Load nondestructive testing method for rosewood flower stand, rosewood flower stand, device and medium
By constructing a three-dimensional geometric model and finite element analysis of the mahogany flower stand, the stress distribution and deformation under loading conditions were simulated, and the problem of sample damage and long detection cycles caused by traditional physical test methods was solved, and high-precision digital detection and mahogany flower stand were realized. design optimization.
Patent Information
- Application Number
- CN202411229687.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2024-12-27
AI Technical Summary
The stability detection of traditional mahogany flower stands relies on physical test methods, resulting in sample damage, long detection cycles, high cost, and difficult to achieve high-precision digital detection.
By constructing a three-dimensional geometric model of the mahogany flower stand, setting the loading conditions of the use scenarios, performing finite element analysis, simulating the stress distribution and deformation under the loading state, and generating a digital detection report to avoid actual damage to the sample.
It realizes efficient and low-cost digital inspection, protects valuable mahogany resources, improves detection accuracy and R&D efficiency, and optimizes the design and service life of mahogany flower stands.
Smart Images
Figure CN119199084A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of furniture detection, and in particular to a method for nondestructive detection of load on a mahogany flower stand, a mahogany flower stand, a device and a storage medium. Background Art
[0002] The stability test of traditional mahogany flower stands mostly relies on physical testing methods, such as static load test and dynamic load test. Although these methods are direct and effective, they often cause irreversible damage to precious mahogany samples, increasing the company's R&D costs and cycle. In addition, traditional testing methods are also limited by the accuracy of testing equipment and errors in human operation, making it difficult to achieve high-precision digital testing, and there are disadvantages such as sample damage, long testing cycle, and high cost. Summary of the invention
[0003] Based on this, a nondestructive detection method for a mahogany flower stand load, a mahogany flower stand, a device and a storage medium are provided to solve the technical problems of sample destruction, long detection cycle and high cost in static load tests on natural mahogany flower stands.
[0004] On the one hand, a nondestructive detection method for a redwood flower stand load is provided, the method comprising: Construct a three-dimensional geometric model of the redwood flower stand; Set the usage scenarios of the redwood flower stand and set loading conditions for each usage scenario; Under the loading conditions of each usage scenario, the stress distribution and deformation simulation of the digital model of the redwood flower stand under the loading state are performed; Analyze the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result; The finite element analysis results are organized into a digital test report and the digital test report is output.
[0005] In one embodiment, constructing a three-dimensional geometric model of a redwood flower stand includes: Scanning with a 3D scanner to obtain a 3D geometric model of the redwood flower stand; Acquire material properties of redwood, wherein the material properties of redwood include density, elastic modulus, Poisson's ratio, and yield strength of redwood; According to the mechanical property parameters of the red wood, the three-dimensional geometric model of the red wood flower stand is meshed and boundary conditions are set to form a digital model of the red wood flower stand.
[0006] In one embodiment, meshing and boundary condition setting of the three-dimensional geometric model of the redwood flower stand are performed according to the mechanical property parameters of the redwood to form a digital model of the redwood flower stand, including: Meshing the three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand generates greater than or equal to 240,000 hexahedral units and 360,000 nodes after meshing; When the thickness of the plate of the mahogany flower stand is less than 10 mm, the hexahedral unit is set to 6 layers; when the thickness of the plate of the mahogany flower stand is greater than 10 mm, the hexahedral unit is set to 11 layers.
[0007] In one embodiment, the setting of the usage scenarios of the redwood flower stand and setting the loading conditions for each usage scenario include: The loading conditions set for each usage scenario include static load, dynamic load, temperature change, humidity change, and the corresponding loading method and loading amount are set; The material properties of redwood under the loading conditions set for each usage scenario are obtained and input into the digital model of the redwood flower stand.
[0008] In one embodiment, obtaining the material properties of redwood under the loading conditions set in each usage scenario and inputting them into the digital model of the redwood flower stand includes: Obtain the mechanical property parameter values of redwood under different temperature and humidity combination conditions; The mechanical performance parameters of redwood corresponding to different temperature and humidity combinations are numerically correlated to form material properties; The material properties are input into the finite element model to set the mechanical property parameter values of redwood under different temperature and humidity combination conditions.
[0009] In one embodiment, analyzing the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result includes: Performing mechanical analysis on the digital model of the mahogany flower stand according to the loading conditions, calculating the deformation parameters of the mahogany flower stand, and outputting the deformation and stress distribution parameter values of the mahogany flower stand under the loading load; Determine whether the safety factor requirement is met according to the deformation amount and stress distribution parameter value of the redwood flower stand under the loading load; If yes, it is determined that the redwood flower stand meets the loading condition; Otherwise, the structural dimensions of the mahogany material are optimized, and the digital model of the mahogany flower stand is mechanically analyzed again according to the loading conditions. If the safety factor requirement is still not met, it is determined that the mahogany flower stand does not meet the loading conditions.
[0010] In one embodiment, arranging the finite element analysis results into a digital test report and outputting the digital test report includes: When the redwood flower stand meets the loading condition, a three-dimensional geometric model of the redwood flower stand that meets the loading condition is obtained, and a loading condition-satisfying label is set for the redwood flower stand; When the redwood flower stand does not meet the loading condition, a three-dimensional geometric model of a redwood flower stand having the smallest difference from the redwood flower stand that meets the loading condition is obtained, and a label indicating that the loading condition is not met is set for the redwood flower stand; Associating the loading condition with a three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand includes structural dimensions of redwood materials; The structural dimensions of the mahogany materials in the three-dimensional geometric model of the mahogany flower stand are correspondingly associated with the labels that meet the loading conditions and the labels that do not meet the loading conditions, and summarized to form a digital inspection report, which includes a deformation chart, a stress distribution chart and optimization suggestions.
[0011] On the other hand, a mahogany flower stand is provided, and the mahogany flower stand is tested according to the mahogany flower stand load non-destructive testing method described above.
[0012] On the other hand, a nondestructive detection device for a redwood flower stand load is provided, the device comprising: A three-dimensional geometric model building module is used to build a three-dimensional geometric model of a redwood flower stand; The loading condition setting module is used to set the usage scenario of the redwood flower stand and set the loading condition for each usage scenario; A loading simulation module is used to simulate the stress distribution and deformation of the digital model of the redwood flower stand under the loading condition of each usage scenario; A finite element analysis module, used to analyze the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario, and to form a finite element analysis result; The test report generating module is used to organize the finite element analysis results into a digital test report and output the digital test report.
[0013] In another aspect, a computer device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the following steps are implemented: Construct a three-dimensional geometric model of the redwood flower stand; Set the usage scenarios of the redwood flower stand and set loading conditions for each usage scenario; Under the loading conditions of each usage scenario, the stress distribution and deformation simulation of the digital model of the redwood flower stand under the loading state are performed; Analyze the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result; The finite element analysis results are organized into a digital test report and the digital test report is output.
[0014] In another aspect, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented: Construct a three-dimensional geometric model of the redwood flower stand; Set the usage scenarios of the redwood flower stand and set loading conditions for each usage scenario; Under the loading conditions of each usage scenario, the stress distribution and deformation simulation of the digital model of the redwood flower stand under the loading state are performed; Analyze the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result; The finite element analysis results are organized into a digital test report and the digital test report is output.
[0015] The above-mentioned redwood flower stand load nondestructive testing method redwood flower stand, device and storage medium construct a three-dimensional geometric model of the redwood flower stand to simulate the deformation under loading conditions, so as to obtain accurate deformation parameters without actually destroying the sample, provide efficient and low-cost digital testing means, and provide a reference for optimizing the structural size of redwood materials.
[0016] Compared with the prior art, the beneficial effects of the present application are as follows: non-destructive testing: avoiding sample damage caused by traditional physical testing methods, protecting precious mahogany resources; high-precision digital testing: improving detection accuracy and reliability, and reducing human operation errors; reducing R&D costs: reducing the number of samples and test equipment investment required for physical testing, and reducing the company's R&D costs; improving R&D efficiency: quickly evaluating design solutions through simulation analysis, shortening the R&D cycle, and improving R&D efficiency; optimizing product design: optimizing the design based on simulation data feedback, improving the stability and service life of the mahogany flower stand. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 This is a flow chart of a nondestructive testing method for a redwood flower stand load in one embodiment of the present application; Figure 2 A schematic flow chart of the steps of constructing a three-dimensional geometric model of a redwood flower stand in one embodiment of the present application; Figure 3 A flowchart of setting a usage scenario of a redwood flower stand in an embodiment of the present application, and setting a loading condition step for each usage scenario; Figure 4 A schematic flow chart of the steps of analyzing the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario and forming a finite element analysis result in one embodiment of the present application; Figure 5 A schematic flow chart of the steps of collating the finite element analysis results into a digital test report and outputting the digital test report in one embodiment of the present application; Figure 6 A three-dimensional geometric model block diagram of a redwood flower stand load nondestructive testing device in one embodiment of the present application; Figure 7 This is a diagram of the internal structure of a computer device in one embodiment of the present application. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0020] In one embodiment, Figure 1 As shown, a nondestructive detection method for a redwood flower stand load is provided, comprising the following steps: Step S1, constructing a three-dimensional geometric model of a redwood flower stand; Step S2, setting the usage scenario of the redwood flower stand and setting loading conditions for each usage scenario; Step S3, under the loading conditions of each usage scenario, simulating the stress distribution and deformation of the digital model of the redwood flower stand under the loading state; Step S4, analyzing the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result; Step S5, collating the finite element analysis results into a digital test report and outputting the digital test report.
[0021] Among them, by constructing a three-dimensional geometric model of the mahogany flower stand and simulating the deformation under loading conditions, accurate deformation parameters can be obtained without actually destroying the sample, providing an efficient and low-cost digital detection method, and providing a reference for optimizing the structural dimensions of mahogany materials.
[0022] like Figure 2 As shown, in this embodiment, the three-dimensional geometric model of the redwood flower stand is constructed including: Step S11, obtaining a three-dimensional geometric model of the redwood flower stand based on scanning with a three-dimensional scanner; Step S12, obtaining mechanical property parameters of redwood, wherein the mechanical property parameters of redwood include density, elastic modulus, Poisson's ratio and yield strength of redwood; Step S13, meshing and setting boundary conditions for the three-dimensional geometric model of the redwood flower stand according to the mechanical property parameters of the redwood, to form a digital model of the redwood flower stand.
[0023] In this embodiment, meshing and boundary condition setting are performed on the three-dimensional geometric model of the redwood flower stand according to the mechanical property parameters of the redwood to form a digital model of the redwood flower stand, including: Meshing the three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand generates greater than or equal to 240,000 hexahedral units and 360,000 nodes after meshing; When the thickness of the plate of the mahogany flower stand is less than 10 mm, the hexahedral unit is set to 6 layers; when the thickness of the plate of the mahogany flower stand is greater than 10 mm, the hexahedral unit is set to 11 layers.
[0024] Among them, for structures with complex shapes, they are discretized to generate a finite number of small blocks, which are called "units".
[0025] The assumed displacement pattern is usually in the form of a polynomial, and the displacement of any point in the element is expressed in terms of the displacements of the nodes as u = Nu e ; The transformation matrix N is called the shape function.
[0026] Combining the shape function and constitutive relation of the unit, we can get the "unit stiffness"; assembling the discrete units according to the overall node numbering rules, we can get the overall equation Ku=F; where K is the overall stiffness matrix and F is the load.
[0027] Since K is a singular matrix, sufficient displacement boundary equations need to be added in the static analysis to have a unique solution. The specific methods to solve the singularity of the stiffness matrix are: setting the main diagonal elements to "0", setting the main diagonal elements to "1" and setting large numbers.
[0028] After the displacement is solved, the stress and strain can be quickly obtained through the displacement results.
[0029] The process of finite element analysis is: finite element modeling, solution and post-processing.
[0030] The specific process of finite element analysis is as follows: When choosing the type of analysis unit, the unit shape should be reasonably selected according to the specific model and focus; Determine the shape function, which is generally linear or quadratic; Set material parameters and cross-section parameters corresponding to the generalized constitutive relations; Discretize, divide the unit, form the unit stiffness matrix, or directly establish the finite element model; add boundary conditions and loads to obtain the complete equation of overall statics or dynamics; Solve the equations, select the appropriate algorithm and corresponding solution control option parameters, and obtain the node displacement solution; After post-processing, the stress, strain, displacement, and constraint reaction force of the node or unit are obtained and visualized in the form of cloud diagrams or curves.
[0031] like Figure 3 As shown, in this embodiment, the use scenario of the redwood flower stand is set, and the loading conditions are set for each use scenario, including: Step S21, setting the loading conditions for each usage scenario including static load, dynamic load, temperature change, humidity change, and setting the corresponding loading mode and loading amount; Step S22, obtaining the material properties of redwood under the loading conditions set in each usage scenario, and inputting them into the digital model of the redwood flower stand.
[0032] In this embodiment, obtaining the material properties of redwood under the loading conditions set in each usage scenario and inputting them into the digital model of the redwood flower stand includes: Obtain the mechanical property parameter values of redwood under different temperature and humidity combination conditions; The mechanical performance parameters of redwood corresponding to different temperature and humidity combinations are numerically correlated to form material properties; The material properties are input into the finite element model to set the mechanical property parameter values of redwood under different temperature and humidity combination conditions.
[0033] Among them, the rosewood of the rosewood flower stand is preferably Dalbergia bariensis, and the loading conditions of the Dalbergia bariensis include air-dry density 0.95g / cm³, Young's modulus 15369MPa, Poisson's ratio 0.47, safety factor (height greater than 800mm) 2.79, safety factor (height less than or equal to 800mm) 1.66, static load 10kg, dynamic load 4kg, temperature 30 degrees Celsius and humidity 85%.
[0034] like Figure 4 As shown, in this embodiment, the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario is analyzed to form a finite element analysis result including: Step S41, performing mechanical analysis on the digital model of the mahogany flower stand according to the loading conditions, calculating the deformation parameters of the mahogany flower stand, and outputting the deformation and stress distribution parameter values of the mahogany flower stand under the loading load; Step S42, judging whether the safety factor requirement is met according to the deformation amount and stress distribution parameter value of the redwood flower stand under the loading load; Step S43: if yes, it is determined that the redwood flower stand meets the loading condition; Step S44, if not, optimize the structural dimensions of the mahogany material, and re-perform mechanical analysis on the digital model of the mahogany flower stand according to the loading conditions. If the safety factor requirement is still not met, it is determined that the mahogany flower stand does not meet the loading conditions.
[0035] In finite element analysis, improper unit settings can cause calculation errors, the most common of which are shear lock and hourglass effect. After processing, the error can be reduced from 70% to 50%, and then to 3%, becoming an acceptable large error.
[0036] like Figure 5 As shown, in this embodiment, arranging the finite element analysis results into a digital test report and outputting the digital test report includes: Step S51, when the redwood flower stand meets the loading condition, obtaining a three-dimensional geometric model of the redwood flower stand that meets the loading condition, and setting a loading condition-satisfying label for the redwood flower stand; Step S52, when the redwood flower stand does not meet the loading condition, obtain a three-dimensional geometric model of the redwood flower stand that has the smallest difference from the redwood flower stand that meets the loading condition, and set a label of not meeting the loading condition for the redwood flower stand; Step S53, associating the loading condition with the three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand includes the structural dimensions of the redwood material; Step S54, the structural dimensions of the mahogany material in the three-dimensional geometric model of the mahogany flower stand are correspondingly associated with the labels that meet the loading conditions and the labels that do not meet the loading conditions, and summarized to form a digital inspection report, which includes a deformation chart, a stress distribution chart and optimization suggestions.
[0037] Among them, deformation charts, stress distribution diagrams, optimization suggestions and other contents are used to guide the design and production of manufacturing companies.
[0038] In the above-mentioned nondestructive detection method of rosewood flower stand load, a three-dimensional geometric model of the rosewood flower stand is constructed to simulate the deformation under loading conditions, so that accurate deformation parameters can be obtained without actually destroying the sample, providing an efficient and low-cost digital detection method, and providing a reference for optimizing the structural dimensions of rosewood materials.
[0039] Compared with the prior art, the beneficial effects of the present application are as follows: non-destructive testing: avoiding sample damage caused by traditional physical testing methods, protecting precious mahogany resources; high-precision digital testing: improving detection accuracy and reliability, and reducing human operation errors; reducing R&D costs: reducing the number of samples and test equipment investment required for physical testing, and reducing the company's R&D costs; improving R&D efficiency: quickly evaluating design solutions through simulation analysis, shortening the R&D cycle, and improving R&D efficiency; optimizing product design: optimizing the design based on simulation data feedback, improving the stability and service life of the mahogany flower stand.
[0040] In this embodiment, a mahogany flower stand is provided, and the mahogany flower stand is tested according to the mahogany flower stand load nondestructive testing method described above.
[0041] The above-mentioned mahogany flower stand constructs a three-dimensional geometric model of the mahogany flower stand and simulates the deformation under loading conditions, so that accurate deformation parameters can be obtained without actually destroying the sample, providing an efficient and low-cost digital detection method, and providing a reference for optimizing the structural dimensions of the mahogany materials of the mahogany flower stand.
[0042] For the specific limitations on mahogany flower stands, please refer to the limitations on the non-destructive testing method for mahogany flower stand loads mentioned above, which will not be repeated here.
[0043] In one embodiment, Figure 6 As shown, a redwood flower stand load nondestructive testing device 10 is provided, including: a three-dimensional geometric model building module 1, a loading condition setting module 2, a loading load simulation module 3, a finite element analysis module 4, and a test report generation module 5.
[0044] The three-dimensional geometric model building module 1 is used to build a three-dimensional geometric model of the redwood flower stand.
[0045] The loading condition setting module 2 is used to set the usage scenario of the redwood flower stand and set the loading condition for each usage scenario.
[0046] The loading load simulation module 3 is used to simulate the stress distribution and deformation of the digital model of the redwood flower stand under the loading condition of each usage scenario.
[0047] The finite element analysis module 4 is used to analyze the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result.
[0048] The test report generating module 5 is used to organize the finite element analysis results into a digital test report and output the digital test report.
[0049] In this embodiment, constructing the three-dimensional geometric model of the redwood flower stand includes: Scanning with a 3D scanner to obtain a 3D geometric model of the redwood flower stand; Acquire material properties of redwood, wherein the material properties of redwood include density, elastic modulus, Poisson's ratio, and yield strength of redwood; According to the mechanical property parameters of the red wood, the three-dimensional geometric model of the red wood flower stand is meshed and boundary conditions are set to form a digital model of the red wood flower stand.
[0050] In this embodiment, meshing and boundary condition setting are performed on the three-dimensional geometric model of the redwood flower stand according to the mechanical property parameters of the redwood to form a digital model of the redwood flower stand, including: Meshing the three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand generates greater than or equal to 240,000 hexahedral units and 360,000 nodes after meshing; When the thickness of the plate of the mahogany flower stand is less than 10 mm, the hexahedral unit is set to 6 layers; when the thickness of the plate of the mahogany flower stand is greater than 10 mm, the hexahedral unit is set to 11 layers.
[0051] In this embodiment, the use scenario of the redwood flower stand is set, and the loading conditions are set for each use scenario, including: The loading conditions set for each usage scenario include static load, dynamic load, temperature change, humidity change, and the corresponding loading method and loading amount are set; The material properties of redwood under the loading conditions set for each usage scenario are obtained and input into the digital model of the redwood flower stand.
[0052] In this embodiment, obtaining the material properties of redwood under the loading conditions set in each usage scenario and inputting them into the digital model of the redwood flower stand includes: Obtain the mechanical property parameter values of redwood under different temperature and humidity combination conditions; The mechanical performance parameters of redwood corresponding to different temperature and humidity combinations are numerically correlated to form material properties; The material properties are input into the finite element model to set the mechanical property parameter values of redwood under different temperature and humidity combination conditions.
[0053] In this embodiment, the analysis of the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result includes: Performing mechanical analysis on the digital model of the mahogany flower stand according to the loading conditions, calculating the deformation parameters of the mahogany flower stand, and outputting the deformation and stress distribution parameter values of the mahogany flower stand under the loading load; Determine whether the safety factor requirement is met according to the deformation amount and stress distribution parameter value of the redwood flower stand under the loading load; If yes, it is determined that the redwood flower stand meets the loading condition; Otherwise, the structural dimensions of the mahogany material are optimized, and the digital model of the mahogany flower stand is mechanically analyzed again according to the loading conditions. If the safety factor requirement is still not met, it is determined that the mahogany flower stand does not meet the loading conditions.
[0054] In this embodiment, arranging the finite element analysis results into a digital test report and outputting the digital test report includes: When the redwood flower stand meets the loading condition, a three-dimensional geometric model of the redwood flower stand that meets the loading condition is obtained, and a loading condition-satisfying label is set for the redwood flower stand; When the redwood flower stand does not meet the loading condition, a three-dimensional geometric model of a redwood flower stand having the smallest difference from the redwood flower stand that meets the loading condition is obtained, and a label indicating that the loading condition is not met is set for the redwood flower stand; Associating the loading condition with a three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand includes structural dimensions of redwood materials; The structural dimensions of the mahogany materials in the three-dimensional geometric model of the mahogany flower stand are correspondingly associated with the labels that meet the loading conditions and the labels that do not meet the loading conditions, and summarized to form a digital inspection report, which includes a deformation chart, a stress distribution chart and optimization suggestions.
[0055] In the above-mentioned redwood flower stand load nondestructive testing device, a three-dimensional geometric model of the redwood flower stand is constructed to simulate the deformation under loading conditions, so that accurate deformation parameters can be obtained without actually destroying the sample, providing an efficient and low-cost digital testing method, and providing a reference for optimizing the structural dimensions of redwood materials.
[0056] For the specific definition of the nondestructive testing device for the load of the mahogany flower stand, please refer to the definition of the nondestructive testing method for the load of the mahogany flower stand above, which will not be repeated here. Each module in the above-mentioned nondestructive testing device for the load of the mahogany flower stand can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.
[0057] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps: Construct a three-dimensional geometric model of the redwood flower stand; Set the usage scenarios of the redwood flower stand and set loading conditions for each usage scenario; Under the loading conditions of each usage scenario, the stress distribution and deformation simulation of the digital model of the redwood flower stand under the loading state are performed; Analyze the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result; The finite element analysis results are organized into a digital test report and the digital test report is output.
[0058] In one embodiment, the computer program further implements the following steps when executed by a processor: The three-dimensional geometric model of the redwood flower stand is constructed as follows: Scanning with a 3D scanner to obtain a 3D geometric model of the redwood flower stand; Acquire material properties of redwood, wherein the material properties of redwood include density, elastic modulus, Poisson's ratio, and yield strength of redwood; According to the mechanical property parameters of the red wood, the three-dimensional geometric model of the red wood flower stand is meshed and boundary conditions are set to form a digital model of the red wood flower stand.
[0059] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented: According to the mechanical property parameters of the red wood, meshing and boundary condition setting are performed on the three-dimensional geometric model of the red wood flower stand to form a digital model of the red wood flower stand, including: Meshing the three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand generates greater than or equal to 240,000 hexahedral units and 360,000 nodes after meshing; When the thickness of the plate of the mahogany flower stand is less than 10 mm, the hexahedral unit is set to 6 layers; when the thickness of the plate of the mahogany flower stand is greater than 10 mm, the hexahedral unit is set to 11 layers.
[0060] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented: The setting of the usage scenarios of the redwood flower stand and setting of loading conditions for each usage scenario include: The loading conditions set for each usage scenario include static load, dynamic load, temperature change, humidity change, and the corresponding loading method and loading amount are set; The material properties of redwood under the loading conditions set for each usage scenario are obtained and input into the digital model of the redwood flower stand.
[0061] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented: The method of obtaining the material properties of the redwood under the loading conditions set in each usage scenario and inputting the material properties into the digital model of the redwood flower stand includes: Obtain the mechanical property parameter values of redwood under different temperature and humidity combination conditions; The mechanical performance parameters of redwood corresponding to different temperature and humidity combinations are numerically correlated to form material properties; The material properties are input into the finite element model to set the mechanical property parameter values of redwood under different temperature and humidity combination conditions.
[0062] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented: The analysis of the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result includes: Performing mechanical analysis on the digital model of the mahogany flower stand according to the loading conditions, calculating the deformation parameters of the mahogany flower stand, and outputting the deformation and stress distribution parameter values of the mahogany flower stand under the loading load; Determine whether the safety factor requirement is met according to the deformation amount and stress distribution parameter value of the redwood flower stand under the loading load; If yes, it is determined that the redwood flower stand meets the loading condition; Otherwise, the structural dimensions of the mahogany material are optimized, and the digital model of the mahogany flower stand is mechanically analyzed again according to the loading conditions. If the safety factor requirement is still not met, it is determined that the mahogany flower stand does not meet the loading conditions.
[0063] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented: Arranging the finite element analysis results into a digital test report and outputting the digital test report comprises: When the redwood flower stand meets the loading condition, a three-dimensional geometric model of the redwood flower stand that meets the loading condition is obtained, and a loading condition-satisfying label is set for the redwood flower stand; When the redwood flower stand does not meet the loading condition, a three-dimensional geometric model of a redwood flower stand having the smallest difference from the redwood flower stand that meets the loading condition is obtained, and a label indicating that the loading condition is not met is set for the redwood flower stand; Associating the loading condition with a three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand includes structural dimensions of redwood materials; The structural dimensions of the mahogany materials in the three-dimensional geometric model of the mahogany flower stand are correspondingly associated with the labels that meet the loading conditions and the labels that do not meet the loading conditions, and summarized to form a digital inspection report, which includes a deformation chart, a stress distribution chart and optimization suggestions.
[0064] For the specific limitations on the steps implemented when the computer program is executed by the processor, please refer to the above limitations on the method for non-destructive testing of redwood flower rack loads, which will not be repeated here.
[0065] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 7 As shown. The computer device includes a processor, a memory, a network interface and a database connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store redwood flower rack load non-destructive testing data. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a redwood flower rack load non-destructive testing method is implemented.
[0066] Those skilled in the art will understand that Figure 7 The three-dimensional geometric model shown in the figure is only a block diagram of a partial structure related to the present application scheme, and does not constitute a limitation on the computer device to which the present application scheme is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.
[0067] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the following steps when executing the computer program: Construct a three-dimensional geometric model of the redwood flower stand; Set the usage scenarios of the redwood flower stand and set loading conditions for each usage scenario; Under the loading conditions of each usage scenario, the stress distribution and deformation simulation of the digital model of the redwood flower stand under the loading state are performed; Analyze the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result; The finite element analysis results are organized into a digital test report and the digital test report is output.
[0068] In one embodiment, when the processor executes the computer program, the processor further implements the following steps: The three-dimensional geometric model of the redwood flower stand is constructed as follows: Scanning with a 3D scanner to obtain a 3D geometric model of the redwood flower stand; Acquire material properties of redwood, wherein the material properties of redwood include density, elastic modulus, Poisson's ratio, and yield strength of redwood; According to the mechanical property parameters of the red wood, the three-dimensional geometric model of the red wood flower stand is meshed and boundary conditions are set to form a digital model of the red wood flower stand.
[0069] In one embodiment, when the processor executes the computer program, the processor further implements the following steps: According to the mechanical property parameters of the red wood, meshing and boundary condition setting are performed on the three-dimensional geometric model of the red wood flower stand to form a digital model of the red wood flower stand, including: Meshing the three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand generates greater than or equal to 240,000 hexahedral units and 360,000 nodes after meshing; When the thickness of the plate of the mahogany flower stand is less than 10 mm, the hexahedral unit is set to 6 layers; when the thickness of the plate of the mahogany flower stand is greater than 10 mm, the hexahedral unit is set to 11 layers.
[0070] In one embodiment, when the processor executes the computer program, the processor further implements the following steps: The setting of the usage scenarios of the redwood flower stand and setting of loading conditions for each usage scenario include: The loading conditions set for each usage scenario include static load, dynamic load, temperature change, humidity change, and the corresponding loading method and loading amount are set; The material properties of redwood under the loading conditions set for each usage scenario are obtained and input into the digital model of the redwood flower stand.
[0071] In one embodiment, when the processor executes the computer program, the processor further implements the following steps: The method of obtaining the material properties of the redwood under the loading conditions set in each usage scenario and inputting the material properties into the digital model of the redwood flower stand includes: Obtain the mechanical property parameter values of redwood under different temperature and humidity combination conditions; The mechanical performance parameters of redwood corresponding to different temperature and humidity combinations are numerically correlated to form material properties; The material properties are input into the finite element model to set the mechanical property parameter values of redwood under different temperature and humidity combination conditions.
[0072] In one embodiment, when the processor executes the computer program, the processor further implements the following steps: The analysis of the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result includes: Performing mechanical analysis on the digital model of the mahogany flower stand according to the loading conditions, calculating the deformation parameters of the mahogany flower stand, and outputting the deformation and stress distribution parameter values of the mahogany flower stand under the loading load; Determine whether the safety factor requirement is met according to the deformation amount and stress distribution parameter value of the redwood flower stand under the loading load; If yes, it is determined that the redwood flower stand meets the loading condition; Otherwise, the structural dimensions of the mahogany material are optimized, and the digital model of the mahogany flower stand is mechanically analyzed again according to the loading conditions. If the safety factor requirement is still not met, it is determined that the mahogany flower stand does not meet the loading conditions.
[0073] In one embodiment, when the processor executes the computer program, the processor further implements the following steps: Arranging the finite element analysis results into a digital test report and outputting the digital test report comprises: When the redwood flower stand meets the loading condition, a three-dimensional geometric model of the redwood flower stand that meets the loading condition is obtained, and a loading condition-satisfying label is set for the redwood flower stand; When the redwood flower stand does not meet the loading condition, a three-dimensional geometric model of a redwood flower stand having the smallest difference from the redwood flower stand that meets the loading condition is obtained, and a label indicating that the loading condition is not met is set for the redwood flower stand; Associating the loading condition with a three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand includes structural dimensions of redwood materials; The structural dimensions of the mahogany materials in the three-dimensional geometric model of the mahogany flower stand are correspondingly associated with the labels that meet the loading conditions and the labels that do not meet the loading conditions, and summarized to form a digital inspection report, which includes a deformation chart, a stress distribution chart and optimization suggestions.
[0074] For the specific limitations on the steps implemented when the processor executes the computer program, please refer to the above limitations on the method for non-destructive testing of redwood flower rack loads, which will not be repeated here.
[0075] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented: Construct a three-dimensional geometric model of the redwood flower stand; Set the usage scenarios of the redwood flower stand and set loading conditions for each usage scenario; Under the loading conditions of each usage scenario, the stress distribution and deformation simulation of the digital model of the redwood flower stand under the loading state are performed; Analyze the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result; The finite element analysis results are organized into a digital test report and the digital test report is output.
[0076] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented: The three-dimensional geometric model of the redwood flower stand is constructed as follows: Scanning with a 3D scanner to obtain a 3D geometric model of the redwood flower stand; Acquire material properties of redwood, wherein the material properties of redwood include density, elastic modulus, Poisson's ratio, and yield strength of redwood; According to the mechanical property parameters of the red wood, the three-dimensional geometric model of the red wood flower stand is meshed and boundary conditions are set to form a digital model of the red wood flower stand.
[0077] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented: According to the mechanical property parameters of the red wood, meshing and boundary condition setting are performed on the three-dimensional geometric model of the red wood flower stand to form a digital model of the red wood flower stand, including: Meshing the three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand generates greater than or equal to 240,000 hexahedral units and 360,000 nodes after meshing; When the thickness of the plate of the mahogany flower stand is less than 10 mm, the hexahedral unit is set to 6 layers; when the thickness of the plate of the mahogany flower stand is greater than 10 mm, the hexahedral unit is set to 11 layers.
[0078] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented: The setting of the usage scenarios of the redwood flower stand and setting of loading conditions for each usage scenario include: The loading conditions set for each usage scenario include static load, dynamic load, temperature change, humidity change, and the corresponding loading method and loading amount are set; The material properties of redwood under the loading conditions set for each usage scenario are obtained and input into the digital model of the redwood flower stand.
[0079] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented: The method of obtaining the material properties of the redwood under the loading conditions set in each usage scenario and inputting the material properties into the digital model of the redwood flower stand includes: Obtain the mechanical property parameter values of redwood under different temperature and humidity combination conditions; The mechanical performance parameters of redwood corresponding to different temperature and humidity combinations are numerically correlated to form material properties; The material properties are input into the finite element model to set the mechanical property parameter values of redwood under different temperature and humidity combination conditions.
[0080] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented: The analysis of the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result includes: Performing mechanical analysis on the digital model of the mahogany flower stand according to the loading conditions, calculating the deformation parameters of the mahogany flower stand, and outputting the deformation and stress distribution parameter values of the mahogany flower stand under the loading load; Determine whether the safety factor requirement is met according to the deformation amount and stress distribution parameter value of the redwood flower stand under the loading load; If yes, it is determined that the redwood flower stand meets the loading condition; Otherwise, the structural dimensions of the mahogany material are optimized, and the digital model of the mahogany flower stand is mechanically analyzed again according to the loading conditions. If the safety factor requirement is still not met, it is determined that the mahogany flower stand does not meet the loading conditions.
[0081] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented: Arranging the finite element analysis results into a digital test report and outputting the digital test report comprises: When the redwood flower stand meets the loading condition, a three-dimensional geometric model of the redwood flower stand that meets the loading condition is obtained, and a loading condition-satisfying label is set for the redwood flower stand; When the redwood flower stand does not meet the loading condition, a three-dimensional geometric model of a redwood flower stand having the smallest difference from the redwood flower stand that meets the loading condition is obtained, and a label indicating that the loading condition is not met is set for the redwood flower stand; Associating the loading condition with a three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand includes structural dimensions of redwood materials; The structural dimensions of the mahogany materials in the three-dimensional geometric model of the mahogany flower stand are correspondingly associated with the labels that meet the loading conditions and the labels that do not meet the loading conditions, and summarized to form a digital inspection report, which includes a deformation chart, a stress distribution chart and optimization suggestions.
[0082] For the specific limitations on the steps implemented when the computer program is executed by the processor, please refer to the above limitations on the method for non-destructive testing of redwood flower rack loads, which will not be repeated here.
[0083] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.
[0084] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0085] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.
Claims
1. A nondestructive testing method for redwood flower stand load, characterized in that: include: constructing a digital model of a redwood planter; Set the usage scenarios of the redwood flower stand and set loading conditions for each usage scenario; Under the loading conditions of each usage scenario, the stress distribution and deformation simulation of the digital model of the redwood flower stand under the loading state are performed; Analyze the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result; The finite element analysis results are organized into a digital test report and the digital test report is output.
2. The nondestructive testing method for redwood flower stand load according to claim 1 is characterized in that: The three-dimensional geometric model of the redwood flower stand is constructed as follows: Scanning with a 3D scanner to obtain a 3D geometric model of the redwood flower stand; Acquire material properties of redwood, wherein the material properties of redwood include density, elastic modulus, Poisson's ratio, and yield strength of redwood; According to the mechanical property parameters of the red wood, the three-dimensional geometric model of the red wood flower stand is meshed and boundary conditions are set to form a digital model of the red wood flower stand.
3. The nondestructive testing method for redwood flower stand load according to claim 2 is characterized in that: According to the mechanical property parameters of the red wood, meshing and boundary condition setting are performed on the three-dimensional geometric model of the red wood flower stand to form a digital model of the red wood flower stand, including: Meshing the three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand generates greater than or equal to 240,000 hexahedral units and 360,000 nodes after meshing; When the thickness of the plate of the mahogany flower stand is less than 10 mm, the hexahedral unit is set to 6 layers; when the thickness of the plate of the mahogany flower stand is greater than 10 mm, the hexahedral unit is set to 11 layers.
4. The nondestructive testing method for redwood flower stand load according to claim 1 is characterized in that: The setting of the usage scenarios of the redwood flower stand and setting of loading conditions for each usage scenario include: The loading conditions set for each usage scenario include static load, dynamic load, temperature change, humidity change, and the corresponding loading method and loading amount are set; The material properties of redwood under the loading conditions set for each usage scenario are obtained and input into the digital model of the redwood flower stand.
5. The nondestructive testing method for redwood flower stand load according to claim 4 is characterized in that: The method of obtaining the material properties of the redwood under the loading conditions set in each usage scenario and inputting the material properties into the digital model of the redwood flower stand includes: Obtain the mechanical property parameter values of redwood under different temperature and humidity combination conditions; The mechanical performance parameters of redwood corresponding to different temperature and humidity combinations are numerically correlated to form material properties; The material properties are input into the finite element model to set the mechanical property parameter values of redwood under different temperature and humidity combination conditions.
6. The nondestructive testing method for redwood flower stand load according to claim 1 is characterized in that: The analysis of the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario to form a finite element analysis result includes: Performing mechanical analysis on the digital model of the mahogany flower stand according to the loading conditions, calculating the deformation parameters of the mahogany flower stand, and outputting the deformation and stress distribution parameter values of the mahogany flower stand under the loading load; Determine whether the safety factor requirement is met according to the deformation amount and stress distribution parameter value of the redwood flower stand under the loading load; If yes, it is determined that the redwood flower stand meets the loading condition; Otherwise, the structural dimensions of the mahogany material are optimized, and the digital model of the mahogany flower stand is mechanically analyzed again according to the loading conditions. If the safety factor requirement is still not met, it is determined that the mahogany flower stand does not meet the loading conditions.
7. The nondestructive testing method for redwood flower stand load according to claim 6 is characterized in that: Arranging the finite element analysis results into a digital test report and outputting the digital test report comprises: When the redwood flower stand meets the loading condition, a three-dimensional geometric model of the redwood flower stand that meets the loading condition is obtained, and a loading condition-satisfying label is set for the redwood flower stand; When the redwood flower stand does not meet the loading condition, a three-dimensional geometric model of a redwood flower stand having the smallest difference from the redwood flower stand that meets the loading condition is obtained, and a label indicating that the loading condition is not met is set for the redwood flower stand; Associating the loading condition with a three-dimensional geometric model of the redwood flower stand, wherein the three-dimensional geometric model of the redwood flower stand includes structural dimensions of redwood materials; The structural dimensions of the mahogany materials in the three-dimensional geometric model of the mahogany flower stand are correspondingly associated with the labels that meet the loading conditions and the labels that do not meet the loading conditions, and summarized to form a digital inspection report, which includes a deformation chart, a stress distribution chart and optimization suggestions.
8. A mahogany flower stand, characterized in that: The mahogany flower stand is tested according to the mahogany flower stand load non-destructive testing method described in any one of claims 1 to 6.
9. A nondestructive testing device for load of redwood flower stand, characterized in that: The device comprises: A three-dimensional geometric model building module is used to build a three-dimensional geometric model of a redwood flower stand; The loading condition setting module is used to set the usage scenario of the redwood flower stand and set the loading condition for each usage scenario; A loading simulation module is used to simulate the stress distribution and deformation of the digital model of the redwood flower stand under the loading condition of each usage scenario; A finite element analysis module, used to analyze the stability of the digital model of the redwood flower stand under the loading conditions of each usage scenario, and to form a finite element analysis result; The test report generating module is used to organize the finite element analysis results into a digital test report and output the digital test report.
10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.