WO2007010132A2 - Procede et dispositif de simulation de cintrage d'un tube - Google Patents
Procede et dispositif de simulation de cintrage d'un tube Download PDFInfo
- Publication number
- WO2007010132A2 WO2007010132A2 PCT/FR2006/001755 FR2006001755W WO2007010132A2 WO 2007010132 A2 WO2007010132 A2 WO 2007010132A2 FR 2006001755 W FR2006001755 W FR 2006001755W WO 2007010132 A2 WO2007010132 A2 WO 2007010132A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tube
- bending
- simulation
- machine
- data set
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/14—Pipes
Definitions
- the present invention relates to the simulation of bending a tube.
- tube here means any transport element capable of transporting a hydraulic fluid, a pneumatic fluid, a fuel fluid, a water flow fluid, or the like.
- a tube is composed of straight sections joined by bends in a circular arc, the assembly consisting of a single piece obtained by plastic deformation of an initially straight tube.
- a set of tubes assembled by fittings is referred to as piping.
- the tube is thus defined by the coordinates of its ends, the coordinates of its break points which define the position of the elbows in arcs of circles and the ratio between the radius of curvature of the bends and the diameter of the tube.
- Such tubes can be manufactured on bending machines or bending machines whose operating principle consists in bending the winding of the tube around a tool defining the bending radius by means of a roller, the latter being moving in a plane and always in the same direction.
- the embodiment of the tube is thus implemented by successive bends separated by translations (always in the same direction) and rotations of the tube about its axis, intended respectively to position the bends and guide them.
- the manufacturing process requires certain limitations with respect to the minimum length of the straight sections between each break and the realization by deformation or bending of the arcs. These limitations are defined both by characteristics specific to the tube such as the material constituting it and its thickness, but also by characteristics of the machines used for producing the bends.
- CAD Computer-aided design
- CAD tools do not provide assistance to the designer to predict a priori which bending machine and the associated mechanical tools are able or able to correctly bend a tube defined according to predetermined criteria.
- CAD tools do not provide assistance to the operator to validate a priori on a new bending machine a set of tubes identified by a selection criterion tube, for example the material of the tube.
- the present invention overcomes these disadvantages. It aims to further improve the design and manufacture of such transport elements, both at the design office and at the level of the production line.
- it aims, in design mode, to provide a bending simulation that makes it possible to control the manufacturability of a bare or equipped tube with respect to a fleet of bending machines, the result of the simulation being a function of the number of machines available at moment of the realization of this simulation and evolving with said park. It also aims, in production mode, to validate on a chosen bending machine, a set of tubes identified according to its characteristics.
- It relates to a method for simulating the bending of a tube by means of at least one bending machine.
- the simulation method comprises the following steps:
- Such a method provides significant assistance to the designer in predicting the manufacturability of the tube by means of a selected bending machine.
- This is a decision aid that can be made both in design mode only in production mode. It allows the designer to optimize the layout and cutting of piping taking into account the factors related to the actual production capacity at the time of design, the tubes that constitute it and the manufacturer to optimize the choice of machines which among the available machine park are suitable for the manufacture of this tube.
- the method is applied to a fleet of several bending machines and the following steps are furthermore provided: - obtaining at least one three-dimensional geometric model for at least each bending machine and associated mechanical tools of said park according to at least one manufacturing parameter resulting from the cycle of bending commands thus calculated; and
- Such a method thus provides decision support for several bending machines and associated mechanical tools.
- the step of obtaining a three-dimensional geometric model of a bending machine and of mechanical tools associated is repeated for each manufacturing parameter from the bending control cycle.
- the simulation stage can be implemented at the design office as early as the tube definition phase and / or on the production line to prepare the tube manufacturing.
- each tube data set contains information belonging to the group formed by information on the reference of the tube, the material, the outside diameter, the inside diameter, the bending radius, the length of the crimping necessary for the installation of the tube.
- a connection at a No. 1 end of the tube the length of the crimping necessary for the installation of a fitting at a No. 2 end of the tube, the description of the elements of the tube, the number of data X, Y, Z the X, Y, Z coordinates of the No. 1 end, the No. 2 end and the break points of the tube.
- each technology data set contains information belonging to the group formed by information on the reference of the machine, the material of the tube, the diameter of the tube, the thickness of the tube, the bending radius, the direction of the bending, the minimum and maximum bending angles, the dimensions, the mutual position and the possibility of displacement of the mechanical tools of the bending machine.
- the parameters of the bending control cycle comprise information belonging to the group formed by the reference of the tube, the diameter of the tube, the radius of the bending shape, the number of bending machines to be simulated, the number of machine bending cycles, machine ID, tube end number, carriage advance, minimum turnaround, maximum turnaround, bending angle to be applied, theoretical bending angle , the bending radius achieved.
- the turnaround is defined as an orientation of the tube on the machine made by a rotation of the tube on itself, to allow bending in another plane or in a direction opposite to that of the previous bending.
- the result data set comprises information belonging to the group formed by reference of the tube, the diameter of the tube, the radius of the bending form, the number of bending machines to simulate, the number of bending cycles of the machine, the machine identifier, the number of the end of the tube, the bending reserve in relation to the first end, the bending reserve with respect to the second end, the flow rate of materials required for manufacture, the feedrate, the minimum turnaround, the maximum turnaround, the bending angle to be applied, the theoretical bending angle , the bending radius achieved, the theoretical distance between two nodes, the possibility of advance, the possibility of the minimum turnaround, the possibility of the maximum turnaround and the possibility of bending.
- the simulation comprises a continuous mode devoid of stopping the simulation in the presence of detected interference between the three-dimensional geometric model of the tube and the three-dimensional geometric model of the bending machine and the mechanical tools. associated, comprising a simulation corresponding to a succession of bends starting at one or the other ends of the tube and delivering a file containing the result of the simulation.
- the simulation comprises a step-by-step mode comprising a stop of the simulation in the presence of each detected interference, a possibility of stopping the simulation in progress, a simulation for each end of the tube, a possibility of continuing the simulation in progress. at the position of the detection, a possibility of analyzing and displaying the detected interference and a writing of the detected interferences in a result file and a display of said file.
- the present invention also relates to a device for simulating the bending of a tube by means of at least one bending machine, comprising:
- processing means for obtaining a set of tube data related to the definition of the three-dimensional geometric model of the tube to be bent;
- recovery means for obtaining at least one set of technological data related to parameters of at least one bending machine, associated mechanical tools and / or tube material; calculating means for calculating at least one cycle of bending commands related to at least one manufacturing parameter of the tube as a function of the tube dataset and the technological data set;
- simulation means capable, according to the bending control cycle thus calculated, of obtaining a three-dimensional and kinematic simulation of the bending process of the tube thus represented by the tube data set by means of the bending machine and of mechanical tools associates thus represented by the corresponding three-dimensional geometric model;
- verification means for verifying the possibility of manufacturing the tube by means of the bending machine and associated mechanical tools during the three-dimensional and kinematic simulation thus obtained; and delivering a result data set related to the manufacturability of the tube by the bending machine and the associated mechanical tools thus simulated.
- the present invention also relates to an information carrier readable by a computer system, possibly removable, totally or partially, in particular CD-ROM or magnetic medium, such as a hard disk or a floppy disk, or a transmissible medium, such as an electrical signal or optical system, characterized in that it comprises instructions of a computer program for implementing a method as described above, when the program is loaded and executed by a computer system.
- a computer system possibly removable, totally or partially, in particular CD-ROM or magnetic medium, such as a hard disk or a floppy disk, or a transmissible medium, such as an electrical signal or optical system, characterized in that it comprises instructions of a computer program for implementing a method as described above, when the program is loaded and executed by a computer system.
- a subject of the present invention is a computer program stored on an information medium, said program comprising instructions for implementing a method as described above, when this program is loaded and executed by a user. computer system.
- FIG. 2 is a working environment of a CAD software accessible in a design office and showing the detection of an interference between the three-dimensional geometric model of a bending machine and the three-dimensional geometric model of a tube at during a simulation according to the invention;
- FIG. 3 diagrammatically represents the description and the structure of the representative fields of the data of the tube data set according to the invention
- FIGS. 4A and 4B schematically represent the description and the structure of the data fields of the technological data set according to the invention
- FIGS. 5A and 5B schematically represent the description and the data structure of the cycle of bending commands according to the invention.
- FIGS. 6A and 6B schematically represent the description and the data structure of the result data set according to the invention.
- the user defines the description of the three-dimensional geometric model of the tube to be treated.
- the user can extract data from the tube or piping associated with specific functions or through a man / machine interface using a computer-aided design system, for example of the CATIA (commercial name) type.
- a computer-aided design system for example of the CATIA (commercial name) type.
- the preparation of the tube data allows pre-processing and formatting in text format which will be described in more detail below data used for the simulation of bending and for the manufacture of the part.
- an extraction module 2 may be started to provide a file 10 comprising the three-dimensional geometric characteristics of the bare or equipped tube.
- an additional file 12 makes it possible to take into account the data relating to the fittings installed at the end of the tube and to calculate the coordinates of the ends of the corresponding bare tube.
- the user thus obtains at least one tube data set linked to the definition of the three-dimensional geometric model of the tube to be bent.
- the file 10 relating to the tube data contains information belonging to the group formed: the reference of the tube CHT1;
- the bending radius CHT5 which is identical for all bends of the tube (we do not change tooling during bending) and expressed by a ratio to the diameter of the tube (1, 6D / 3D / 5D);
- the table illustrating the structure of the file 10 comprises a column "data" DO, a column “description” DES and a column “format” FO.
- the "format” field FO can be in alphanumeric format A, in numerical format N, in trigonometric format T.
- parameter CHT8 describes the type of point at which the coordinates (CHT10, CHT11, CHT12) refer.
- CHT10, CHT11, CHT12 coordinates
- the parameter CHT8 is type A (alphanumeric).
- the "end or extremity” type points indicate a tube end and the "break or break” type points of the break points.
- the file to be processed contains at least two "extremity” type points and a "break” type point.
- the user determines at least one set of technological data related to parameters of at least one bending machine, associated mechanical tools and / or material of tube.
- the file 20 will make it possible to make a choice of the machine or to characterize each machine according to different criteria.
- the file 20 includes technological data, which are data related to the parameters relating to bending machines, associated tools (mandrel, jaws, slider, wrinkle erase) and also to the material of the tube (norm material, spring-back or return elastic).
- a module 22 makes it possible to extract all of the technological data 20 from an application containing, in the form of a database (not represented), all the corresponding data.
- the technological data file 20 contains information belonging to the group formed by:
- the tube has a diameter of 101.6 and a bending radius of 1D, then it can be made on the machine 1. If the diameter is 12.7 and the bending radius is 3D, then it can be done on machine 2 or on the machine 3. For a diameter of 12.7 and a bending radius of 3D aluminum thickness 0.66, the coefficient of springback (springback) constant to take into account is 4 whatever the machine considered. Finally the machine 1 can bend at a maximum angle of 180 ° whatever the characteristics of the tube.
- This set of data relating to each preselected machine / tube pair is simulated according to the invention.
- the user After obtaining the tube data file 10 and that of the technological data file 20, the user can set up the bending simulation according to the invention.
- step 30 of the method according to the invention it is planned to calculate at least one cycle of bending commands 35 related to at least one manufacturing parameter of the tube according to the data set tube 10 and the technological data set Thus obtained. Then, at least one three-dimensional geometric model of at least one bending machine and associated mechanical tools 40 is obtained as a function of at least one manufacturing parameter 50 resulting from the thus calculated bending control cycle 30.
- the method makes it possible to obtain a three-dimensional and kinematic simulation of the bending process of the tube thus represented by the tube data set. by means of the bending machine and associated mechanical tools thus represented by the corresponding three-dimensional geometric model 40.
- the LRA file 35 has a STRU structure conforming to that of the files 10 and 20 and contains information belonging to the group formed by:
- bending cycle calculations are decomposed in the following order:
- LRA The data set resulting from these bending control calculations 30 is stored in a text file 35 named LRA, mainly characterizing the technological data which are the L feeds, the R overrides and the A bends.
- This data is input data for the anti-collision simulation part of the method according to the invention.
- the method searches in a catalog for the corresponding machines and tools.
- the objective is to provide a set of three-dimensional geometries machines / tools 40 anti-collision simulation according to the parameters related to the manufacture of the tube.
- the method has data making it possible to obtain a three-dimensional and kinematic simulation of the bending process of the tube thus represented by the tube data set 10 by means of a bending machine and associated mechanical tools thus represented by the technological data set 20.
- the method carries out a kinematic simulation of the bends to control the manufacturability of the elementary piping with respect to a fleet of bending machines.
- the method thus makes it possible to determine the valid games and to identify the games that are not possible and therefore the presence or absence of collisions during the simulation.
- the verification of anticollision of the tube with respect to the park of possible bending machines and the tools used is carried out in both directions of bending of the tube and taking into account for the bending of the springback effect (springback) .
- the bare tube is presented on the roller and the jaw, then the bending cycles 30 calculated previously are reconstituted one by one taking into account the elastic deformation due to the spring-back.
- the simulation checks for the presence of interference between the three-dimensional geometric model of the pipework 10 and that of the bending machine 40.
- the check is also made on the tools that can most frequently cause collisions, for example a single or double roller during turnovers and the bending arm during spring-back bending.
- the simulation provides a result file 70 from the completed calculations of the simulation response on the found interferences.
- This file can be applied to the corresponding bending machine in production mode.
- the result file 70 has a STRU structure conforming to that of the files 10, 20 and 35 and contains information belonging to the group formed by:
- At least one sequence of bending commands for the bending machine thus simulated can be generated automatically and deduced from the cycle of bending commands validated at the end of the simulation.
- the user can visualize continuously or in step by step the different bending cycles for a finer analysis.
- the user can view the image of the interference (FIG. 2) on a software environment V1 of a CAD tool such as the Catia version V5 software.
- bending simulation is started via workshops and an icon in the CAD software toolbar.
- the launch of the bending simulation can be implemented in the design and production application, to check a tube with respect to a machine park. This launch can be carried out by an "anti-collision action" button.
- the start of the bending simulation can be performed by a "validate" button on the man / machine interface.
- a dialog box allows you to view the simulation either in continuous mode or in step-by-step mode.
- the software platform includes a classic environment in the field of CAD computer-aided design.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008522014A JP2009503636A (ja) | 2005-07-22 | 2006-07-18 | 管の曲げ成形シミュレーション方法と装置 |
EP06778879A EP1907959A2 (fr) | 2005-07-22 | 2006-07-18 | Procede et dispositif de simulation de cintrage d'un tube |
US11/996,137 US20080228454A1 (en) | 2005-07-22 | 2006-07-18 | Method and Device for Simulating Bending of a Tube |
CN2006800264817A CN101366031B (zh) | 2005-07-22 | 2006-07-18 | 模拟管件弯曲的方法和设备 |
BRPI0615560-0A BRPI0615560A2 (pt) | 2005-07-22 | 2006-07-18 | processo de simulação de curvamento de tubo, dispositivo de simulação de curvamento de tubo, suporte de informações legìvel por um sistema informático e programa de computador armazenado em um suporte de informações |
CA002615898A CA2615898A1 (fr) | 2005-07-22 | 2006-07-18 | Procede et dispositif de simulation de cintrage d'un tube |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0507854 | 2005-07-22 | ||
FR0507854A FR2888959B1 (fr) | 2005-07-22 | 2005-07-22 | Procede et dispositif de simulation de cintrage d'un tube |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007010132A2 true WO2007010132A2 (fr) | 2007-01-25 |
WO2007010132A3 WO2007010132A3 (fr) | 2007-03-22 |
Family
ID=36128104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2006/001755 WO2007010132A2 (fr) | 2005-07-22 | 2006-07-18 | Procede et dispositif de simulation de cintrage d'un tube |
Country Status (9)
Country | Link |
---|---|
US (1) | US20080228454A1 (fr) |
EP (1) | EP1907959A2 (fr) |
JP (1) | JP2009503636A (fr) |
CN (1) | CN101366031B (fr) |
BR (1) | BRPI0615560A2 (fr) |
CA (1) | CA2615898A1 (fr) |
FR (1) | FR2888959B1 (fr) |
RU (1) | RU2414317C2 (fr) |
WO (1) | WO2007010132A2 (fr) |
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TWI726566B (zh) * | 2020-01-02 | 2021-05-01 | 穎漢科技股份有限公司 | 退彎模擬方法及退彎模擬系統 |
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FR2946549B1 (fr) * | 2009-06-11 | 2014-09-19 | Eads Europ Aeronautic Defence | Procede de mesurage et de fabrication d'un tube. |
US20110308068A1 (en) * | 2010-06-22 | 2011-12-22 | Scott Russell | Modified intubation tube and formation |
US9391498B2 (en) * | 2011-09-29 | 2016-07-12 | General Electric Company | Methods and systems for use in configuring a coil forming machine |
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KR101604449B1 (ko) * | 2014-02-26 | 2016-03-17 | 경상대학교 산학협력단 | 시뮬레이션 장치 |
US20150363524A1 (en) * | 2014-06-16 | 2015-12-17 | Ford Global Technologies, Llc | Stress relief in a finite element simulation for springback compensation |
US10460072B2 (en) | 2015-08-25 | 2019-10-29 | The Boeing Company | Apparatuses and methods for modeling tubing runs |
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CN113681574A (zh) * | 2021-08-24 | 2021-11-23 | 南京航空航天大学 | 一种面向钣金折弯的机器人三维可视化仿真与离线编程系统 |
CN114510466A (zh) * | 2022-01-07 | 2022-05-17 | 五邑大学 | 折弯机数据优化方法及存储介质 |
KR102409450B1 (ko) * | 2022-03-07 | 2022-06-16 | 주식회사 이안 | 배관 자동 설계 시스템 및 방법 |
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- 2005-07-22 FR FR0507854A patent/FR2888959B1/fr active Active
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- 2006-07-18 BR BRPI0615560-0A patent/BRPI0615560A2/pt not_active IP Right Cessation
- 2006-07-18 EP EP06778879A patent/EP1907959A2/fr not_active Withdrawn
- 2006-07-18 JP JP2008522014A patent/JP2009503636A/ja active Pending
- 2006-07-18 RU RU2008106761/02A patent/RU2414317C2/ru not_active IP Right Cessation
- 2006-07-18 WO PCT/FR2006/001755 patent/WO2007010132A2/fr active Application Filing
- 2006-07-18 CN CN2006800264817A patent/CN101366031B/zh not_active Expired - Fee Related
- 2006-07-18 US US11/996,137 patent/US20080228454A1/en not_active Abandoned
- 2006-07-18 CA CA002615898A patent/CA2615898A1/fr not_active Abandoned
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111400860A (zh) * | 2019-12-23 | 2020-07-10 | 北京星航机电装备有限公司 | 一种管路走向可加工性检查方法 |
CN111400860B (zh) * | 2019-12-23 | 2023-07-28 | 北京星航机电装备有限公司 | 一种管路走向可加工性检查方法 |
TWI726566B (zh) * | 2020-01-02 | 2021-05-01 | 穎漢科技股份有限公司 | 退彎模擬方法及退彎模擬系統 |
Also Published As
Publication number | Publication date |
---|---|
RU2414317C2 (ru) | 2011-03-20 |
BRPI0615560A2 (pt) | 2011-05-24 |
CA2615898A1 (fr) | 2007-01-25 |
CN101366031A (zh) | 2009-02-11 |
CN101366031B (zh) | 2011-06-15 |
RU2008106761A (ru) | 2009-08-27 |
FR2888959B1 (fr) | 2007-10-12 |
WO2007010132A3 (fr) | 2007-03-22 |
EP1907959A2 (fr) | 2008-04-09 |
FR2888959A1 (fr) | 2007-01-26 |
JP2009503636A (ja) | 2009-01-29 |
US20080228454A1 (en) | 2008-09-18 |
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