path. The status data provides detailed information about the real-time behavior of the structure during installation, such as displacement, stress distribution, and possible deformation, etc. For example, if it is found in a simulated installation that a structural section is overstressed when hoisted at a particular angle, adjustments to the hoisting path are required to ensure that the hoisting angle and speed do not cause structural damage or overstress. And extracting risk hoisting parameters from the installation risk data to obtain risk hoisting parameters. These parameters include maximum allowable stress, stress concentration at key nodes, and structural stability indicators. And correcting the corrected hoisting path again based on the risk hoisting parameters to obtain a film structure installation path. And (3) comprehensively considering all relevant risks and state data, and optimizing the whole hoisting operation, so that the safety and efficiency of installation are improved to the greatest extent. For example, when installing a roof structure for a large stadium, temporary fixing measures are added to stabilize the structure if the wind speed in a certain area is found to often exceed a safety threshold. And generating a structure installation strategy of the target film structure based on the finally determined film structure installation path. The strategy details the operational steps of each stage, including the specific lifting sequence of each structural member, the required lifting equipment, and the necessary safety measures. The strategy not only ensures the physical feasibility of the structure installation, but also allows for time efficiency and cost control.
The method for installing the multi-curved-surface special-shaped film structure based on digital twin in the embodiment of the present application is described above, and the device for installing the multi-curved-surface special-shaped film structure based on digital twin in the embodiment of the present application is described below, referring to fig. 2, one embodiment of the device for installing the multi-curved-surface special-shaped film structure based on digital twin in the embodiment of the present application includes:
the construction module 201 is configured to perform digital twin model construction on the target membrane structure to obtain a target three-dimensional twin model;
The extraction module 202 is configured to extract an operation point of the target three-dimensional twin model, so as to obtain a plurality of operation points of the target three-dimensional twin model;
the analysis module 203 is configured to perform simulated stress analysis on a plurality of operation points of the target three-dimensional twin model, so as to obtain stress data of each operation point;
The planning module 204 is configured to plan a hoisting path of the target three-dimensional twin model based on stress data of each operation point, so as to obtain a target hoisting path;
the installation module 205 is configured to perform a simulated structure installation on the target three-dimensional twin model based on the target hoisting path and stress data of each operation point, so as to obtain simulated installation data;
A construction module 206, configured to construct a structure installation policy of the target film structure based on the simulated installation data.
Through the cooperation of the components, the physical behavior and the stress condition of the membrane structure can be accurately simulated in a virtual environment by constructing a three-dimensional digital twin model of the target membrane structure, so that the design accuracy is improved, potential problems and risk points can be predicted by an engineering team before actual installation, and the predictability and the planning performance of the installation process are greatly improved. By carrying out simulated stress analysis on each working point, an engineering team can formulate an optimal operation strategy aiming at the specific situation of each point, and the targeted strategy is difficult to realize in the traditional method, so that potential safety hazards in the process can be effectively avoided, and the accuracy and quality of structure installation can be ensured. Furthermore, the hoisting path planning based on the stress data ensures the maximum safety and efficiency of the hoisting process, and particularly in a complex or restrictive working environment, the pre-planned path can effectively avoid obstacles, reduce on-site adjustment and trial and error and greatly improve the installation efficiency.
The application also provides a digital twin-based multi-curved surface special-shaped film structure installation device, which comprises a memory and a processor, wherein the memory stores computer readable instructions, and when the computer readable instructions are executed by the processor, the processor executes the steps of the digital twin-based multi-curved surface special-shaped film structure installation method in the embodiments.
The present application also provides a computer readable storage medium, which may be a non-volatile computer readable storage medium, and may also be a volatile computer readable storage medium, where instructions are stored in the computer readable storage medium, when the instructions are executed on a computer, cause the computer to perform the steps of the digital twinning-based multi-curved shaped film structure installation method.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, systems and units may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random acceS memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The method for installing the multi-curved-surface special-shaped film structure based on digital twinning is characterized by comprising the following steps of:
constructing a digital twin model of the target membrane structure to obtain a target three-dimensional twin model;
extracting operation points of the target three-dimensional twin model to obtain a plurality of operation points of the target three-dimensional twin model;
respectively carrying out simulated stress analysis on a plurality of operation points of the target three-dimensional twin model to obtain stress data of each operation point;
Carrying out hoisting path planning on the target three-dimensional twin model based on stress data of each operation point to obtain a target hoisting path;
Based on the target hoisting path and stress data of each operation point, performing simulation structure installation on the target three-dimensional twin model to obtain simulation installation data;
and constructing a structure installation strategy of the target membrane structure based on the simulated installation data.
2. The method for installing the multi-curved-surface special-shaped film structure based on digital twinning according to claim 1, wherein the step of constructing the digital twinning model of the target film structure to obtain the target three-dimensional twinning model comprises the following steps:
obtaining a design drawing of the target film structure, and extracting the structural shape of the target film structure from the design drawing;
Based on the structure shape, carrying out tension distribution analysis on the target film structure to obtain tension distribution data of the target film structure;
Constructing an initial three-dimensional model based on the tension distribution data and the structural shape;
performing surface stitching continuity verification on the initial three-dimensional model, and performing material attribute assignment on the initial three-dimensional model when verification passes to obtain a first three-dimensional model;
performing environmental parameter assignment on the first three-dimensional model to obtain a second three-dimensional model;
and carrying out stress parameter assignment on the second three-dimensional model to obtain the target three-dimensional twin model.
3. The method for installing a multi-curved-surface special-shaped film structure based on digital twinning according to claim 2, wherein the performing stress parameter assignment on the second three-dimensional model to obtain the target three-dimensional twinning model comprises the following steps:
Carrying out loading condition matching on the second three-dimensional model to obtain a loading condition data set, wherein the loading condition data set comprises: dead weight, snow load and wind load;
Performing model parameter adjustment on the second three-dimensional model through the loading condition data set to obtain a third three-dimensional model;
carrying out non-uniform stress area identification on the third three-dimensional model to obtain a plurality of non-uniform stress areas;
Calibrating the load conversion coefficient of each non-uniform stress area to obtain the load conversion coefficient of each non-uniform stress area;
Carrying out load parameter configuration on the third three-dimensional model based on the load conversion coefficient of each non-uniform stress area to obtain a fourth three-dimensional model;
setting a boundary condition parameter set of the fourth three-dimensional model to obtain the target three-dimensional twin model, wherein the boundary condition parameter set comprises: fixed point set, sliding point set, and installation constraints.
4. The method for installing a multi-curved-surface special-shaped film structure based on digital twinning according to claim 1, wherein the extracting the operation points of the target three-dimensional twinning model to obtain a plurality of operation points of the target three-dimensional twinning model comprises:
performing obstacle extraction on the installation environment of the target three-dimensional twin model to obtain obstacle parameter information;
performing environment sensitive area identification on the installation environment to obtain sensitive area information, wherein the sensitive area information comprises: ground pothole areas and abrupt terrain areas;
carrying out dynamic change area identification on the installation environment to obtain dynamic change area information;
Screening out an operation risk position point set of the installation environment based on the obstacle parameter information, the sensitive area information and the dynamic change area information;
and carrying out operation point analysis on the target three-dimensional twin model through the operation risk position point set to obtain a plurality of operation points of the target three-dimensional twin model.
5. The method for installing a multi-curved-surface special-shaped film structure based on digital twinning according to claim 3, wherein the performing the simulated stress analysis on the plurality of operation points of the target three-dimensional twinning model to obtain stress data of each operation point comprises:
Respectively constructing simulated load data of a plurality of operation points of the target three-dimensional twin model to obtain simulated load data of each operation point;
carrying out severe environment parameter matching on the target three-dimensional twin model to obtain a severe environment parameter set;
based on the severe environment parameter set, respectively carrying out simulated stress analysis on a plurality of operation points of the target three-dimensional twin model through simulated load data of each operation point to obtain first stress data of each operation point;
Carrying out standard environment parameter matching on the target three-dimensional twin model to obtain a standard environment parameter set;
based on the standard environment parameter set, respectively carrying out simulated stress analysis on a plurality of operation points of the target three-dimensional twin model through simulated load data of each operation point to obtain second stress data of each operation point;
and respectively carrying out data fusion on the first stress data of each operation point and the second stress data of each operation point to obtain the stress data of each operation point.
6. The method for installing a multi-curved-surface special-shaped film structure based on digital twinning according to claim 1, wherein the step of carrying out hoisting path planning on the target three-dimensional twinning model based on stress data of each operation point to obtain a target hoisting path comprises the following steps:
Extracting a key index set of each operation point based on stress data of each operation point, wherein the key index set comprises: stress, strain, and displacement data;
screening the operation points through the key index set of each operation point to obtain at least two target operation points;
Screening hoisting points of at least two target operation points to obtain at least one hoisting point;
and planning a hoisting path of the target three-dimensional twin model based on at least one hoisting point to obtain a target hoisting path.
7. The method for installing a multi-curved surface special-shaped film structure based on digital twinning according to claim 6, wherein the constructing a structure installation strategy of the target film structure based on the simulated installation data comprises:
Identifying installation risk data and installation state data by the simulated installation data;
Carrying out path correction on the target hoisting path based on the installation state data to obtain a corrected hoisting path;
extracting risk hoisting parameters from the installation risk data to obtain risk hoisting parameters;
carrying out path correction on the corrected hoisting path based on the risk hoisting parameters to obtain a film structure installation path;
and generating a structure installation strategy of the target film structure based on the film structure installation path.
8. Digital twinning-based multi-curved-surface special-shaped film structure installation device is characterized in that the digital twinning-based multi-curved-surface special-shaped film structure installation device comprises:
the construction module is used for constructing a digital twin model of the target membrane structure to obtain a target three-dimensional twin model;
The extraction module is used for extracting the operation points of the target three-dimensional twin model to obtain a plurality of operation points of the target three-dimensional twin model;
The analysis module is used for respectively carrying out simulated stress analysis on a plurality of operation points of the target three-dimensional twin model to obtain stress data of each operation point;
the planning module is used for planning a hoisting path of the target three-dimensional twin model based on the stress data of each operation point to obtain a target hoisting path;
the installation module is used for carrying out simulation structure installation on the target three-dimensional twin model based on the target hoisting path and stress data of each operation point to obtain simulation installation data;
And the construction module is used for constructing a structure installation strategy of the target film structure based on the simulated installation data.
9. Digital twinning-based multi-curved-surface special-shaped film structure installation equipment is characterized in that the digital twinning-based multi-curved-surface special-shaped film structure installation equipment comprises: a memory and at least one processor, the memory having instructions stored therein;
The at least one processor invokes the instructions in the memory to cause the digital twinning-based multi-curved surface profiled film structure mounting apparatus to perform the digital twinning-based multi-curved surface profiled film structure mounting method as claimed in any one of claims 1 to 7.
10. A computer-readable storage medium having instructions stored thereon, which when executed by a processor, implement the digital twinning-based multi-curved surface profiled film structure mounting method as claimed in any one of claims 1 to 7.
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