Metal part performance optimization method and system based on stress parameters, and storage medium

Abstract

The application discloses a metal part performance optimization method and system based on stress parameters and a storage medium, relates to the technical field of metal structure optimization, and comprises the following steps: stress detection is performed on a metal part to obtain test stress points of the metal part; all the test stress points are tested respectively to obtain pressure bearing values, target pressure values and other partial pressure values of the test stress points; the pressure bearing values, the target pressure values and the other partial pressure values are analyzed to obtain pressure bearing strengths of all the test stress points; and based on the pressure bearing strengths of all the test stress points, an optimization point is obtained through analysis and optimization. The application is used to solve the problem that, in the prior art, when a metal part is optimized, the structure design of the metal part is not verified based on stress parameters, which may lead to the problem that, due to design errors, the structure strength of the metal part is insufficient in the use process.

Description

Technical Field

[0001] The present invention relates to the technical field of metal structure optimization, and in particular to a method, system and storage medium for optimizing metal part performance based on stress parameters. Background Art

[0002] The stress of metal parts refers to the internal stress generated inside the metal parts when they are subjected to external forces. During the manufacturing process, residual stress will be generated inside the metal parts due to temperature changes and uneven cooling. During use, metal parts are subjected to various loads, which will also generate corresponding stress. The stress borne by metal parts directly or indirectly affects the structural strength of the metal parts.

[0003] In the prior art, when optimizing and eliminating stress in the structure of metal parts, heat treatment is often used. For example, in the application document with publication number CN114021339A, a data-driven performance optimization method for thin-walled metal parts is disclosed. The scheme is to pre-strain the metal sample and record the strain field change of the sample; bake the pre-strained metal sample according to a certain temperature curve; test to obtain comprehensive mechanical properties of the original plate and the performance data of the plate after pre-strain baking, and conduct comparative analysis to obtain the mechanical performance parameters and material models of the two; based on the material-level mechanical properties and material models before and after pre-strain baking hardening, according to the service According to the service requirements, simulation verification is carried out on the original parts and the parts after pre-strain baking treatment, and the influence of the change of material properties on the structural performance is compared; according to the simulation results and design requirements, the thickness, strength level and manufacturing process parameters of the metal plate are determined; the low-strength grade plate with the size determined by the simulation is used to cold stamp the parts, roll them to the predetermined strain, bake harden the whole part, and conduct performance experimental verification; this method releases the residual stress in the metal parts through heat treatment, and does not verify the structural design of the metal parts based on stress parameters, which may lead to the problem of insufficient structural strength of the metal parts due to overload during use due to design errors. Summary of the Invention

[0004] The present invention aims to solve, at least to a certain extent, one of the technical problems in the prior art. By performing force detection on metal parts and testing the force points, the compressive strength of the metal parts in all directions during use can be obtained. The force on the metal parts can be optimized based on the compressive strength to solve the problem in the prior art that, when optimizing metal parts, the structural design of the metal parts is not verified based on stress parameters, which can lead to insufficient structural strength of the metal parts due to overload during use due to design errors.

[0005] To achieve the above objectives, in a first aspect, the present application provides a method for optimizing metal part performance based on stress parameters, comprising the following steps:

[0006] Perform stress testing on metal parts to obtain the test stress points of the metal parts;

[0007] Test all test stress points separately to obtain the pressure value, target pressure value and other partial pressure values ​​of the test stress points;

[0008] Analyze the pressure value, target pressure value and other partial pressure values ​​to obtain the pressure strength of all test stress points;

[0009] Based on the compressive strength of all test stress points, the optimization points are analyzed and optimized.

[0010] Furthermore, the stress detection of the metal part to obtain the test stress point of the metal part includes the following sub-steps:

[0011] Mark the contact surface of metal parts during operation to obtain the universal stress surface;

[0012] Obtain the geometric center of gravity of the metal part, establish a three-dimensional coordinate system with the geometric center of gravity of the metal part as the origin, set the angle between the load-bearing surface on the positive z-axis and the positive x-axis as the positive load-bearing angle, and set the angle between the load-bearing surface on the negative z-axis and the positive x-axis as the negative load-bearing angle;

[0013] After deleting any one of the two universal load-bearing surfaces with the same positive universal load-bearing angle and negative universal load-bearing angle, regularizing the remaining universal load-bearing surfaces to obtain multiple different load-bearing surfaces;

[0014] The force-bearing surface regularization includes: setting the force-bearing surface with a positive or negative flooding angle greater than or equal to a right angle and less than a straight angle as the left force-bearing surface, setting the force-bearing surface with a positive or negative flooding angle less than a right angle as the right force-bearing surface, setting the force-bearing surface with a positive flooding angle equal to a straight angle as the upper force-bearing surface, and setting the force-bearing surface with a negative flooding angle equal to a straight angle as the lower force-bearing surface;

[0015] The force points on the force surface are collected to obtain the upper force point, the lower force point, the left force point and the right force point, which are collectively referred to as the test force points;

[0016] The force point set includes connecting all the same force-bearing surfaces to obtain the same force-bearing body, and setting the geometric center of the same force-bearing body as the same force point.

[0017] Furthermore, the step of testing all the test stress points respectively to obtain the pressure bearing values ​​and partial pressure values ​​of all the test stress points includes the following sub-steps:

[0018] A pressure sensor is set at each test stress point;

[0019] Conduct overall pressure tests on the test stress points respectively to obtain the pressure bearing value;

[0020] Independent pressure tests are performed on each stress point to obtain the target pressure value and other partial pressure values.

[0021] Furthermore, the overall pressure test includes: for any test stress point, setting the direction perpendicular to the pressure surface where the test stress point is located as the pressure direction,

[0022] At the same time, a pressure with a first intensity is applied to all test stress points in the pressure direction, and the readings of all pressure sensors at this time are obtained and recorded as pressure values ​​P1 to P4.

[0023] Furthermore, the independent pressure test includes a first independent pressure test and a second independent pressure test, wherein the first independent pressure test includes: setting any force point as a target force point, applying pressure in a direction as a pressure direction and a first intensity to the target force point, setting the indication of the pressure sensor of the target force point to a point pressure value F0, and setting the indications of the pressure sensors of the other force points to point partial pressure values ​​Ff1 to point partial pressure values ​​Ff3;

[0024] The second independent pressure test includes obtaining any two stress points, setting them as a target stress group, and simultaneously applying pressure in a direction that is a pressure direction and with a first intensity to the two stress points in the target stress group, setting the sum of the readings of the pressure sensors of the target stress group at this time as the group pressure value K0, and setting the sum of the readings of the pressure sensors of the other stress points as the group pressure value Kf;

[0025] The point pressure values ​​and group pressure values ​​are collectively referred to as target pressure values, and the point partial pressure values ​​and group partial pressure values ​​are collectively referred to as other partial pressure values.

[0026] Furthermore, the analysis of the pressure value, target pressure value and other partial pressure values ​​to obtain the pressure strength of all test stress points includes the following sub-steps:

[0027] The ratio of the bearing pressure value of all test stress points to the first strength is set as the bearing pressure weight;

[0028] Substitute the bearing weight, point pressure value, and the point pressure distribution value of any stress point relative to other target points into the individual bearing strength formula M = A × (F0 + Ff1 + Ff2 + Ff3) to calculate the individual bearing strength of the stress point, where M is the individual bearing strength of the stress point, A is the bearing weight of the stress point, F0 is the point pressure value, and Ff1, Ff2, and Ff3 are the point pressure distribution values ​​of the point relative to other target points.

[0029] Substitute the two bearing weights, group pressure value and the group pressure value of any force group relative to other force groups into the group bearing strength formula The group bearing strength of the force group is calculated, where L is the group bearing strength of the force group, A1 and A2 are the two pressure weights of the force group, K0 is the group pressure value, and Kf1, Kf2, Kf3, Kf4, Kf5 and Kf6 are the group pressure values ​​of the group relative to other force groups.

[0030] Furthermore, the analysis of the compressive strength of all the tested stress points to obtain the optimal point and perform the optimization includes the following sub-steps:

[0031] Obtaining a load-bearing distribution graph using a coordinate method, wherein the load-bearing distribution graph includes a single load-bearing graph and a load-bearing group load-bearing graph;

[0032] The coordinate method includes: establishing a plane rectangular coordinate system, drawing a regular quadrilateral with the coordinate origin as the center, recording the four vertices of the regular quadrilateral as points 1 to 4 in sequence, connecting the coordinate origin with points 1 to 4 respectively to obtain four line segments; taking points on the four line segments whose distance from the coordinate origin is the bearing strength to obtain points D1 to D4, connecting D1 to D4 respectively, and recording the obtained quadrilateral as a bearing distribution graph,

[0033] The point closest to the coordinate origin on the individual load-bearing distribution graph is set as the lowest individual load-bearing strength, and the two endpoints of the lowest individual load-bearing strength are set as the lowest load-bearing group;

[0034] The force points included in the lowest load-bearing group are set as optimized points, and the force-bearing surface where the optimized point is located is plane-adjusted. The plane-adjustment includes, for any force-bearing surface, expanding the force-bearing surface in any direction to the original first proportion to obtain the optimized force-bearing surface;

[0035] The geometric center of the optimized stress-bearing surface is set as the optimized stress point, and the optimized stress point is used for testing and analysis to obtain the compressive strength of all the test stress points after optimization. The load-bearing graph of the stress group is obtained using the coordinate method, and the distance between the geometric center of the load-bearing graph of the stress group and the origin is set as the optimization progress; when the optimization progress is greater than the standard progress, the plane adjustment is repeated, and when the optimization progress is less than or equal to the standard progress, the optimization is stopped.

[0036] In a second aspect, the present invention provides a metal part performance optimization system based on stress parameters, which is used to implement any of the above-mentioned metal part performance optimization methods based on stress parameters. The system includes a force acquisition module, a force analysis module, and a structure optimization module;

[0037] The force collection module includes a force collection unit and a force testing unit. The force collection unit is used to collect the force surface and force points of the metal parts. The force testing unit is used to perform force tests on the force points to obtain the pressure value, target pressure value and other partial pressure values ​​of the test force points; the force analysis module is used to analyze the pressure value, target pressure value and other partial pressure values ​​to obtain the pressure strength of all test force points; the structural optimization module optimizes the pressure of the metal parts based on the pressure strength of the force points.

[0038] Beneficial effects of the present invention: The present invention first marks the contact surface of the metal part during operation to obtain the universal stress surface of the metal part, and then integrates and simplifies the universal stress surface of the metal part to obtain test stress points in four different directions of the metal part. By simplifying the universal stress surface, the amount of data calculation is greatly reduced, and the efficiency of metal part optimization is improved;

[0039] The present invention also tests the test stress point to obtain the pressure value, target pressure value and other partial pressure values ​​of the test stress point, and then obtains the individual load-bearing strength and group load-bearing strength by analyzing the pressure value, target pressure value and other partial pressure values ​​of the test stress point. Among them, the individual load-bearing strength can reflect the load-bearing of the test stress point during the working process, and the group load-bearing strength can reflect the load-bearing relationship between any two test stress points. By obtaining the load-bearing and load-bearing relationship, data support is provided for the subsequent search for optimization points. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a flow chart of the steps of the method of the present invention;

[0041] Figure 2 is a schematic diagram of the load-bearing distribution pattern of the present invention;

[0042] Figure 3 It is a principle block diagram of the system of the present invention;

[0043] Figure 4 Schematic diagram of the structure of the electronic device of the present invention. DETAILED DESCRIPTION

[0044] With reference to the accompanying drawings on which embodiments of the application are illustrated, the technical solutions in the embodiments of the application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments of the application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the application.

[0045] Embodiment 1, please refer to Figure 1 As shown in the figure, the application provides a metal part performance optimization method based on stress parameters, including the following steps:

[0046] S1: stress detection is performed on the metal part to obtain test stress points of the metal part; step S1 includes the following sub-steps:

[0047] S101: mark the contact surface of the metal part in operation to obtain a general stress surface;

[0048] S102: obtain the geometric center of the metal part, establish a three-dimensional coordinate system with the geometric center of the metal part as the origin, set the included angle between the general stress surface on the positive z-axis and the positive direction of the x-axis as a positive general stress angle, and set the included angle between the general stress surface on the negative z-axis and the positive direction of the x-axis as a negative general stress angle;

[0049] S103: delete any one of the two general stress surfaces with the same positive general stress angle and negative general stress angle, and then perform stress surface regularization on the remaining general stress surfaces to obtain a plurality of different stress surfaces;

[0050] The stress surface regularization includes: setting the general stress surface with a positive general stress angle or a negative general stress angle greater than or equal to a right angle and less than a straight angle as a left stress surface, setting the general stress surface with a positive general stress angle or a negative general stress angle less than a right angle as a right stress surface, setting the stress surface with a positive general stress angle equal to a straight angle as an upper stress surface, and setting the stress surface with a negative general stress angle equal to a straight angle as a lower stress surface; in the specific implementation process, the irregular shape of the metal part leads to multiple stress directions, and by regularizing the stress surfaces in different directions of the metal part, all stress directions can be represented and subsequent data processing can be simplified;

[0051] S104: stress point collection is performed on the stress surface to obtain upper stress points, lower stress points, left stress points, and right stress points, which are collectively referred to as test stress points;

[0052] The stress point collection includes connecting all the same stress surfaces to obtain a same stress body, and setting the geometric center of the same stress body as a same stress point;

[0053] In the specific implementation process, for example, if four upper force-bearing surfaces are obtained, then these four upper force-bearing surfaces are the same type of force-bearing surfaces. The geometric body obtained by connecting these four upper force-bearing surfaces is set as the upper force-bearing body, and the geometric center of the upper force-bearing body is set as the upper force point.

[0054] S2: Test all test stress points respectively to obtain the pressure value, target pressure value and other partial pressure values ​​of the test stress points; step S2 includes the following sub-steps:

[0055] S201: installing a pressure sensor at each test stress point; in a specific implementation, when the test stress point is inside a metal part, cutting the metal part so that the test stress point is on a cross section;

[0056] S202: Performing an overall pressure test on each test stress point to obtain a pressure value; the overall pressure test includes: for any test stress point, setting the direction perpendicular to the pressure surface where the test stress point is located as the pressure direction,

[0057] At the same time, a pressure with a first intensity is applied to all test stress points in the direction of pressure. The readings of all pressure sensors at this time are obtained and recorded as pressure values ​​P1 to P4. In the specific implementation process, the first intensity is set manually. For example, in an overall pressure test, the first intensity is 20N. The readings of all pressure sensors at this time are obtained, and the obtained pressure values ​​P1 to P4 are 30N, 10N, 25N and 15N respectively.

[0058] S203: Perform independent pressure tests on the stress points respectively to obtain target pressure values ​​and other partial pressure values; the independent pressure tests include a first independent pressure test and a second independent pressure test, and the first independent pressure test includes: setting any stress point as a target stress point, applying pressure in a direction as a pressure direction and with a first intensity to the target stress point, setting the indication of the pressure sensor of the target stress point to the point pressure value F0, and setting the indications of the pressure sensors of the other stress points to the point partial pressure values ​​Ff1 to the point partial pressure values ​​Ff3; in the specific implementation process, when pressure is applied to the target stress point, the other stress points remain unchanged, and the force shared by the other stress points from the target stress point can be obtained. For example, in a first independent pressure test, the point pressure value F0 obtained is 15N, and the indications of the pressure sensors of the other stress points are set to the point partial pressure values ​​Ff1 to the point partial pressure values ​​Ff3 as 1N, 3N and 2N respectively;

[0059] The second independent pressure test includes obtaining any two force-bearing points, setting them as a target force group, and simultaneously applying a pressure in a direction that is a pressure direction and with a first intensity to each of the two force-bearing points in the target force group. The sum of the readings of the pressure sensors of the target force group at this time is set as the group pressure value K0, and the sum of the readings of the pressure sensors of the other force-bearing points is set as the group pressure value Kf. In a specific implementation process, for example, in a second independent pressure test, the obtained group pressure value K0 is 30N, and the group pressure value Kf is 10N.

[0060] Point pressure values ​​and group pressure values ​​are collectively referred to as target pressure values, and point partial pressure values ​​and group partial pressure values ​​are collectively referred to as other partial pressure values.

[0061] S3: Analyze the pressure value, target pressure value and other partial pressure values ​​to obtain the pressure strength of all test stress points; step S3 includes the following sub-steps:

[0062] S301: setting the ratio of the pressure values ​​of all test stress points to the first strength as the pressure weight;

[0063] S302: Substitute the pressure weight, point pressure value, and point pressure distribution values ​​of any stress point relative to other target points into the individual load-bearing strength formula M=A×(F0+Ff1+Ff2+Ff3) to calculate the individual load-bearing strength of the stress point, where M is the individual load-bearing strength of the stress point, A is the pressure weight of the stress point, F0 is the point pressure value, and Ff1, Ff2, and Ff3 are the point pressure distribution values ​​of the point relative to other target points. In a specific implementation, for example, if the pressure weight of any stress point is 0.5, the point pressure value F0 is 15, and the point pressure distribution values ​​Ff1, Ff2, and Ff3 of the point relative to other target points are 2N, 8N, and 5N, respectively, then the individual load-bearing strength of the stress point is calculated to be 15N.

[0064] Substitute the two bearing weights, group pressure value and the group pressure value of any force group relative to other force groups into the group bearing strength formula , the group bearing strength of the stress group is calculated, wherein L is the group bearing strength of the stress group, A1 and A2 are the two pressure weights of the stress group, K0 is the group pressure value, Kf1, Kf2, Kf3, Kf4, Kf5 and Kf6 are the group pressure values ​​of the group relative to other stress groups, respectively. In the specific implementation process, for example, the two pressure weights A1 and A2 of any stress group are 0.5 and 0.75 respectively, the group pressure value is 30N, and the group pressure values ​​Kf1, Kf2, Kf3, Kf4, Kf5 and Kf6 of the group relative to other stress groups are 10N, 8N, 15N, 12N, 5N and 10N respectively. The group bearing strength of the stress group is calculated to be 37.5N.

[0065] S4: based on the bearing strength of all test stress points, the optimization point is analyzed and optimized; step S4 includes the following sub-steps:

[0066] S401: using the coordinate method to obtain the bearing distribution graph, the bearing distribution graph includes the individual bearing graph and the stress group bearing graph;

[0067] Please refer to Figure 2 As shown in the figure, the coordinate method includes: establishing a plane rectangular coordinate system, taking a square as the center, and connecting the four vertices of the square to get four line segments; take the point with a distance of bearing strength from the coordinate origin on the four line segments to get D1 to D4, and connect D1 to D4 to get a square, which is recorded as the bearing distribution graph;

[0068] S402: set the point closest to the coordinate origin on the individual bearing distribution graph as the lowest individual bearing strength, and set the two endpoints of the lowest individual bearing strength as the lowest bearing group; in the specific implementation process, for example Figure 2 As shown in the figure, the lowest individual bearing strength is between D1 and D4, so D1 and D4 are the lowest bearing group;

[0069] S403: set the stress points contained in the lowest bearing group as the optimization point, and perform plane adjustment on the stress surface where the optimization point is located, which includes expanding the stress surface to the first proportion of the original in any direction to obtain the optimized stress surface; in the specific implementation process, the first proportion is 1.1, and when the stress surface is a cross section, the corresponding stress surface is adjusted when the cross section is adjusted, so that the cross section is expanded to 1.1 times of the original in any direction;

[0070] S404: set the geometric center of the optimized stress surface as the optimized stress point, and use the optimized stress point for testing and analysis to obtain the bearing strength of all optimized test stress points, use the coordinate method to obtain the stress group bearing graph, and set the distance between the geometric center of the stress group bearing graph and the origin as the optimization progress; when the optimization progress is greater than the standard progress, repeat the plane adjustment, when the optimization progress is less than or equal to the standard progress, stop optimization; in the specific implementation process, the more uniform the stress in each direction, the closer the stress group bearing graph to the square, and the closer the geometric center of the stress group bearing graph to the origin, so the distance between the geometric center of the stress group bearing graph and the origin is set as the optimization progress, the standard progress is affected by the material of the metal part, for example, the standard progress in this embodiment is 1.

[0071] Embodiment 2, second aspect, please refer to Figure 3As shown, the present application also provides a metal parts performance optimization system based on stress parameters, the system includes a force acquisition module, a force analysis module and a structure optimization module;

[0072] The force collection module includes a force collection unit and a force testing unit. The force collection unit is configured with a force collection strategy. The force collection strategy includes marking the contact surface of the metal part during operation to obtain a universal force surface; obtaining the geometric center of gravity of the metal part, establishing a three-dimensional coordinate system with the geometric center of gravity of the metal part as the origin, setting the angle between the universal force surface on the positive axis of the z-axis and the positive direction of the x-axis as a positive universal force angle, and setting the angle between the universal force surface on the negative axis of the z-axis and the positive direction of the x-axis as a negative universal force angle; deleting any one of the two universal force surfaces with the same positive universal force angle and negative universal force angle, and then regularizing the remaining universal force surfaces to obtain multiple different force surfaces;

[0073] Regularization of the load-bearing surface includes: setting the load-bearing surface with a positive flood load angle or a negative flood load angle greater than or equal to a right angle and less than a straight angle as the left load-bearing surface, setting the load-bearing surface with a positive flood load angle or a negative flood load angle less than a right angle as the right load-bearing surface, setting the load-bearing surface with a positive flood load angle equal to a straight angle as the upper load-bearing surface, and setting the load-bearing surface with a negative flood load angle equal to a straight angle as the lower load-bearing surface;

[0074] The force points on the force surface are collected to obtain the upper force point, the lower force point, the left force point and the right force point. The upper force point, the lower force point, the left force point and the right force point are collectively referred to as the test force points;

[0075] The set of force points includes connecting all the same force-bearing surfaces to obtain the same force-bearing body, and setting the geometric center of the same force-bearing body as the same force point;

[0076] The force testing unit is equipped with a force testing strategy, which includes setting a pressure sensor at each test force point; performing an overall pressure test on each test force point to obtain a pressure value; the overall pressure test includes: for any test force point, setting the direction perpendicular to the pressure surface where the test force point is located as the pressure direction, and at the same time applying a pressure with a direction as the pressure direction and a first intensity to all test force points, obtaining the readings of all pressure sensors at this time, and recording them as pressure values ​​P1 to P4.

[0077] Performing independent pressure tests on each stress point to obtain a target pressure value and other partial pressure values; the independent pressure tests include a first independent pressure test and a second independent pressure test, the first independent pressure test including: setting any stress point as a target stress point, applying pressure in a direction that is a pressure direction and a first intensity to the target stress point, setting the indication of the pressure sensor at the target stress point to a point pressure value F0, and setting the indications of the pressure sensors at the other stress points to point partial pressure values ​​Ff1 to Ff3;

[0078] The second independent pressure test includes obtaining any two stress points and setting them as a target stress group. At the same time, a pressure in a direction of pressure and a first intensity is applied to each of the two stress points in the target stress group. The sum of the readings of the pressure sensors of the target stress group at this time is set as the group pressure value K0, and the sum of the readings of the pressure sensors of the other stress points is set as the group pressure value Kf.

[0079] Point pressure values ​​and group pressure values ​​are collectively referred to as target pressure values, and point partial pressure values ​​and group partial pressure values ​​are collectively referred to as other partial pressure values.

[0080] The stress analysis module is configured with a stress analysis strategy, which includes setting the ratio of the pressure value of all test stress points to the first strength as a pressure weight;

[0081] Substitute the bearing weight, point pressure value, and the point pressure distribution value of any stress point relative to other target points into the individual bearing strength formula M = A × (F0 + Ff1 + Ff2 + Ff3) to calculate the individual bearing strength of the stress point, where M is the individual bearing strength of the stress point, A is the bearing weight of the stress point, F0 is the point pressure value, and Ff1, Ff2, and Ff3 are the point pressure distribution values ​​of the point relative to other target points.

[0082] Substitute the two bearing weights, group pressure value and the group pressure value of any force group relative to other force groups into the group bearing strength formula , the group bearing strength of the force group is calculated, where L is the group bearing strength of the force group, A1 and A2 are the two pressure weights of the force group, K0 is the group pressure value, Kf1, Kf2, Kf3, Kf4, Kf5 and Kf6 are the group pressure values ​​of the group relative to other force groups respectively;

[0083] The structural optimization module is equipped with a structural optimization strategy, which includes using the coordinate method to obtain the load-bearing distribution diagram. The load-bearing distribution diagram includes a single load-bearing diagram and a load-bearing group load-bearing diagram.

[0084] The coordinate method includes: establishing a plane rectangular coordinate system, drawing a regular quadrilateral with the coordinate origin as the center, recording the four vertices of the regular quadrilateral as points 1 to 4 in sequence, connecting the coordinate origin with points 1 to 4 respectively to obtain four line segments; taking points on the four line segments whose distance from the coordinate origin is the load-bearing strength to obtain points D1 to D4, connecting D1 to D4 respectively, and recording the obtained quadrilateral as a load-bearing distribution graph;

[0085] The point closest to the coordinate origin on the individual load-bearing distribution graph is set as the lowest individual load-bearing strength, and the two endpoints of the lowest individual load-bearing strength are set as the lowest load-bearing group;

[0086] The stress points included in the lowest load-bearing group are set as optimization points, and the stress surface where the optimization point is located is plane-adjusted. The plane adjustment includes, for any stress surface, expanding the stress surface in any direction to the original first proportion to obtain the optimized stress surface;

[0087] The geometric center of the optimized stress-bearing surface is set as the optimized stress point, and the optimized stress point is used for testing and analysis to obtain the compressive strength of all the test stress points after optimization. The load-bearing graph of the stress group is obtained using the coordinate method, and the distance between the geometric center of the load-bearing graph of the stress group and the origin is set as the optimization progress; when the optimization progress is greater than the standard progress, the plane adjustment is repeated, and when the optimization progress is less than or equal to the standard progress, the optimization is stopped.

[0088] Example 3, please refer to Figure 4 As shown, Figure 4 The present invention provides a schematic structural diagram of an electronic device, which may include a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus. The memory stores computer-readable instructions, and the processor can call the instructions in the memory. When the computer-readable instructions are executed by the processor, the steps in the metal part performance optimization method based on stress parameters are executed to achieve the following functions: performing force testing on the metal part to obtain the test force points of the metal part; testing all the test force points separately to obtain the pressure values, target pressure values, and other partial pressure values ​​of the test force points; analyzing the pressure values, target pressure values, and other partial pressure values ​​to obtain the pressure strength of all the test force points; and analyzing the optimization points based on the pressure strength of all the test force points and performing optimization.

[0089] In addition, the logical instructions in the above-mentioned memory can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0090] Example 4. The present application also provides a computer program product, which includes a computer program stored on a computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the metal part performance optimization method based on stress parameters provided by the above methods, and the method includes: performing force detection on the metal part to obtain the test force points of the metal part; testing all the test force points separately to obtain the pressure value, target pressure value and other partial pressure values ​​of the test force points; analyzing the pressure value, target pressure value and other partial pressure values ​​to obtain the pressure strength of all the test force points; based on the pressure strength of all the test force points, analyzing the optimization points and optimizing them.

[0091] Example 5. The present application also provides a computer-readable storage medium. The present application provides a storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps in the metal part performance optimization method based on stress parameters are executed to achieve the following functions: perform force detection on the metal part to obtain the test force points of the metal part; test all the test force points separately to obtain the pressure value, target pressure value and other partial pressure values ​​of the test force points; analyze the pressure value, target pressure value and other partial pressure values ​​to obtain the pressure strength of all the test force points; based on the pressure strength of all the test force points, analyze the optimization points and perform optimization.

[0092] Through the description of the above embodiments, the embodiments of the present application can be provided as a method, a system or a computer program product. Based on such understanding, the above technical solutions can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in various embodiments or some parts of the embodiments.

[0093] In the embodiments provided by the present application, it should be understood that the disclosed system or method can be implemented in other manners. The embodiments described above are merely schematic, and should not be construed as limiting. For example, the division of the modules or the units is merely logical function division, and there can be other division manners in actual implementation. For example, a plurality of modules or units can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different modules can be indirect couplings or communication connections through some interfaces, and there can be electric, mechanical or other forms.

[0094] Finally, it should be noted that the above-mentioned embodiments are merely used to illustrate the technical solutions of the present application, rather than limit them; even if the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still make modifications to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features; and these modifications or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A metal parts performance optimization method based on stress parameters, characterized in that: The steps include: Perform stress testing on metal parts to obtain the test stress points of the metal parts; Test all test stress points separately to obtain the pressure value, target pressure value and other partial pressure values ​​of the test stress points; Analyze the pressure value, target pressure value and other partial pressure values ​​to obtain the pressure strength of all test stress points; Based on the compressive strength of all test stress points, the optimization points are analyzed and optimized; The method of testing all the test stress points respectively to obtain the pressure values ​​and partial pressure values ​​of all the test stress points includes the following sub-steps: A pressure sensor is set at each test stress point; Conduct overall pressure tests on the test stress points respectively to obtain the pressure bearing value; Conduct independent pressure tests on each stress point to obtain the target pressure value and other partial pressure values; The overall pressure test includes: for any test stress point, setting the direction perpendicular to the pressure surface where the test stress point is located as the pressure direction, Simultaneously, a pressure of a first intensity is applied to all test stress points in a direction that is a pressure direction, and the readings of all pressure sensors at this time are obtained and recorded as pressure values ​​P1 to P4; The independent pressure test includes a first independent pressure test and a second independent pressure test, wherein the first independent pressure test includes: setting any force point as a target force point, applying pressure in a direction as a pressure direction and a first intensity to the target force point, setting the indication of the pressure sensor at the target force point to a point pressure value F0, and setting the indications of the pressure sensors at other force points to point partial pressure values ​​Ff1 to Ff3; The second independent pressure test includes obtaining any two stress points, setting them as a target stress group, and simultaneously applying pressure in a direction that is a pressure direction and with a first intensity to the two stress points in the target stress group, setting the sum of the readings of the pressure sensors of the target stress group at this time as the group pressure value K0, and setting the sum of the readings of the pressure sensors of the other stress points as the group pressure value Kf; The point pressure values ​​and group pressure values ​​are collectively referred to as target pressure values, and the point partial pressure values ​​and group partial pressure values ​​are collectively referred to as other partial pressure values; Analyzing the pressure value, target pressure value and other partial pressure values ​​to obtain the pressure strength of all test stress points includes the following sub-steps: The ratio of the bearing pressure value of all test stress points to the first strength is set as the bearing pressure weight; Substitute the bearing weight, point pressure value and the point pressure value of any bearing point relative to other target points into the single bearing strength formula , the independent bearing strength of the stress point is calculated, where M is the independent bearing strength of the stress point, A is the pressure weight of the stress point, F0 is the point pressure value, and Ff1, Ff2 and Ff3 are the point pressure values ​​of the point relative to other target points; Substitute the two bearing weights, group pressure value and the group pressure value of any force group relative to other force groups into the group bearing strength formula , the group bearing strength of the force group is calculated, where L is the group bearing strength of the force group, A1 and A2 are the two pressure weights of the force group, K0 is the group pressure value, Kf1, Kf2, Kf3, Kf4, Kf5 and Kf6 are the group pressure values ​​of the group relative to other force groups respectively; The analysis of the compressive strength of all test stress points to obtain the optimization point and perform the optimization includes the following sub-steps: Obtaining a load-bearing distribution graph using a coordinate method, wherein the load-bearing distribution graph includes a single load-bearing graph and a load-bearing group load-bearing graph; The coordinate method includes: establishing a plane rectangular coordinate system, drawing a regular quadrilateral with the coordinate origin as the center, recording the four vertices of the regular quadrilateral as points 1 to 4 in sequence, connecting the coordinate origin with points 1 to 4 respectively to obtain four line segments; taking points on the four line segments whose distance from the coordinate origin is the bearing strength to obtain points D1 to D4, connecting D1 to D4 respectively, and recording the obtained quadrilateral as a bearing distribution graph, The point closest to the coordinate origin on the individual load-bearing distribution graph is set as the lowest individual load-bearing strength, and the two endpoints of the lowest individual load-bearing strength are set as the lowest load-bearing group; The force points included in the lowest load-bearing group are set as optimized points, and the force-bearing surface where the optimized point is located is plane-adjusted. The plane-adjustment includes, for any force-bearing surface, expanding the force-bearing surface in any direction to the original first proportion to obtain the optimized force-bearing surface; The geometric center of the optimized stress-bearing surface is set as the optimized stress point, and the optimized stress point is used for testing and analysis to obtain the compressive strength of all the test stress points after optimization. The load-bearing graph of the stress group is obtained using the coordinate method, and the distance between the geometric center of the load-bearing graph of the stress group and the origin is set as the optimization progress; when the optimization progress is greater than the standard progress, the plane adjustment is repeated, and when the optimization progress is less than or equal to the standard progress, the optimization is stopped.

2. The metal parts performance optimization method based on stress parameters according to claim 1, characterized in that: The stress detection of the metal parts to obtain the test stress points of the metal parts includes the following sub-steps: Mark the contact surface of metal parts during operation to obtain the universal stress surface; Obtain the geometric center of gravity of the metal part, establish a three-dimensional coordinate system with the geometric center of gravity of the metal part as the origin, set the angle between the load-bearing surface on the positive z-axis and the positive x-axis as the positive load-bearing angle, and set the angle between the load-bearing surface on the negative z-axis and the positive x-axis as the negative load-bearing angle; After deleting any one of the two universal load-bearing surfaces with the same positive universal load-bearing angle and negative universal load-bearing angle, regularizing the remaining universal load-bearing surfaces to obtain multiple different load-bearing surfaces; The force-bearing surface regularization includes: setting the force-bearing surface with a positive or negative flooding angle greater than or equal to a right angle and less than a straight angle as the left force-bearing surface, setting the force-bearing surface with a positive or negative flooding angle less than a right angle as the right force-bearing surface, setting the force-bearing surface with a positive flooding angle equal to a straight angle as the upper force-bearing surface, and setting the force-bearing surface with a negative flooding angle equal to a straight angle as the lower force-bearing surface; The force points on the force surface are collected to obtain the upper force point, the lower force point, the left force point and the right force point, which are collectively referred to as the test force points; The force point set includes connecting all the same force-bearing surfaces to obtain the same force-bearing body, and setting the geometric center of the same force-bearing body as the same force point.

3. A metal part performance optimization system based on stress parameters, used to implement the metal part performance optimization method based on stress parameters according to claim 1 or 2, characterized in that: The system includes a force acquisition module, a force analysis module and a structure optimization module; The force collection module includes a force collection unit and a force testing unit. The force collection unit is used to collect the force surfaces and force points of the metal parts. The force testing unit is used to perform force tests on the force points to obtain the pressure value, target pressure value and other partial pressure values ​​of the test force points. The stress analysis module is used to analyze the pressure value, target pressure value and other partial pressure values ​​to obtain the pressure strength of all test stress points; The structural optimization module optimizes the pressure bearing of metal parts based on the pressure bearing strength of the force bearing points.

4. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, the steps in the method according to claim 1 or 2 are executed.

5. A 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 claim 1 or 2 are executed.

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