CN117213809A - Multi-axis load spectrum equivalent block spectrum equivalent method, device, terminal and medium - Google Patents
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Abstract
The application discloses a multiaxial load spectrum equivalent block spectrum equivalent method, a device, a terminal and a medium, which belong to the technical field of fatigue endurance of automobile components.
Description
Technical Field
The application discloses a multiaxial load spectrum equivalent block spectrum equivalent method, a multiaxial load spectrum equivalent block spectrum equivalent device, a multiaxial load spectrum equivalent terminal and a multiaxial load spectrum equivalent medium, and belongs to the technical field of fatigue durability of automobile components.
Background
Load spectrum equivalence is a common method for evaluating fatigue durability of parts, and block spectrums after load spectrum equivalence can obviously shorten the test time of a bench, wherein the load spectrum equivalence is a block spectrum which is commonly found in a single-axis load spectrum, but individual bench tests are limited by test devices, so that simultaneous multi-axis loading is difficult to realize, and the multi-axis load spectrum is required to be converted into the single-axis block spectrum.
Disclosure of Invention
Aiming at the defects of the prior art, the application provides a multiaxial load spectrum equivalent block spectrum equivalent method, a multiaxial load spectrum equivalent device, a multiaxial load spectrum equivalent terminal and a multiaxial load spectrum equivalent medium, and solves the problems that individual bench tests are limited by test devices and simultaneous multiaxial loading is difficult to realize.
The technical scheme of the application is as follows:
according to a first aspect of an embodiment of the present application, there is provided a multiaxial load spectrum equivalent block spectrum equivalent method, including:
respectively acquiring original load spectrum data, the cycle times of each road surface and equivalent target cycle times;
2 channel data are selected according to the original load spectrum data, and a multiaxial equivalent load spectrum is obtained according to the 2 channel data;
and obtaining block spectrum equivalent related data according to the multiaxial equivalent post-load spectrum, the road surface circulation times and the equivalent target circulation times.
Preferably, the selecting 2 channel data according to the original load spectrum data, and obtaining a multiaxial equivalent post-load spectrum according to the 2 channel data includes:
obtaining data of each channel according to the original load spectrum data;
2 channel data are selected according to the channel data, and the 2 channel data comprise: first channel data and second channel data;
obtaining a multiaxial equivalent post-load spectrum from the 2 channel data through a formula (1):
Z＝X*cos(θ)+Y*sin(θ) (1)
wherein: z is a multiaxial equivalent post-load spectrum, X is first channel data, Y is second channel data, theta is an angle and is more than or equal to 0 and less than or equal to pi.
Preferably, the obtaining the data of each channel according to the original load spectrum data includes:
and converting the file format of the original load spectrum data into an available text open format by utilizing Adams software, and reading the data of each channel.
Preferably, the obtaining the block spectrum equivalent related data according to the multiaxial equivalent post-load spectrum, the road surface cycle times and the equivalent target cycle times includes:
obtaining the multi-axis equivalent post-load spectrum pseudo damage data of each road surface according to the multi-axis equivalent post-load spectrum;
obtaining multiaxial equivalent load spectrum pseudo-damage data according to the multiaxial equivalent load spectrum pseudo-damage data of each road surface and the cycle times of each road surface;
obtaining a total pseudo damage maximum value according to the multi-axis equivalent load spectrum pseudo damage data;
acquiring a theta angle value corresponding to the total pseudo damage maximum value and multiaxial equivalent data according to the total pseudo damage maximum value;
and obtaining block spectrum equivalent related data according to the theta angle value corresponding to the total pseudo damage maximum value, the multiaxial equivalent post-data and the equivalent target cycle times.
Preferably, the obtaining the block spectrum equivalent related data according to the multiaxial equivalent post-load spectrum, the road surface cycle times and the equivalent target cycle times includes:
obtaining original grade-through counting results of each pavement according to the multi-axis equivalent data corresponding to the total pseudo damage maximum value;
obtaining a load amplitude range set according to the original grade passing counting result of each pavement and the cycle times of each pavement;
obtaining pseudo damage data of each amplitude range according to the load amplitude range set;
obtaining a first-stage block spectrum amplitude range according to the minimum value to the maximum value of the pseudo-damage data in each amplitude range, and obtaining the first-stage block spectrum cycle times according to the first-stage block spectrum amplitude range;
obtaining second-stage block spectrum circulation times according to the equivalent target circulation times and the first-stage block spectrum circulation times;
the pseudo-damage data of each amplitude range, the first-stage block spectrum cycle times, the first-stage block spectrum amplitude range and the second-stage block spectrum cycle times are subjected to a formula (2) to obtain a second-stage block spectrum amplitude range:
wherein: n1 is the first-stage block spectrum cycle number, S1 is the first-stage block spectrum amplitude value range, n2 is the second-stage block spectrum cycle number, S2 is the second-stage block spectrum amplitude value range, m and C are SN curve parameters of corresponding materials respectively, and D is pseudo damage data of each amplitude range;
and loading the equivalent single-axis load spectrum frame according to the theta angle value corresponding to the total pseudo damage maximum value.
According to a second aspect of an embodiment of the present application, there is provided a multiaxial load spectrum equivalent block spectrum equivalent device including:
the data acquisition module is used for respectively acquiring original load spectrum data, the cycle times of each road surface and the equivalent target cycle times;
the equivalent post-load spectrum module is used for selecting 2 channel data according to the original load spectrum data and obtaining a multiaxial equivalent post-load spectrum according to the 2 channel data;
and the block spectrum equivalent module is used for obtaining block spectrum equivalent related data according to the multiaxial equivalent post-load spectrum, the cycle times of each road surface and the equivalent target cycle times.
Preferably, the equivalent post load spectrum module is configured to:
obtaining data of each channel according to the original load spectrum data;
2 channel data are selected according to the channel data, and the 2 channel data comprise: first channel data and second channel data;
obtaining a multiaxial equivalent post-load spectrum from the 2 channel data through a formula (1):
Z＝X*cos(θ)+Y*sin(θ) (1)
wherein: z is a multiaxial equivalent post-load spectrum, X is first channel data, Y is second channel data, theta is an angle and is more than or equal to 0 and less than or equal to pi.
Preferably, the block spectrum equivalent module is configured to:
obtaining original grade-through counting results of each pavement according to the multi-axis equivalent data corresponding to the total pseudo damage maximum value;
obtaining a load amplitude range set according to the original grade passing counting result of each pavement and the cycle times of each pavement;
obtaining pseudo damage data of each amplitude range according to the load amplitude range set;
obtaining a first-stage block spectrum amplitude range according to the minimum value to the maximum value of the pseudo-damage data in each amplitude range, and obtaining the first-stage block spectrum cycle times according to the first-stage block spectrum amplitude range;
obtaining second-stage block spectrum circulation times according to the equivalent target circulation times and the first-stage block spectrum circulation times;
the pseudo-damage data of each amplitude range, the first-stage block spectrum cycle times, the first-stage block spectrum amplitude range and the second-stage block spectrum cycle times are subjected to a formula (2) to obtain a second-stage block spectrum amplitude range:
wherein: n1 is the first-stage block spectrum cycle number, S1 is the first-stage block spectrum amplitude value range, n2 is the second-stage block spectrum cycle number, S2 is the second-stage block spectrum amplitude value range, m and C are SN curve parameters of corresponding materials respectively, and D is pseudo damage data of each amplitude range;
and loading the equivalent single-axis load spectrum frame according to the theta angle value corresponding to the total pseudo damage maximum value.
According to a third aspect of an embodiment of the present application, there is provided a terminal including:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
the method according to the first aspect of the embodiment of the application is performed.
According to a fourth aspect of embodiments of the present application, there is provided a non-transitory computer readable storage medium, which when executed by a processor of a terminal, enables the terminal to perform the method according to the first aspect of embodiments of the present application.
According to a fifth aspect of embodiments of the present application, there is provided an application program product for causing a terminal to carry out the method according to the first aspect of embodiments of the present application when the application program product is run at the terminal.
The application has the beneficial effects that:
the application provides a multiaxial load spectrum equivalent block spectrum equivalent method, a device, a terminal and a medium.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
Fig. 1 is a flow chart illustrating a multi-axis load spectrum equivalent block spectrum equivalent method according to an exemplary embodiment.
Fig. 2 is a block spectrum equivalent schematic diagram in a multiaxial load spectrum equivalent block spectrum equivalent method according to an exemplary embodiment.
Fig. 3 is an exemplary multiaxial load spectrum equivalent result in a multiaxial load spectrum equivalent block spectrum equivalent method shown according to an exemplary embodiment.
Fig. 4 is block spectrum equivalent correlation data in a multi-axis load spectrum equivalent block spectrum equivalent method according to an exemplary embodiment.
Fig. 5 is a block diagram illustrating a multi-axis load spectrum equivalent block spectrum equivalent apparatus according to an exemplary embodiment.
Fig. 6 is a schematic block diagram of a terminal structure according to an exemplary embodiment.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application provides a multiaxial load spectrum equivalent block spectrum equivalent method, which is realized by a terminal, wherein the terminal can be a desktop computer or a notebook computer and the like, and at least comprises a CPU and the like.
Example 1
Fig. 1 is a flow chart illustrating a multi-axis load spectrum equivalent block spectrum equivalent method for use in a terminal, according to an exemplary embodiment, the method comprising the steps of:
step 101, respectively acquiring original load spectrum data, the cycle times of each road surface and equivalent target cycle times.
Step 102, selecting 2 channel data according to the original load spectrum data, and obtaining a multiaxial equivalent load spectrum according to the 2 channel data, wherein the specific contents are as follows:
obtaining data of each channel according to the original load spectrum data, wherein the method comprises the following specific steps: and converting the file format of the original load spectrum data into an available text open format by utilizing Adams software, and reading the data of each channel.
2 channel data are selected according to each channel data, wherein the 2 channel data comprise: first channel data and second channel data; the multi-axis equivalent post-load spectrum is obtained from the 2 channel data through the formula (1):
Z＝X*cos(θ)+Y*sin(θ) (1)
wherein: z is a multiaxial equivalent post-load spectrum, X is first channel data, Y is second channel data, theta is an angle and is more than or equal to 0 and less than or equal to pi, and the angle interval of theta is 1 degree.
Step 103, obtaining block spectrum equivalent related data according to the multiaxial equivalent post-load spectrum, the road surface circulation times and the equivalent target circulation times, wherein the specific contents include:
calculating the multi-axis equivalent post-load spectrum pseudo damage data of each road surface according to the multi-axis equivalent post-load spectrum pseudo damage data, obtaining multi-axis equivalent post-load spectrum pseudo damage data according to the multi-axis equivalent post-load spectrum pseudo damage data of each road surface and the cycle times of each road surface, obtaining total pseudo damage maximum value according to the multi-axis equivalent post-load spectrum pseudo damage data, and obtaining theta angle value corresponding to the total pseudo damage maximum value and multi-axis equivalent post-data according to the total pseudo damage maximum value.
And obtaining block spectrum equivalent related data according to the theta angle value corresponding to the total pseudo damage maximum value, the multiaxial equivalent data and the equivalent target cycle times, wherein the specific steps are as follows:
and carrying out grade-through counting on the multi-axis equivalent data corresponding to the total pseudo damage maximum value to obtain original grade-through counting results of all the road surfaces, obtaining a load amplitude range set according to the original grade-through counting results of all the road surfaces and the cycle times of all the road surfaces, and obtaining pseudo damage data of all the amplitude ranges according to the load amplitude range set, as shown in figure 2.
Obtaining a first-stage block spectrum amplitude range according to the minimum value to the maximum value of the pseudo-damage data in each amplitude range, and obtaining the first-stage block spectrum cycle times according to the first-stage block spectrum amplitude range;
obtaining second-stage block spectrum circulation times according to the equivalent target circulation times and the first-stage block spectrum circulation times;
the pseudo-damage data of each amplitude range, the first-stage block spectrum cycle times, the first-stage block spectrum amplitude range and the second-stage block spectrum cycle times are subjected to a formula (2) to obtain a second-stage block spectrum amplitude range:
wherein: n1 is the first-stage block spectrum cycle number, S1 is the first-stage block spectrum amplitude value range, n2 is the second-stage block spectrum cycle number, S2 is the second-stage block spectrum amplitude value range, m and C are SN curve parameters of corresponding materials respectively, and D is pseudo damage data of each amplitude range;
and loading the equivalent single-axis load spectrum frame according to the theta angle value corresponding to the total pseudo damage maximum value.
Specific examples according to the above steps are as follows:
load spectrum equivalent case of certain automobile parts:
the target equivalent frequency is 90000 times, the road surface circulation frequency is 1100 times, the multiaxial load spectrum equivalent result is shown in fig. 3, the load direction is negative 60 degrees to the X axis (first channel), the load direction is positive 30 degrees to the y axis, the block spectrum equivalent result is shown in fig. 4, the first-stage block spectrum circulation frequency is 1100, the second-stage block spectrum circulation frequency is 89900, and the total circulation frequency is 90000.
Example two
Fig. 5 is a block schematic diagram of a multiaxial load spectrum equivalent block spectrum equivalent device according to an exemplary embodiment, the device comprising:
the data acquisition module 210 is configured to acquire original load spectrum data, cycle numbers of each road surface, and equivalent target cycle numbers respectively;
the equivalent post-load spectrum module 220 is configured to select 2 channel data according to the original load spectrum data, and obtain a multiaxial equivalent post-load spectrum according to the 2 channel data;
the block spectrum equivalent module 230 is configured to obtain block spectrum equivalent related data according to the multiaxial equivalent post-load spectrum, the number of cycles of each road surface, and the equivalent target number of cycles.
Preferably, the post-equivalent load spectrum module 220 is configured to:
obtaining data of each channel according to the original load spectrum data;
2 channel data are selected according to the channel data, and the 2 channel data comprise: first channel data and second channel data;
obtaining a multiaxial equivalent post-load spectrum from the 2 channel data through a formula (1):
Z＝X*cos(θ)+Y*sin(θ) (1)
wherein: z is a multiaxial equivalent post-load spectrum, X is first channel data, Y is second channel data, theta is an angle and is more than or equal to 0 and less than or equal to pi.
Preferably, the block spectrum equivalence module 230 is configured to:
obtaining original grade-through counting results of each pavement according to the multi-axis equivalent data corresponding to the total pseudo damage maximum value;
obtaining a load amplitude range set according to the original grade passing counting result of each pavement and the cycle times of each pavement;
obtaining pseudo damage data of each amplitude range according to the load amplitude range set;
when the load spectrum equivalent series is equal to 1, a first-stage block spectrum amplitude range is obtained according to the minimum value to the maximum value of the pseudo damage data in each amplitude range, and a first-stage block spectrum cycle number is obtained according to the first-stage block spectrum amplitude range;
obtaining second-stage block spectrum circulation times according to the equivalent target circulation times and the first-stage block spectrum circulation times;
the pseudo-damage data of each amplitude range, the first-stage block spectrum cycle times, the first-stage block spectrum amplitude range and the second-stage block spectrum cycle times are subjected to a formula (2) to obtain a second-stage block spectrum amplitude range:
wherein: n1 is the first-stage block spectrum cycle number, S1 is the first-stage block spectrum amplitude value range, n2 is the second-stage block spectrum cycle number, S2 is the second-stage block spectrum amplitude value range, m and C are SN curve parameters of corresponding materials respectively, and D is pseudo damage data of each amplitude range;
and loading the equivalent single-axis load spectrum frame according to the theta angle value corresponding to the total pseudo damage maximum value.
Example III
Fig. 6 is a block diagram of a terminal according to an embodiment of the present application, and the terminal may be a terminal according to the above embodiment. The terminal 300 may be a portable mobile terminal such as: smart phone, tablet computer. The terminal 300 may also be referred to by other names of user equipment, portable terminals, etc.
In general, the terminal 300 includes: a processor 301 and a memory 302.
Processor 301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 301 may be implemented in at least one hardware form of DSP (Digital Signal Processing ), FPGA (Field-Programmable Gate Array, field programmable gate array), PLA (Programmable Logic Array ). The processor 301 may also include a main processor, which is a processor for processing data in an awake state, also called a CPU (Central Processing Unit ), and a coprocessor; a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 301 may integrate a GPU (Graphics Processing Unit, image processor) for rendering and drawing of content required to be displayed by the display screen. In some embodiments, the processor 301 may also include an AI (Artificial Intelligence ) processor for processing computing operations related to machine learning.
Memory 302 may include one or more computer-readable storage media, which may be tangible and non-transitory. Memory 302 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 302 is used to store at least one instruction for execution by processor 301 to implement a multi-axial load spectrum equivalent block spectrum equivalent method provided in the present application.
In some embodiments, the terminal 300 may further optionally include: a peripheral interface 303, and at least one peripheral. Specifically, the peripheral device includes: at least one of radio frequency circuitry 304, touch screen 305, camera 306, audio circuitry 307, positioning component 308, and power supply 309.
The peripheral interface 303 may be used to connect at least one Input/Output (I/O) related peripheral to the processor 301 and the memory 302. In some embodiments, processor 301, memory 302, and peripheral interface 303 are integrated on the same chip or circuit board; in some other embodiments, either or both of the processor 301, the memory 302, and the peripheral interface 303 may be implemented on separate chips or circuit boards, which is not limited in this embodiment.
The Radio Frequency circuit 304 is configured to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuitry 304 communicates with a communication network and other communication devices via electromagnetic signals. The radio frequency circuit 304 converts an electrical signal into an electromagnetic signal for transmission, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 304 includes: antenna systems, RF transceivers, one or more amplifiers, tuners, oscillators, digital signal processors, codec chipsets, subscriber identity module cards, and so forth. The radio frequency circuitry 304 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: the world wide web, metropolitan area networks, intranets, generation mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (Wireless Fidelity ) networks. In some embodiments, the radio frequency circuitry 304 may also include NFC (Near Field Communication ) related circuitry, which is not limiting of the application.
The touch display screen 305 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. The touch screen 305 also has the ability to collect touch signals at or above the surface of the touch screen 305. The touch signal may be input as a control signal to the processor 301 for processing. The touch screen 305 is used to provide virtual buttons and/or virtual keyboards, also known as soft buttons and/or soft keyboards. In some embodiments, the touch display 305 may be one, providing a front panel of the terminal 300; in other embodiments, the touch display 305 may be at least two, respectively disposed on different surfaces of the terminal 300 or in a folded design; in still other embodiments, the touch display 305 may be a flexible display disposed on a curved surface or a folded surface of the terminal 300. Even more, the touch display screen 305 may be arranged in an irregular pattern that is not rectangular, i.e., a shaped screen. The touch display 305 may be made of LCD (Liquid Crystal Display ), OLED (Organic Light-Emitting Diode) or other materials.
The camera assembly 306 is used to capture images or video. Optionally, the camera assembly 306 includes a front camera and a rear camera. In general, a front camera is used for realizing video call or self-photographing, and a rear camera is used for realizing photographing of pictures or videos. In some embodiments, the number of the rear cameras is at least two, and the rear cameras are any one of a main camera, a depth camera and a wide-angle camera, so as to realize fusion of the main camera and the depth camera to realize a background blurring function, and fusion of the main camera and the wide-angle camera to realize a panoramic shooting function and a Virtual Reality (VR) shooting function. In some embodiments, camera assembly 306 may also include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The dual-color temperature flash lamp refers to a combination of a warm light flash lamp and a cold light flash lamp, and can be used for light compensation under different color temperatures.
Audio circuitry 307 is used to provide an audio interface between the user and terminal 300. The audio circuit 307 may include a microphone and a speaker. The microphone is used for collecting sound waves of users and environments, converting the sound waves into electric signals, and inputting the electric signals to the processor 301 for processing, or inputting the electric signals to the radio frequency circuit 304 for voice communication. For the purpose of stereo acquisition or noise reduction, a plurality of microphones may be respectively disposed at different portions of the terminal 300. The microphone may also be an array microphone or an omni-directional pickup microphone. The speaker is used to convert electrical signals from the processor 301 or the radio frequency circuit 304 into sound waves. The speaker may be a conventional thin film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, not only the electric signal can be converted into a sound wave audible to humans, but also the electric signal can be converted into a sound wave inaudible to humans for ranging and other purposes. In some embodiments, the audio circuit 307 may also include a headphone jack.
The location component 308 is used to locate the current geographic location of the terminal 300 to enable navigation or LBS (Location Based Service, location-based services). The positioning component 308 may be a positioning component based on the United states GPS (Global Positioning System ), the Beidou system of China, or the Galileo system of Russia.
The power supply 309 is used to power the various components in the terminal 300. The power source 309 may be alternating current, direct current, disposable or rechargeable. When the power source 309 comprises a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.
In some embodiments, the terminal 300 further includes one or more sensors 310. The one or more sensors 310 include, but are not limited to: acceleration sensor 311, gyroscope sensor 312, pressure sensor 313, fingerprint sensor 314, optical sensor 315, and proximity sensor 316.
The acceleration sensor 311 can detect the magnitudes of accelerations on three coordinate axes of the coordinate system established with the terminal 300. For example, the acceleration sensor 311 may be used to detect components of gravitational acceleration on three coordinate axes. The processor 301 may control the touch display screen 305 to display a user interface in a landscape view or a portrait view according to the gravitational acceleration signal acquired by the acceleration sensor 311. The acceleration sensor 311 may also be used for the acquisition of motion data of a game or a user.
The gyro sensor 312 may detect a body direction and a rotation angle of the terminal 300, and the gyro sensor 312 may collect 3D (three-dimensional) motion of the user to the terminal 300 in cooperation with the acceleration sensor 311. The processor 301 may implement the following functions according to the data collected by the gyro sensor 312: motion sensing (e.g., changing UI according to a tilting operation by a user), image stabilization at shooting, game control, and inertial navigation.
The pressure sensor 313 may be disposed at a side frame of the terminal 300 and/or at a lower layer of the touch screen 305. When the pressure sensor 313 is provided at the side frame of the terminal 300, a grip signal of the terminal 300 by a user may be detected, and left-right hand recognition or shortcut operation may be performed according to the grip signal. When the pressure sensor 313 is disposed at the lower layer of the touch screen 305, control of the operability control on the UI interface can be achieved according to the pressure operation of the user on the touch screen 305. The operability controls include at least one of a button control, a scroll bar control, an icon control, and a menu control.
The fingerprint sensor 314 is used to collect a fingerprint of a user to identify the identity of the user based on the collected fingerprint. Upon recognizing that the user's identity is a trusted identity, the user is authorized by the processor 301 to perform relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying for and changing settings, etc. The fingerprint sensor 314 may be provided on the front, back or side of the terminal 300. When a physical key or a manufacturer Logo is provided on the terminal 300, the fingerprint sensor 314 may be integrated with the physical key or the manufacturer Logo.
The optical sensor 315 is used to collect the ambient light intensity. In one embodiment, processor 301 may control the display brightness of touch screen 305 based on the intensity of ambient light collected by optical sensor 315. Specifically, when the intensity of the ambient light is high, the display brightness of the touch display screen 305 is turned up; when the ambient light intensity is low, the display brightness of the touch display screen 305 is turned down. In another embodiment, the processor 301 may also dynamically adjust the shooting parameters of the camera assembly 306 according to the ambient light intensity collected by the optical sensor 315.
A proximity sensor 316, also referred to as a distance sensor, is typically disposed on the front face of the terminal 300. The proximity sensor 316 is used to collect the distance between the user and the front of the terminal 300. In one embodiment, when the proximity sensor 316 detects a gradual decrease in the distance between the user and the front face of the terminal 300, the processor 301 controls the touch screen 305 to switch from the on-screen state to the off-screen state; when the proximity sensor 316 detects that the distance between the user and the front surface of the terminal 300 gradually increases, the processor 301 controls the touch display screen 305 to switch from the off-screen state to the on-screen state.
Those skilled in the art will appreciate that the structure shown in fig. 6 is not limiting and that more or fewer components than shown may be included or certain components may be combined or a different arrangement of components may be employed.
Example IV
In an exemplary embodiment, a computer readable storage medium is also provided, on which a computer program is stored, which program, when being executed by a processor, implements a multiaxial load spectrum equivalent block spectrum equivalent method as provided by all inventive embodiments of the present application.
Any combination of one or more computer readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
Example five
In an exemplary embodiment, an application program product is also provided, comprising one or more instructions executable by the processor 301 of the above apparatus to perform a multi-axial load spectrum equivalent block spectrum equivalent method as described above.
Although embodiments of the application have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present application. Additional modifications will readily occur to those skilled in the art. Therefore, the application is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. A multiaxial load spectrum equivalent block spectrum equivalent method, comprising:
respectively acquiring original load spectrum data, the cycle times of each road surface and equivalent target cycle times;
2 channel data are selected according to the original load spectrum data, and a multiaxial equivalent load spectrum is obtained according to the 2 channel data;
and obtaining block spectrum equivalent related data according to the multiaxial equivalent post-load spectrum, the road surface circulation times and the equivalent target circulation times.
2. The method for multi-axis load spectrum equivalent block spectrum equivalent according to claim 1, wherein said selecting 2 channel data according to said original load spectrum data and obtaining multi-axis equivalent post-load spectrum according to 2 said channel data comprises:
obtaining data of each channel according to the original load spectrum data;
2 channel data are selected according to the channel data, and the 2 channel data comprise: first channel data and second channel data;
obtaining a multiaxial equivalent post-load spectrum from the 2 channel data through a formula (1):
Z＝X*cos(θ)+Y*sin(θ) (1)
wherein: z is a multiaxial equivalent post-load spectrum, X is first channel data, Y is second channel data, theta is an angle and is more than or equal to 0 and less than or equal to pi.
3. The method for multi-axis load spectrum equivalent block spectrum equivalent according to claim 2, wherein said obtaining each channel data according to said original load spectrum data comprises:
and converting the file format of the original load spectrum data into an available text open format by utilizing Adams software, and reading the data of each channel.
4. A multi-axis load spectrum equivalent block spectrum equivalent method according to claim 3, wherein said obtaining block spectrum equivalent related data according to the multi-axis equivalent post load spectrum, each road surface cycle number and an equivalent target cycle number comprises:
obtaining the multi-axis equivalent post-load spectrum pseudo damage data of each road surface according to the multi-axis equivalent post-load spectrum;
obtaining multiaxial equivalent load spectrum pseudo-damage data according to the multiaxial equivalent load spectrum pseudo-damage data of each road surface and the cycle times of each road surface;
obtaining a total pseudo damage maximum value according to the multi-axis equivalent load spectrum pseudo damage data;
acquiring a theta angle value corresponding to the total pseudo damage maximum value and multiaxial equivalent data according to the total pseudo damage maximum value;
and obtaining block spectrum equivalent related data according to the theta angle value corresponding to the total pseudo damage maximum value, the multiaxial equivalent post-data and the equivalent target cycle times.
5. The method for multi-axis load spectrum equivalent block spectrum equivalent according to claim 4, wherein said obtaining block spectrum equivalent related data according to said multi-axis equivalent post load spectrum, each road surface cycle number and equivalent target cycle number comprises:
obtaining original grade-through counting results of each pavement according to the multi-axis equivalent data corresponding to the total pseudo damage maximum value;
obtaining a load amplitude range set according to the original grade passing counting result of each pavement and the cycle times of each pavement;
obtaining pseudo damage data of each amplitude range according to the load amplitude range set;
obtaining a first-stage block spectrum amplitude range according to the minimum value to the maximum value of the pseudo-damage data in each amplitude range, and obtaining the first-stage block spectrum cycle times according to the first-stage block spectrum amplitude range;
obtaining second-stage block spectrum circulation times according to the equivalent target circulation times and the first-stage block spectrum circulation times;
the pseudo-damage data of each amplitude range, the first-stage block spectrum cycle times, the first-stage block spectrum amplitude range and the second-stage block spectrum cycle times are subjected to a formula (2) to obtain a second-stage block spectrum amplitude range:
wherein: n1 is the first-stage block spectrum cycle number, S1 is the first-stage block spectrum amplitude value range, n2 is the second-stage block spectrum cycle number, S2 is the second-stage block spectrum amplitude value range, m and C are SN curve parameters of corresponding materials respectively, and D is pseudo damage data of each amplitude range;
and loading the equivalent single-axis load spectrum frame according to the theta angle value corresponding to the total pseudo damage maximum value.
6. A multiaxial load spectrum equivalent block spectrum equivalent device, comprising:
the data acquisition module is used for respectively acquiring original load spectrum data, the cycle times of each road surface and the equivalent target cycle times;
the equivalent post-load spectrum module is used for selecting 2 channel data according to the original load spectrum data and obtaining a multiaxial equivalent post-load spectrum according to the 2 channel data;
and the block spectrum equivalent module is used for obtaining block spectrum equivalent related data according to the multiaxial equivalent post-load spectrum, the cycle times of each road surface and the equivalent target cycle times.
7. The multi-axis load spectrum equivalent block spectrum equivalent device according to claim 6, wherein said post-equivalent load spectrum module is configured to:
obtaining data of each channel according to the original load spectrum data;
2 channel data are selected according to the channel data, and the 2 channel data comprise: first channel data and second channel data;
obtaining a multiaxial equivalent post-load spectrum from the 2 channel data through a formula (1):
Z＝X*cos(θ)+Y*sin(θ) (1)
wherein: z is a multiaxial equivalent post-load spectrum, X is first channel data, Y is second channel data, theta is an angle and is more than or equal to 0 and less than or equal to pi.
8. The multi-axis load spectrum equivalent block spectrum equivalent device as recited in claim 6, wherein said block spectrum equivalent module is configured to:
obtaining original grade-through counting results of each pavement according to the multi-axis equivalent data corresponding to the total pseudo damage maximum value;
obtaining a load amplitude range set according to the original grade passing counting result of each pavement and the cycle times of each pavement;
obtaining pseudo damage data of each amplitude range according to the load amplitude range set;
obtaining a first-stage block spectrum amplitude range according to the minimum value to the maximum value of the pseudo-damage data in each amplitude range, and obtaining the first-stage block spectrum cycle times according to the first-stage block spectrum amplitude range;
obtaining second-stage block spectrum circulation times according to the equivalent target circulation times and the first-stage block spectrum circulation times;
the pseudo-damage data of each amplitude range, the first-stage block spectrum cycle times, the first-stage block spectrum amplitude range and the second-stage block spectrum cycle times are subjected to a formula (2) to obtain a second-stage block spectrum amplitude range:
wherein: n1 is the first-stage block spectrum cycle number, S1 is the first-stage block spectrum amplitude value range, n2 is the second-stage block spectrum cycle number, S2 is the second-stage block spectrum amplitude value range, m and C are SN curve parameters of corresponding materials respectively, and D is pseudo damage data of each amplitude range;
and loading the equivalent single-axis load spectrum frame according to the theta angle value corresponding to the total pseudo damage maximum value.
9. A terminal, comprising:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
a multiaxial load spectrum equivalent block spectrum equivalent method as claimed in any one of claims 1 to 5 is performed.
10. A non-transitory computer readable storage medium, characterized in that instructions in the storage medium, when executed by a processor of a terminal, enable the terminal to perform a multiaxial load spectrum equivalent block spectrum equivalent method as claimed in any of claims 1 to 5.
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