Physical virtual simulation-based mechanical detection test analysis system

Abstract

The invention relates to the field of mechanical detection and analysis, and particularly discloses a mechanical detection test analysis system based on physical virtual simulation. The method comprises the following steps: acquiring mechanical response information of each test point on the surface of an industrial part under the action of each test static load, mechanical response information under the action of each test dynamic load and mechanical response information under the action of each test cyclic load in various assembly states; analyzing the mechanical property evaluation coefficients of the industrial parts in various assembly states under the action of static load, dynamic load and cyclic load, and further comprehensively evaluating the mechanical properties of the industrial parts in various assembly states; load is applied to the physical virtual simulation model to simulate the stress-strain condition of parts in actual work, the cost and time of physical testing can be effectively reduced, potential problems can be found and improved in the design stage, and therefore the manufacturing frequency and cost of physical prototypes are reduced.

Description

Technical Field

[0001] The invention relates to the field of mechanical detection and analysis, and in particular to a mechanical detection test analysis system based on physical virtual simulation. Background Art

[0002] Mechanical properties testing is an important means of evaluating the various properties of metal materials and their products under the action of force, including elasticity, inelasticity, stress-strain relationship and other performance indicators. These performance indicators are crucial for the development of new materials, the improvement of material quality, and the design and use of metal products. Among them, mechanical properties testing of industrial parts can comprehensively evaluate the mechanical behavior of parts under different conditions, thereby providing a scientific basis for product design and use, ensuring the reliability and safety of parts during manufacturing and use, and improving product quality, which is of practical significance.

[0003] Physical virtual simulation can simulate complex stress and deformation conditions, helping engineers better understand the mechanical behavior of materials. It is widely used in mechanical testing of industrial components, greatly improving the efficiency of design and testing, reducing development costs and risks, and providing strong support for the design and optimization of components.

[0004] However, the existing methods of conducting mechanical testing on industrial parts through physical virtual simulation have some shortcomings: First, most of the existing methods evaluate the mechanical properties of industrial parts based on the mechanical performance of the parts in a certain state, such as evaluating the mechanical properties based on the mechanical performance of industrial parts in an unassembled state, without comprehensively considering the mechanical performance of industrial parts in other states. As a result, the detection dimensions are not diverse enough, resulting in low reliability of the mechanical performance evaluation results.

[0005] Secondly, most of the existing methods evaluate the mechanical properties of industrial parts based on their mechanical performance under a single type of load. For example, mechanical performance evaluation is performed based on the mechanical performance of industrial parts under static loads. The mechanical performance of industrial parts under other types of loads is not considered comprehensively. As a result, the detection dimensions are not diverse enough, resulting in low reliability of mechanical performance evaluation results.

[0006] Thirdly, most existing methods evaluate the mechanical properties of industrial parts based on the stress and strain at a certain point or a specified point on the surface of the parts, without comprehensive detection and analysis of the stress and strain at multiple points on the surface of the parts, which makes the reliability of the mechanical properties evaluation results low. Summary of the invention

[0007] In view of the above problems, the present invention proposes a mechanical detection test analysis system based on physical virtual simulation to realize the function of mechanical detection and analysis.

[0008] The technical solution adopted by the present invention to solve its technical problem is: the present invention provides a mechanical detection test analysis system based on physical virtual simulation, including: a physical virtual simulation model construction module: used to obtain geometric data, material property data and assembly relationship data of industrial parts, and use computer technology and virtual reality technology to build a physical virtual simulation model of industrial parts.

[0009] Mechanical response analysis module under static load: used to obtain the mechanical response information of each measuring point on the surface of industrial parts under various assembly states under various test static loads, where the mechanical response information includes displacement information, strain information and stress information, and analyze the mechanical performance evaluation coefficients of industrial parts under various assembly states under static loads.

[0010] Dynamic load mechanical response analysis module: used to obtain the mechanical response information of each measuring point on the surface of industrial parts in various assembly states under the action of various test dynamic loads, and analyze the mechanical performance evaluation coefficients of industrial parts in various assembly states under the action of dynamic loads.

[0011] Mechanical response analysis module under cyclic load: used to obtain the mechanical response information of each measuring point on the surface of industrial parts in various assembly states under various test cyclic loads, and analyze the mechanical performance evaluation coefficients of industrial parts in various assembly states under cyclic loads.

[0012] Mechanical detection test result feedback module: It is used to analyze the comprehensive evaluation index of mechanical properties of industrial parts in various assembly states and provide feedback based on the mechanical property evaluation coefficients of industrial parts in various assembly states under static load, dynamic load and cyclic load.

[0013] Database: used to store information related to mechanical properties required for industrial component design.

[0014] Based on the above embodiments, the specific working process of the static load mechanical response analysis module includes: setting various assembly states of industrial parts, wherein the assembly states include an independent unassembled state, a tight fit state, and a loose fit state.

[0015] Select measuring points on the surface of industrial parts according to preset principles.

[0016] According to the preset principles, the attribute variables of the static load are adjusted and set multiple times, where the attribute variables include value, direction and loading duration, to obtain the static load of each test.

[0017] Each test static load is imported into the physical virtual simulation model of industrial parts, and each test static load is applied to each measuring point on the surface of the industrial parts in various assembly states. The simulation results of each measuring point on the surface of the industrial parts in various assembly states under the action of each test static load are extracted, and the mechanical response information of each measuring point on the surface of the industrial parts in various assembly states under the action of each test static load is obtained, wherein the mechanical response information includes displacement information, strain information and stress information.

[0018] On the basis of the above-mentioned embodiment, the specific working process of the static load mechanical response analysis module also includes: according to the displacement information of each measuring point on the surface of the industrial parts in various assembly states under the action of each test static load, the displacement amount and displacement direction of each measuring point on the surface of the industrial parts in various assembly states under the action of each test static load are obtained, and the displacement amount of each measuring point on the surface of the industrial parts in various assembly states under the action of each test static load is recorded as i represents the number of the i-th assembly state, i=1,2,3, j represents the number of the j-th measuring point, j=1,2,...,m, a represents the number of the a-th test static load, a=1,2,...,b.

[0020] Extract the mechanical properties related information of industrial parts design requirements stored in the database, obtain the displacement threshold of each measuring point on the surface of industrial parts under various assembly states under each test static load, and record it as

[0021] Set the influence weight factors corresponding to each displacement direction of each measuring point on the surface of industrial parts in various assembly states, and screen out the influence weight factors corresponding to the displacement direction of each measuring point on the surface of industrial parts in various assembly states under each test static load, which are recorded as

[0022] By analyzing the formula Obtain the first evaluation factor of the mechanical properties of industrial parts in various assembly states under static load Where φ1 represents the correction coefficient of the preset first evaluation factor of mechanical properties, e represents the natural constant, and ε j Represents the preset weight factor of the jth measuring point,

[0023] On the basis of the above-mentioned embodiment, the specific working process of the static load mechanical response analysis module also includes: according to the strain information of each measuring point on the surface of the industrial parts under various assembly states under the action of each test static load, the strain amount of each measuring point on the surface of the industrial parts under various assembly states under the action of each test static load is obtained, and it is recorded as

[0024] According to the mechanical properties related information required by the design of industrial parts, the strain thresholds of each measuring point on the surface of industrial parts under various assembly states under the action of each test static load are obtained and recorded as

[0025] A coordinate system is established with the strain as the horizontal coordinate and the load value as the vertical coordinate, and the load-deformation curves of each measuring point on the surface of industrial parts under various assembly states under static load are plotted. The minimum slope, average slope and maximum slope of the load-deformation curves of each measuring point on the surface of industrial parts under various assembly states under static load are further obtained, and they are recorded as

[0026] Obtain the minimum slope, average slope and maximum slope of the reference load-deformation curve of each measuring point on the surface of industrial parts under various assembly states under static load, and record them as

[0027] By analyzing the formula Obtain the degree of fit of the load-deformation curves of each measuring point on the surface of industrial parts under static load in various assembly states Wherein △k1, △k2, and △k3 represent the deviation thresholds of the minimum slope, average slope, and maximum slope between the preset load-deformation curve and the reference load-deformation curve, respectively.

[0028] By analyzing the formula Obtain the second evaluation factor of the mechanical properties of industrial parts in various assembly states under static load Where φ2 represents the correction coefficient of the preset second evaluation factor of mechanical properties.

[0029] On the basis of the above-mentioned embodiment, the specific working process of the static load mechanical response analysis module also includes: according to the stress information of each measuring point on the surface of the industrial parts under various assembly states under the action of each test static load, the stress of each measuring point on the surface of the industrial parts under various assembly states under the action of each test static load is obtained, and the maximum stress that each measuring point on the surface of the industrial parts under various assembly states can withstand under the action of the static load is obtained, which is recorded as

[0030] A coordinate system is established with strain as the horizontal coordinate and stress as the vertical coordinate, and the stress-strain curves of each measuring point on the surface of industrial parts under static load in various assembly states are plotted.

[0031] According to the mechanical properties information required by the design of industrial parts, the allowable stress of each measuring point on the surface of industrial parts under static load in various assembly states is obtained and recorded as F ij , and obtain the reference stress-strain curves of each measuring point on the surface of industrial parts under static load in various assembly states.

[0032] Obtain the degree of coincidence between the stress-strain curve of each measuring point on the surface of industrial parts under static load and the reference stress-strain curve in various assembly states, which is recorded as γ ij .

[0033] By analyzing the formula Obtain the third evaluation factor of the mechanical properties of industrial parts in various assembly states under static load Where φ3 represents the correction coefficient of the preset third evaluation factor of mechanical properties.

[0034] On the basis of the above-mentioned embodiment, the specific working process of the static load mechanical response analysis module also includes: calculating the weighted average value of the first evaluation factor, the second evaluation factor, and the third evaluation factor of the mechanical properties of industrial parts in various assembly states under static load, and obtaining the mechanical properties evaluation coefficient of industrial parts in various assembly states under static load.

[0035] Compared with the prior art, the physical virtual simulation mechanical detection test analysis system described in the present invention has the following beneficial effects: 1. The present invention detects the mechanical performance of industrial parts in an independent unassembled state, a tight fit state, and a loose fit state, and further integrates the mechanical performance in various assembly states to evaluate its mechanical properties, thereby enriching the diversity of detection dimensions and improving the reliability of mechanical performance evaluation results.

[0036] 2. The present invention detects the mechanical properties of industrial parts under static load, dynamic load and cyclic load, and further evaluates their mechanical properties by comprehensively analyzing the mechanical properties under various loads, thereby enriching the diversity of detection dimensions and improving the reliability of mechanical property evaluation results.

[0037] 3. The present invention selects various measuring points on the surface of industrial parts and evaluates the mechanical properties of the industrial parts according to the stress and strain at key positions on the surface of the industrial parts, thereby improving the reliability of the mechanical properties evaluation results. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0039] Figure 1 This is a system module connection diagram of the present invention. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1 As shown, the present invention provides a mechanical detection test analysis system based on physical virtual simulation, including a physical virtual simulation model construction module, a static load mechanical response analysis module, a dynamic load mechanical response analysis module, a cyclic load mechanical response analysis module, a mechanical detection test result feedback module, and a database.

[0042] The static load mechanical response analysis module is respectively connected to the physical virtual simulation model construction module and the dynamic load mechanical response analysis module; the cyclic load mechanical response analysis module is respectively connected to the dynamic load mechanical response analysis module and the mechanical detection test result feedback module; the database is respectively connected to the static load mechanical response analysis module, the dynamic load mechanical response analysis module, and the cyclic load mechanical response analysis module.

[0043] The physical virtual simulation model building module is used to obtain geometric data, material property data and assembly relationship data of industrial parts and components, and to build a physical virtual simulation model of the industrial parts and components using computer technology and virtual reality technology.

[0044] Furthermore, the specific working process of the physical virtual simulation model building module is: obtaining geometric data of industrial parts, wherein the geometric data includes geometric shape and size information.

[0045] In a specific embodiment, the geometric data of the industrial parts can be obtained by performing three-dimensional scanning on the industrial parts.

[0046] In another specific embodiment, the geometric data of the industrial component can be obtained through a two-dimensional drawing or a three-dimensional CAD model of the industrial component.

[0047] Obtain material property data of industrial parts, including density, elastic modulus, Poisson's ratio, and thermal expansion coefficient.

[0048] As a preferred solution, the material property data of industrial parts can be obtained from a material data sheet provided by a material supplier or determined through material testing experiments.

[0049] Acquire assembly relationship data of industrial parts, wherein the assembly relationship data includes assembly relationship data of each component in the industrial parts and assembly relationship data between the industrial parts and other parts.

[0050] In a specific embodiment, the assembly relationship data includes a connection mode and a connection position.

[0051] As a preferred solution, the connection method of each component in the industrial component and the connection method of the industrial component with other components include but are not limited to: bolt connection, welding, riveting, etc.

[0052] As a preferred solution, the assembly relationship data of industrial parts can be obtained through the two-dimensional drawings or three-dimensional CAD models of industrial parts.

[0053] Use computer technology and virtual reality technology to build physical virtual simulation models of industrial parts.

[0054] In a specific embodiment, a physical virtual simulation model of industrial parts is constructed by simulation software such as ANSYS Mechanical, ABAQUS, Fluent, CFX, and COMSOL-Multiphysics.

[0055] The static load mechanical response analysis module is used to obtain the mechanical response information of each measuring point on the surface of industrial parts in various assembly states under the action of various test static loads, wherein the mechanical response information includes displacement information, strain information and stress information, and analyzes the mechanical performance evaluation coefficients of industrial parts in various assembly states under the action of static loads.

[0056] Furthermore, the specific working process of the static load mechanical response analysis module includes: setting various assembly states of industrial parts, wherein the assembly states include an independent unassembled state, a tight fit state, and a loose fit state.

[0057] As a preferred solution, various assembly states of industrial parts are set according to the actual usage scenarios of the industrial parts, and there can be multiple assembly states.

[0058] As a preferred solution, the independent unassembled state is a special case of the assembled state.

[0059] Select measuring points on the surface of industrial parts according to preset principles.

[0060] As a preferred solution, each measuring point on the surface of the industrial component is the load application point.

[0061] As a preferred solution, each measuring point on the surface of the industrial component is a key position point on the surface of the industrial component, such as a load-bearing part, a connection part, a vulnerable part, etc.

[0062] According to the preset principles, the attribute variables of the static load are adjusted and set multiple times, where the attribute variables include value, direction and loading duration, to obtain the static load of each test.

[0063] Each test static load is imported into the physical virtual simulation model of industrial parts, and each test static load is applied to each measuring point on the surface of the industrial parts in various assembly states. The simulation results of each measuring point on the surface of the industrial parts in various assembly states under the action of each test static load are extracted, and the mechanical response information of each measuring point on the surface of the industrial parts in various assembly states under the action of each test static load is obtained, wherein the mechanical response information includes displacement information, strain information and stress information.

[0064] As a preferred solution, when applying test static loads to various measuring points on the surface of industrial parts in various assembly states, the process is performed one by one in a set order, that is, after applying each test static load to a certain measuring point in turn, each test static load is applied to the next measuring point in turn.

[0065] Furthermore, the specific working process of the static load mechanical response analysis module also includes: according to the displacement information of each measuring point on the surface of the industrial parts in various assembly states under the action of each test static load, obtaining the displacement amount and displacement direction of each measuring point on the surface of the industrial parts in various assembly states under the action of each test static load, recording the displacement amount of each measuring point on the surface of the industrial parts in various assembly states under the action of each test static load as i represents the number of the i-th assembly state, i=1,2,3, j represents the number of the j-th measuring point, j=1,2,...,m, a represents the number of the a-th test static load, a=1,2,...,b.

[0066] In a specific embodiment, the displacement information of each measuring point on the surface of an industrial component under various assembly states under various test static loads is obtained through the displacement cloud diagram of each measuring point on the surface of an industrial component under various assembly states under various test static loads in a physical virtual simulation model.

[0067] Extract the mechanical properties related information of industrial parts design requirements stored in the database, obtain the displacement threshold of each measuring point on the surface of industrial parts under various assembly states under each test static load, and record it as

[0068] Set the influence weight factors corresponding to each displacement direction of each measuring point on the surface of industrial parts in various assembly states, and screen out the influence weight factors corresponding to the displacement direction of each measuring point on the surface of industrial parts in various assembly states under each test static load, which are recorded as

[0069] As a preferred solution, when the assembly state of the industrial component is an independent unassembled state, the direction of the test static load applied to the measuring point on the surface of the industrial component is the displacement direction of the measuring point on the surface of the industrial component under the action of the test static load.

[0070] By analyzing the formula Obtain the first evaluation factor of the mechanical properties of industrial parts in various assembly states under static load Where φ1 represents the correction coefficient of the preset first evaluation factor of mechanical properties, e represents the natural constant, and ε j Represents the preset weight factor of the jth measuring point,

[0071] Furthermore, the specific working process of the static load mechanical response analysis module also includes: according to the strain information of each measuring point on the surface of the industrial parts under various assembly states under the action of each test static load, the strain amount of each measuring point on the surface of the industrial parts under various assembly states under the action of each test static load is obtained, and recorded as

[0072] In a specific embodiment, the strain information of each measuring point on the surface of an industrial component under various assembly states under various test static loads is obtained through the strain cloud diagram of each measuring point on the surface of an industrial component under various assembly states under various test static loads in a physical virtual simulation model.

[0073] According to the mechanical properties related information required by the design of industrial parts, the strain thresholds of each measuring point on the surface of industrial parts under various assembly states under the action of each test static load are obtained and recorded as

[0074] A coordinate system is established with the strain as the horizontal coordinate and the load value as the vertical coordinate, and the load-deformation curves of each measuring point on the surface of industrial parts under various assembly states under static load are plotted. The minimum slope, average slope and maximum slope of the load-deformation curves of each measuring point on the surface of industrial parts under various assembly states under static load are further obtained, and they are recorded as

[0075] As a preferred solution, the load-deformation curves of each measuring point on the surface of industrial parts under various assembly states under static loads are drawn. The specific method is: a coordinate system is established with the strain as the horizontal coordinate and the load value as the vertical coordinate, and the corresponding data points are marked in the coordinate system according to the values ​​of each test static load applied to each measuring point on the surface of the industrial parts under various assembly states and the strain under each static load. The load-deformation curves of each measuring point on the surface of the industrial parts under various assembly states under static loads are drawn using the method of establishing a mathematical model.

[0076] As a preferred solution, the average slope of the load-deformation curve is obtained. The specific method is: select each data point on the load-deformation curve according to a preset principle, obtain the tangent slope at each data point on the load-deformation curve and calculate the average value to obtain the average slope of the load-deformation curve.

[0077] As a preferred solution, the load-deformation curve is a curve that describes the relationship between the load borne by an industrial component and the corresponding deformation when it is subjected to an external force.

[0078] Obtain the minimum slope, average slope and maximum slope of the reference load-deformation curve of each measuring point on the surface of industrial parts under various assembly states under static load, and record them as

[0079] As a preferred solution, the minimum slope, average slope and maximum slope of the reference load-deformation curve of each measuring point on the surface of an industrial component under various assembly states under static load are obtained. The specific method is: according to the mechanical properties related information required by the design requirements of the industrial component, the reference load-deformation curve of each measuring point on the surface of an industrial component under various assembly states under static load is obtained, and the minimum slope, average slope and maximum slope of the reference load-deformation curve of each measuring point on the surface of an industrial component under various assembly states under static load are further obtained.

[0080] By analyzing the formula Obtain the degree of fit of the load-deformation curves of each measuring point on the surface of industrial parts under static load in various assembly states Wherein △k1, △k2, and △k3 represent the deviation thresholds of the minimum slope, average slope, and maximum slope between the preset load-deformation curve and the reference load-deformation curve, respectively.

[0081] By analyzing the formula Obtain the second evaluation factor of the mechanical properties of industrial parts in various assembly states under static load Where φ2 represents the correction coefficient of the preset second evaluation factor of mechanical properties.

[0082] Furthermore, the specific working process of the static load mechanical response analysis module also includes: according to the stress information of each measuring point on the surface of the industrial parts under various assembly states under the action of each test static load, the stress of each measuring point on the surface of the industrial parts under various assembly states under the action of each test static load is obtained, and the maximum stress that each measuring point on the surface of the industrial parts under various assembly states can withstand under the action of the static load is obtained, and it is recorded as

[0083] In a specific embodiment, stress information of each measuring point on the surface of an industrial component under various assembly states under various test static loads is obtained through stress cloud diagrams of each measuring point on the surface of an industrial component under various assembly states under various test static loads in a physical virtual simulation model.

[0084] A coordinate system is established with strain as the horizontal coordinate and stress as the vertical coordinate, and the stress-strain curves of each measuring point on the surface of industrial parts under static load in various assembly states are plotted.

[0085] As a preferred solution, stress-strain curves of various measuring points on the surface of industrial parts under various assembly states under static loads are drawn. The specific method is: a coordinate system is established with strain as the horizontal coordinate and stress as the vertical coordinate, and corresponding data points are marked in the coordinate system according to the strain and stress of various measuring points on the surface of industrial parts under various assembly states under the static loads of each test, and the stress-strain curves of various measuring points on the surface of industrial parts under various assembly states under static loads are drawn using the method of establishing a mathematical model.

[0086] According to the mechanical properties information required by the design of industrial parts, the allowable stress of each measuring point on the surface of industrial parts under static load in various assembly states is obtained and recorded as F ij , and obtain the reference stress-strain curves of each measuring point on the surface of industrial parts under static load in various assembly states.

[0087] As a preferred solution, the stress-strain curve is a curve that represents the relationship between the stress generated inside an industrial component and the corresponding strain when an external force acts on it.

[0088] Obtain the degree of coincidence between the stress-strain curve of each measuring point on the surface of industrial parts under static load and the reference stress-strain curve in various assembly states, which is recorded as γ ij .

[0089] As a preferred solution, the stress-strain curves of each measuring point on the surface of industrial parts under various assembly states under static load are fitted with the reference stress-strain curve to obtain the degree of overlap between the stress-strain curves of each measuring point on the surface of industrial parts under various assembly states under static load and the reference stress-strain curve.

[0090] By analyzing the formula Obtain the third evaluation factor of the mechanical properties of industrial parts in various assembly states under static load Where φ3 represents the correction coefficient of the preset third evaluation factor of mechanical properties.

[0091] Furthermore, the specific working process of the static load mechanical response analysis module also includes: calculating the weighted average of the first evaluation factor, the second evaluation factor, and the third evaluation factor of the mechanical properties of industrial parts in various assembly states under static load, and obtaining the mechanical properties evaluation coefficient of industrial parts in various assembly states under static load.

[0092] As a preferred solution, the weights of the first evaluation factor, the second evaluation factor, and the third evaluation factor of the mechanical property are set values, and the cumulative sum is 1.

[0093] The dynamic load mechanical response analysis module is used to obtain the mechanical response information of each measuring point on the surface of industrial parts in various assembly states under the action of various test dynamic loads, and analyze the mechanical performance evaluation coefficients of industrial parts in various assembly states under the action of dynamic loads.

[0094] Furthermore, the specific working process of the dynamic load mechanical response analysis module is: according to the preset principles, the attribute variables of the dynamic load are adjusted and set multiple times, wherein the attribute variables include value, direction and loading duration, to obtain each test dynamic load.

[0095] The test dynamic loads are introduced into the physical virtual simulation model of industrial parts to obtain the displacement information, stress information and strain information of each measuring point on the surface of industrial parts in various assembly states under the action of each test dynamic load, and further analyze the mechanical performance evaluation coefficients of industrial parts in various assembly states under the action of dynamic loads.

[0096] As a preferred solution, the method for analyzing the mechanical performance evaluation coefficients of industrial parts in various assembly states under dynamic loads is based on the same principle as the method for analyzing the mechanical performance evaluation coefficients of industrial parts in various assembly states under static loads.

[0097] The cyclic load mechanical response analysis module is used to obtain the mechanical response information of each measuring point on the surface of industrial parts in various assembly states under each test cyclic load, and analyze the mechanical performance evaluation coefficients of industrial parts in various assembly states under cyclic load.

[0098] Furthermore, the specific working process of the cyclic load mechanical response analysis module is: according to the preset principles, the attribute variables of the cyclic load are adjusted and set multiple times, wherein the attribute variables include value, direction, loading duration and frequency, to obtain each test cyclic load.

[0099] Each test cycle load is imported into the physical virtual simulation model of industrial parts to obtain the displacement information, stress information and strain information of each measuring point on the surface of industrial parts in various assembly states under each test cycle load, and further analyze the mechanical performance evaluation coefficients of industrial parts in various assembly states under cyclic loads.

[0100] As a preferred solution, the method for analyzing the mechanical performance evaluation coefficients of industrial parts in various assembly states under cyclic loads is based on the same principle as the method for analyzing the mechanical performance evaluation coefficients of industrial parts in various assembly states under static loads.

[0101] The mechanical detection test result feedback module is used to analyze the comprehensive evaluation index of the mechanical properties of industrial parts in various assembly states according to the mechanical property evaluation coefficients of industrial parts in various assembly states under static load, dynamic load and cyclic load, and provide feedback.

[0102] Furthermore, the specific working process of the mechanical detection test result feedback module is: weighted average calculation of the mechanical performance evaluation coefficients of industrial parts in various assembly states under static load, dynamic load and cyclic load is performed to obtain the comprehensive evaluation index of the mechanical properties of industrial parts in various assembly states.

[0103] As a preferred solution, the weights of the mechanical property evaluation coefficients under static load, dynamic load and cyclic load are set values, and the cumulative sum is 1.

[0104] The mechanical performance evaluation coefficients of industrial parts in various assembly states under static loads, dynamic loads and cyclic loads as well as the comprehensive evaluation index of mechanical performance of industrial parts in various assembly states are fed back.

[0105] The database is used to store information related to mechanical properties required for industrial component design.

[0106] It should be noted that the present invention detects the mechanical properties of industrial parts in an independent unassembled state, a tightly fitted state, and a loosely fitted state, and further evaluates their mechanical properties by integrating the mechanical properties in various assembly states, thereby enriching the diversity of detection dimensions and improving the reliability of mechanical property evaluation results.

[0107] It should be noted that the present invention detects the mechanical properties of industrial parts under static load, dynamic load and cyclic load, and further evaluates their mechanical properties by comprehensively analyzing the mechanical properties under various loads, thereby enriching the diversity of detection dimensions and improving the reliability of mechanical property evaluation results.

[0108] It should be noted that the present invention selects various measuring points on the surface of industrial parts and evaluates the mechanical properties according to the stress and strain at key positions on the surface of the industrial parts, thereby improving the reliability of the mechanical properties evaluation results.

[0109] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. A mechanical detection test analysis system based on physical virtual simulation, characterized in that: include: Physical virtual simulation model building module: used to obtain the geometric data, material property data and assembly relationship data of industrial parts, and build physical virtual simulation models of industrial parts using computer technology and virtual reality technology; Mechanical response analysis module under static load: used to obtain the mechanical response information of each measuring point on the surface of industrial parts in various assembly states under various test static loads, where the mechanical response information includes displacement information, strain information and stress information, and analyze the mechanical performance evaluation coefficients of industrial parts in various assembly states under static loads; Mechanical response analysis module under dynamic load: used to obtain the mechanical response information of each measuring point on the surface of industrial parts under various assembly states under various test dynamic loads, and analyze the mechanical performance evaluation coefficients of industrial parts under various assembly states under dynamic loads; Mechanical response analysis module under cyclic load: used to obtain the mechanical response information of each measuring point on the surface of industrial parts in various assembly states under various test cyclic loads, and analyze the mechanical performance evaluation coefficients of industrial parts in various assembly states under cyclic loads; Mechanical testing test result feedback module: used to analyze the comprehensive evaluation index of mechanical properties of industrial parts in various assembly states according to the mechanical properties evaluation coefficients of industrial parts in various assembly states under static load, dynamic load and cyclic load, and provide feedback; Database: used to store information related to mechanical properties required for industrial component design.

2. According to claim 1, a physical virtual simulation mechanical detection test analysis system is characterized by: The specific working process of the physical virtual simulation model construction module is as follows: Acquire geometric data of industrial parts, where the geometric data includes geometric shape and size information; Obtain material property data of industrial parts, including density, elastic modulus, Poisson's ratio, and thermal expansion coefficient; Acquire assembly relationship data of industrial parts, wherein the assembly relationship data includes assembly relationship data of each component in the industrial parts and assembly relationship data between the industrial parts and other parts; Use computer technology and virtual reality technology to build physical virtual simulation models of industrial parts.

3. The physical virtual simulation mechanical detection test analysis system according to claim 1 is characterized by: The specific working process of the static load mechanical response analysis module includes: Set various assembly states of industrial parts, including independent unassembled state, tight fit state, and loose fit state; Select each measuring point on the surface of industrial parts according to the preset principles; According to the preset principles, the attribute variables of the static load are adjusted and set multiple times, wherein the attribute variables include value, direction and loading duration, to obtain the static load of each test; Each test static load is imported into the physical virtual simulation model of industrial parts, and each test static load is applied to each measuring point on the surface of the industrial parts in various assembly states. The simulation results of each measuring point on the surface of the industrial parts in various assembly states under the action of each test static load are extracted, and the mechanical response information of each measuring point on the surface of the industrial parts in various assembly states under the action of each test static load is obtained, wherein the mechanical response information includes displacement information, strain information and stress information.

4. The physical virtual simulation mechanical detection test analysis system according to claim 1 is characterized in that: The specific working process of the static load mechanical response analysis module also includes: According to the displacement information of each measuring point on the surface of industrial parts in various assembly states under the action of each test static load, the displacement amount and displacement direction of each measuring point on the surface of industrial parts in various assembly states under the action of each test static load are obtained, and the displacement amount of each measuring point on the surface of industrial parts in various assembly states under the action of each test static load is recorded as i represents the number of the i-th assembly state, i=1,2,3, j represents the number of the j-th measuring point, j=1,2,...,m, a represents the number of the a-th test static load, a=1,2,...,b; Extract the mechanical properties related information of industrial parts design requirements stored in the database, obtain the displacement threshold of each measuring point on the surface of industrial parts under various assembly states under each test static load, and record it as Set the influence weight factors corresponding to each displacement direction of each measuring point on the surface of industrial parts in various assembly states, and screen out the influence weight factors corresponding to the displacement direction of each measuring point on the surface of industrial parts in various assembly states under each test static load, which are recorded as By analyzing the formula Obtain the first evaluation factor of the mechanical properties of industrial parts in various assembly states under static load Where φ1 represents the correction coefficient of the preset first evaluation factor of mechanical properties, e represents the natural constant, and ε j Represents the preset weight factor of the jth measuring point, 5. The physical virtual simulation mechanical detection test analysis system according to claim 4 is characterized in that: The specific working process of the static load mechanical response analysis module also includes: According to the strain information of each measuring point on the surface of industrial parts under various assembly states under the action of each test static load, the strain amount of each measuring point on the surface of industrial parts under various assembly states under the action of each test static load is obtained and recorded as According to the mechanical properties related information required by the design of industrial parts, the strain thresholds of each measuring point on the surface of industrial parts under various assembly states under the action of each test static load are obtained and recorded as A coordinate system is established with the strain as the horizontal coordinate and the load value as the vertical coordinate, and the load-deformation curves of each measuring point on the surface of industrial parts under various assembly states under static load are plotted. The minimum slope, average slope and maximum slope of the load-deformation curves of each measuring point on the surface of industrial parts under various assembly states under static load are further obtained, and they are recorded as Obtain the minimum slope, average slope and maximum slope of the reference load-deformation curve of each measuring point on the surface of industrial parts under various assembly states under static load, and record them as By analyzing the formula Obtain the degree of fit of the load-deformation curves of each measuring point on the surface of industrial parts under static load in various assembly states Wherein △k1, △k2, and △k3 represent the deviation thresholds of the minimum slope, average slope, and maximum slope between the preset load-deformation curve and the reference load-deformation curve, respectively; By analyzing the formula Obtain the second evaluation factor of the mechanical properties of industrial parts in various assembly states under static load Where φ2 represents the correction coefficient of the preset second evaluation factor of mechanical properties.

6. The physical virtual simulation mechanical testing and analysis system according to claim 5 is characterized by: The specific working process of the static load mechanical response analysis module also includes: According to the stress information of each measuring point on the surface of industrial parts under various assembly states under the action of each test static load, the stress of each measuring point on the surface of industrial parts under various assembly states under the action of each test static load is obtained, and the maximum stress that each measuring point on the surface of industrial parts under various assembly states can withstand under the action of static load is obtained, which is recorded as A coordinate system is established with strain as the horizontal coordinate and stress as the vertical coordinate, and stress-strain curves of each measuring point on the surface of industrial parts under various assembly states under static load are drawn; According to the mechanical properties information required by the design of industrial parts, the allowable stress of each measuring point on the surface of industrial parts under static load in various assembly states is obtained and recorded as F ij , and obtain the reference stress-strain curves of each measuring point on the surface of industrial parts under various assembly states under static load; Obtain the degree of coincidence between the stress-strain curve of each measuring point on the surface of industrial parts under static load and the reference stress-strain curve in various assembly states, which is recorded as γ ij ; By analyzing the formula Obtain the third evaluation factor of the mechanical properties of industrial parts in various assembly states under static load Where φ3 represents the correction coefficient of the preset third evaluation factor of mechanical properties.

7. The physical virtual simulation mechanical testing and analysis system according to claim 6 is characterized by: The specific working process of the static load mechanical response analysis module also includes: The weighted average values ​​of the first evaluation factor, the second evaluation factor and the third evaluation factor of the mechanical properties of industrial parts in various assembly states under static load are calculated to obtain the mechanical properties evaluation coefficients of industrial parts in various assembly states under static load.

8. The physical virtual simulation mechanical detection test analysis system according to claim 7 is characterized by: The specific working process of the dynamic load mechanical response analysis module is as follows: According to the preset principles, the attribute variables of the dynamic load are adjusted and set multiple times, wherein the attribute variables include value, direction and loading duration, to obtain the dynamic loads of each test; The test dynamic loads are introduced into the physical virtual simulation model of industrial parts to obtain the displacement information, stress information and strain information of each measuring point on the surface of industrial parts in various assembly states under the action of each test dynamic load, and further analyze the mechanical performance evaluation coefficients of industrial parts in various assembly states under the action of dynamic loads.

9. The physical virtual simulation mechanical detection test analysis system according to claim 7 is characterized by: The specific working process of the cyclic load mechanical response analysis module is as follows: According to the preset principles, the attribute variables of the cyclic load are adjusted and set multiple times, wherein the attribute variables include value, direction, loading duration and frequency, and each test cyclic load is obtained; Each test cycle load is imported into the physical virtual simulation model of industrial parts to obtain the displacement information, stress information and strain information of each measuring point on the surface of industrial parts in various assembly states under each test cycle load, and further analyze the mechanical performance evaluation coefficients of industrial parts in various assembly states under cyclic loads.

10. The physical virtual simulation mechanical detection test analysis system according to claim 1 is characterized by: The specific working process of the mechanical detection test result feedback module is as follows: The weighted average value of the mechanical performance evaluation coefficients of industrial parts in various assembly states under static load, dynamic load and cyclic load is calculated to obtain the comprehensive evaluation index of the mechanical performance of industrial parts in various assembly states; The mechanical performance evaluation coefficients of industrial parts in various assembly states under static loads, dynamic loads and cyclic loads as well as the comprehensive evaluation index of mechanical performance of industrial parts in various assembly states are fed back.

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