A loss assessment method and device for a mechanical equipment, an electronic device, a medium and a product

Abstract

The application provides a method and device for determining the loss of a mechanical equipment, an electronic device, a medium and a product. According to an example of the application, the method can include: obtaining an actual three-dimensional model of the mechanical equipment; comparing a reference three-dimensional model and the actual three-dimensional model of the mechanical equipment to determine a deformed component of the mechanical equipment; performing material stress analysis on the deformed component to determine a collision parameter of the deformed component; and performing collision simulation analysis on the mechanical equipment based on the collision parameter to generate damage data of the deformed component, thereby comprehensively evaluating the shape and material of each component of the mechanical equipment and capturing the small deformation on the surface of the mechanical equipment and the damage of the internal structure, so as to improve the data accuracy and comprehensiveness of the determination of the loss of the mechanical equipment.

Description

Technical Field

[0001] This application relates to the field of damage assessment technology, and in particular to a method, apparatus, electronic device, medium and product for assessing damage to mechanical equipment. Background Technology

[0002] Mechanical equipment damage assessment refers to a comprehensive analysis of equipment with mechanical structures after a collision or accident. Through rigorous inspection and testing, combined with professional knowledge and systematic methods, it ensures accurate assessment and pricing of mechanical equipment damage.

[0003] Currently, the methods for assessing damage to machinery and equipment mainly rely on manual inspection, measurement, and judgment, resulting in low accuracy and incomplete data. For example, manual inspection may lead to judgment errors due to factors such as personal experience and skill level; during measurement, data deviations may occur due to insufficient equipment accuracy or improper operation; at the same time, manual inspection often struggles to accurately identify damage to complex structures or hidden parts. Summary of the Invention

[0004] To overcome the problems existing in related technologies, this application provides a method, apparatus, electronic device, medium, and product for assessing the damage of mechanical equipment.

[0005] According to a first aspect of any embodiment of this application, a method for assessing the damage of mechanical equipment is provided, the method comprising:

[0006] Obtain the actual 3D model of the mechanical equipment;

[0007] By comparing the reference 3D model of the mechanical equipment with the actual 3D model, the deformable components of the mechanical equipment are determined.

[0008] Material stress analysis is performed on the deformable component to determine its collision parameters;

[0009] Based on the collision parameters, a collision simulation analysis is performed on the mechanical equipment to generate damage data for the deformable components.

[0010] According to a second aspect of any embodiment of this application, a damage assessment device for mechanical equipment is provided, the device comprising:

[0011] The acquisition module is used to acquire the actual three-dimensional model of the mechanical equipment; the actual three-dimensional model is used to determine the deformable parts of the mechanical equipment and the collision parameters of the deformable parts, and to perform collision simulation analysis based on the collision parameters to generate damage data of the deformable parts.

[0012] According to a third aspect of any embodiment of this application, another damage assessment device for mechanical equipment is provided, the device comprising:

[0013] The comparison module is used to compare the reference 3D model of the mechanical equipment with the actual 3D model to determine the deformable parts of the mechanical equipment.

[0014] The analysis module is used to perform material stress analysis on the deformable component and determine the collision parameters of the deformable component;

[0015] The simulation module is used to perform collision simulation analysis on the mechanical equipment based on the collision parameters and generate damage data of the deformable parts.

[0016] According to a fourth aspect of any embodiment of this application, an electronic device is provided, comprising:

[0017] processor;

[0018] Memory used to store processor-executable instructions;

[0019] The processor executes the executable instructions to implement the method described in any embodiment of this application.

[0020] According to a fifth aspect of any embodiment of the present application, a computer-readable storage medium is provided having computer instructions stored thereon that, when executed by a processor, implement the method described in any of the embodiments of the present application described above.

[0021] According to a sixth aspect of any embodiment of this application, a computer program product is provided, having a computer program / instructions stored thereon, which, when executed by a processor, implement the method described in any of the embodiments of this application described above.

[0022] The technical solution provided in this application may include the following beneficial effects:

[0023] As can be seen from the above embodiments, by acquiring the actual three-dimensional model of the mechanical equipment, comparing the reference three-dimensional model and the actual three-dimensional model of the mechanical equipment, the deformable parts of the mechanical equipment are identified, the material stress analysis of the deformable parts is performed, the collision parameters of the deformable parts are determined, and based on the collision parameters, the mechanical equipment is subjected to collision simulation analysis to generate damage data of the deformable parts. By combining the three-dimensional model comparison and collision simulation analysis, the shape and material of each component of the mechanical equipment can be comprehensively evaluated. This can capture the minute deformations on the surface of the mechanical equipment and the damage to the internal structure, thereby improving the accuracy and comprehensiveness of the damage assessment data of the mechanical equipment.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this application, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] Figure 1 This is a flowchart illustrating a method for assessing the damage of mechanical equipment according to an exemplary embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the structure of a damage assessment system according to an exemplary embodiment of this application;

[0028] Figure 3 This is a flowchart illustrating another method for assessing the damage of mechanical equipment according to an exemplary embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the structure of an electronic device according to an exemplary embodiment of this application;

[0030] Figure 5 This is a block diagram of a damage assessment device for mechanical equipment according to an exemplary embodiment of this application;

[0031] Figure 6 This is a block diagram of another damage assessment device for mechanical equipment according to an exemplary embodiment of this application. Detailed Implementation

[0032] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0033] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0034] It should be understood that although the terms first, second, third, etc., may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0035] Currently, the damage assessment method for mechanical equipment is usually manual, which results in low accuracy and incomplete data.

[0036] To address the aforementioned problems, this application proposes a method for assessing the damage of mechanical equipment. The following embodiments are provided to further illustrate this application:

[0037] Please see Figure 1 , Figure 1 This is a flowchart illustrating a method for assessing the damage of mechanical equipment according to an exemplary embodiment of this application. The method can be executed by a damage assessment system, which can be deployed on electronic devices such as computers, tablets, mobile phones, digital broadcasting terminals, messaging devices, personal digital assistants, and servers. The method may include the following steps:

[0038] Step 102: Obtain the actual 3D model of the mechanical equipment.

[0039] In this step, the damage assessment system can use a 3D scanning device such as a scanner to perform a 3D scan on the mechanical equipment that has been involved in a collision or accident, and convert the scan data obtained from the 3D scan into an actual 3D model to obtain the actual 3D model of the mechanical equipment.

[0040] Mechanical equipment is equipment composed of mechanical parts, such as vehicles (cars, trucks, motorcycles, etc.), industrial machinery (such as machine tools, excavators, cranes, etc.), agricultural machinery (such as tractors, harvesters, etc.), and aerospace equipment (such as airplanes, rockets, etc.).

[0041] The actual 3D model is a 3D model obtained by scanning mechanical equipment with a high-precision 3D scanning device. It can reflect the actual damage and structure of the mechanical equipment after a collision. It is used to determine the deformable parts of the mechanical equipment and the collision parameters of the deformable parts, and to perform collision simulation analysis based on the collision parameters to generate damage data of the deformable parts.

[0042] The 3D scanning device has a tracking 3D scanning function. The 3D scanning device and the damage assessment system can be integrated into the same electronic device; for example, both can be integrated into a 3D scanner. Alternatively, the 3D scanning device and the damage assessment system can be applied to different electronic devices; for example, the 3D scanning device can be used in a 3D scanner, and the damage assessment system can be deployed on a server. This application does not impose any limitations on this, as long as the damage assessment system can obtain the actual 3D model of the mechanical equipment.

[0043] Step 104: Compare the reference 3D model of the mechanical equipment with the actual 3D model to determine the deformable parts of the mechanical equipment.

[0044] In this step, the damage assessment system obtains a reference 3D model of the mechanical equipment through computer-aided design (CAD) model import and other methods. The reference 3D model of the mechanical equipment is compared with the actual 3D model to determine the deformed parts of the mechanical equipment that have deformed.

[0045] Among them, the reference 3D model is the original 3D model of the mechanical equipment before the collision or during the design stage. It can be created in advance using CAD tools to reflect the theoretical shape, size and structure of the mechanical equipment, and serves as the basis for subsequent damage assessment and comparison.

[0046] Step 106: Perform material stress analysis on the deformable component to determine its collision parameters.

[0047] In this step, the damage assessment system performs material analysis on the deformed components to understand the material properties and mechanical performance of the mechanical equipment. Combining the shape and size of the deformed components, implicit, explicit, or hybrid finite element analysis methods are used to perform material stress analysis on the deformed components to determine their collision parameters.

[0048] Among them, collision parameters are parameters that describe the collision characteristics during the collision process of mechanical equipment. These parameters can include collision angle, collision speed, and collision force, and are used to simulate the collision process and assess the damage.

[0049] Step 108: Based on the collision parameters, perform collision simulation analysis on the mechanical equipment to generate damage data of deformable parts.

[0050] In this step, the damage assessment system uses Computer-Aided Engineering (CAE) tools to perform collision simulation analysis on the mechanical equipment based on the determined collision parameters. After the simulation analysis is completed, damage data of the deformed parts is generated. The damage assessment system can present the damage data in the form of charts, images, or animations, allowing damage assessors to intuitively understand the degree and extent of damage to the mechanical equipment.

[0051] Damage data is quantitative data on the damage caused to mechanical equipment during a collision, used to reflect damage such as deformation, fracture, and cracks in components.

[0052] In one embodiment, the damage data may include at least one of the following: deformation distribution data, mechanical loss data, and material damage data. The deformation distribution data describes the deformation of the mechanical equipment structure during the collision process, such as the deformation amount and direction of each deformable component.

[0053] Mechanical loss data is used to reflect the mechanical loads borne by the structure of mechanical equipment during a collision and the resulting energy loss, describing the mechanical response of the mechanical equipment structure in a collision, such as stress, strain, energy absorption, etc.

[0054] Material damage data is used to describe the damage to the structural materials of mechanical equipment during a collision, such as damage modes including plastic deformation, fracture, and crack propagation, as well as the degree and location of damage.

[0055] As mentioned above, by generating deformation distribution data, the deformation of various components of mechanical equipment during the collision process can be displayed intuitively; by generating mechanical loss data, the energy transfer and loss during the collision process can be reflected; and by generating material damage data, the invisible material property damage of various components of mechanical equipment can be provided.

[0056] In one embodiment, damage data may include a damage chromatogram. A damage chromatogram is a visual representation of the damage to deformable components, displaying damage data in a color-coded format on the geometric model of the mechanical equipment structure. Different colors or color intensities can represent different degrees or types of damage, making the damage readily apparent.

[0057] As mentioned above, by generating a damage chromatogram, different colors or color intensities can be used to visually display the distribution, extent, and type of damage. This visual representation can quickly capture key information about the damage to mechanical equipment without the need for complex data analysis or interpretation.

[0058] In one embodiment, the damage assessment system, based on the generated damage data, retrieves damage assessment rules matching the damage data from a rule database. According to the matching damage assessment rules, it performs in-depth analysis of the damage data to determine the degree of deformation, lifespan changes, and maintenance recommendations for the deformed component. The damage assessment results are conclusions drawn from the damage data and damage assessment rules regarding the damage condition of the deformed component.

[0059] For example, the damage assessment system can evaluate the degree of deformation of deformed parts, assess the life changes of deformed parts, and predict potential failure points based on the retrieved matching damage assessment rules, and determine the degree of deformation, life changes, and maintenance recommendations of deformed parts, etc.

[0060] The damage assessment system generates a damage report based on damage data and damage assessment results. The damage report may include basic information about the mechanical equipment, damage data of each deformed component, and corresponding damage assessment results.

[0061] The rule database is a database that pre-stores a large number of damage assessment rules. These rules are formulated based on factors such as the structural characteristics, material properties, and historical damage data of mechanical equipment, and are used to assess the damage of deformable parts of the mechanical equipment.

[0062] It is understood that the rule database and the damage assessment system can be integrated into the same electronic device, or the rule database and the damage assessment system can be applied to different electronic devices. This application does not limit this.

[0063] As described above, by retrieving damage determination rules that match the damage data from the rule database, the damage determination results of deformable parts can be determined in a more standardized manner based on the damage determination rules. Based on the damage data and the damage determination results, a damage report for the mechanical equipment can be generated, making the damage report more objective, fair, and comprehensive.

[0064] The damage assessment method for mechanical equipment in this embodiment obtains the actual three-dimensional model of the mechanical equipment, compares the reference three-dimensional model and the actual three-dimensional model to identify the deformable parts of the mechanical equipment, performs material stress analysis on the deformable parts to determine the collision parameters of the deformable parts, performs collision simulation analysis on the mechanical equipment based on the collision parameters, generates damage data of the deformable parts, and combines three-dimensional model comparison and collision simulation analysis to comprehensively evaluate the shape and material of each component of the mechanical equipment. This method can capture minute deformations on the surface of the mechanical equipment and damage to the internal structure, thereby improving the accuracy and comprehensiveness of the damage assessment data for mechanical equipment.

[0065] Furthermore, fully quantified damage data can more accurately reflect the degree of damage to various components of mechanical equipment, helping to reduce errors caused by subjective judgment or lack of experience, and improving the professionalism and credibility of damage assessment.

[0066] The foregoing embodiments described how damage data for various deformable components in mechanical equipment is automatically generated through 3D model comparison, material stress analysis, and collision simulation analysis. The following embodiments will provide a more detailed description of the damage assessment process for mechanical equipment, and can be applied to any of the above embodiments.

[0067] In one embodiment, the actual 3D model may include an actual point cloud model. The damage assessment system can obtain the actual point cloud model of the mechanical equipment by performing a 3D scan. The damage assessment system discretizes the reference 3D model of the mechanical equipment and converts it into a reference point cloud model.

[0068] The damage assessment system uses methods such as Iterative Closest Point (ICP) algorithm, weighted ICP algorithm, and deep learning method to stitch and align the reference point cloud model and the actual point cloud model, so that the reference point cloud model and the actual point cloud model are completely matched in spatial position.

[0069] By calculating the distance and angle changes between each corresponding point or edge in the reference point cloud model and the actual point cloud model, the deformation regions in the actual point cloud model that are deformed relative to the reference point cloud model are identified. Based on the deformation regions and the structural information of the mechanical equipment, the deformable components corresponding to the deformation regions are determined.

[0070] The actual point cloud model is a model composed of three-dimensional point clouds obtained by scanning the mechanical equipment using three-dimensional scanning technology. These point clouds represent the specific locations on the surface of the mechanical equipment and are used to reflect the current three-dimensional shape and surface details of the mechanical equipment.

[0071] A reference point cloud model is a complete, undamaged 3D model of a mechanical device composed of 3D point clouds. It can include all structural information of the mechanical device and serves as a comparison benchmark. Deformed regions are areas in the actual point cloud model that exhibit significant shape changes relative to the reference point cloud model, reflecting parts of the mechanical device that have been impacted or damaged.

[0072] Structural information refers to the structural characteristics of mechanical equipment and detailed information about its components, such as the names, locations, shapes, dimensions, and connections between components.

[0073] As described above, by discretizing the reference 3D model and converting it into a reference point cloud model, and then stitching and aligning the reference point cloud model and the actual point cloud model to determine the deformed area, the accurate matching between the two models can be ensured, thereby improving the accuracy of deformed area identification. Based on the deformed area and the structural information of the mechanical equipment, the deformed components can be identified, which can improve the accuracy and reliability of deformed component identification.

[0074] In one embodiment, the damage assessment system establishes a stress model based on the geometry and material parameters of the deformable component, such as elastic modulus, yield strength, and fracture toughness. Using the stress model, combined with the physical and boundary conditions during the collision process, the collision parameters of the deformable component are calculated.

[0075] Among them, the stress model is used to simulate the stress distribution of deformable parts during the collision process, such as the magnitude, direction and distribution range of the stress.

[0076] Collision parameters may include at least one of the following: collision angle and collision force distribution. The collision angle is the relative angle between the colliding object and the deformable part, and the collision force distribution is the spatial distribution of the forces borne by the deformable part during the collision.

[0077] As described above, by establishing a stress model based on the geometry and material parameters of the deformable component, and using the stress model to calculate the collision parameters of the deformable component, the stress model can accurately simulate the stress distribution during the collision process, which helps to more accurately calculate the collision angle and collision force distribution of the deformable component, providing a reliable basis for subsequent simulation analysis.

[0078] In one embodiment, when the damage assessment system performs collision simulation analysis on mechanical equipment, it selects an appropriate element type, such as triangle, quadrilateral, tetrahedron or hexahedron, based on factors such as the geometry of the mechanical equipment structure, load distribution and solution accuracy, and divides the reference three-dimensional model into multiple interconnected elements to form a finite element model.

[0079] Based on the material parameters of each mechanical component, corresponding material properties are set for multiple elements in the finite element model. Collision parameters are applied as loads to the finite element model to simulate the external forces acting during a real collision. The finite element model is solved using methods such as direct methods and iterative methods to calculate the deformation, stress, strain, and energy absorption of each element, thus obtaining the damage data output by the finite element model.

[0080] The finite element model is a digital model for simulation analysis, composed of multiple interconnected elements, used to accurately simulate the deformation, stress distribution, and energy absorption characteristics of mechanical equipment during collisions.

[0081] Material parameters are data describing the physical and chemical properties of the materials used in various mechanical components. In collision simulation analysis of mechanical equipment, material parameters are used to define the corresponding material properties for the elements in the finite element model. These material properties determine the deformation behavior of the mechanical components under external forces.

[0082] As mentioned above, by dividing the reference 3D model into multiple interconnected units, the geometry and material properties of mechanical equipment can be simulated in greater detail, forming a finite element model. Based on the material parameters of each mechanical component in the mechanical equipment, the material properties of multiple units in the finite element model can be set, which can reflect the real mechanical behavior of each mechanical component during the collision process. The collision parameters are applied as loads to the finite element model to obtain the damage data output by the finite element model, which can simulate a more realistic collision scenario and thus obtain more accurate quantitative damage data.

[0083] In one embodiment, before performing material stress analysis on the deformable component, the damage assessment system calculates the actual deformation parameters of the deformable component, such as the deformation area and deformation amount, based on the comparison results between the reference three-dimensional model and the actual three-dimensional model.

[0084] When performing collision simulation analysis on mechanical equipment, the deformation difference between the simulated deformation parameters and the actual deformation parameters obtained from the simulation analysis is detected. If the deformation difference does not meet the convergence condition, the collision parameters are adjusted according to the simulated deformation parameters and the actual deformation parameters, and the collision simulation analysis is performed again using the new collision parameters to detect the deformation difference between the new simulated deformation parameters and the actual deformation parameters.

[0085] If the deformation difference still does not meet the convergence condition, it indicates that there is a large deviation between the simulation analysis results and the actual damage of the mechanical equipment. Continue to iterate and adjust the collision parameters and conduct collision simulation analysis until the latest deformation difference meets the convergence condition, and determine the final damage data.

[0086] Among them, the actual deformation parameters are the real deformation data of the deformable parts of the mechanical equipment. The actual deformation parameters are used to reflect the current actual damage situation of the mechanical equipment, such as: the volume, area, main direction of the deformation region, surface area data and normal of the mechanical equipment, and the deformable parts to which the deformation region belongs.

[0087] Simulated deformation parameters are the simulated deformation data of mechanical equipment during collision simulation analysis, used to reflect the damage of deformed components after the collision simulation analysis. Deformation difference is the difference between the actual deformation parameters and the simulated deformation parameters, used to reflect the degree of agreement between the simulation analysis and the actual damage.

[0088] The convergence condition is the condition under which the simulation analysis results are determined to be close enough to the actual damage when the deformation difference reaches a predetermined threshold or range, and the iterative simulation analysis can be stopped.

[0089] As described above, by comparing the reference 3D model and the actual 3D model, the actual deformation parameters of the deformable component are calculated, and the deformation difference between the simulated deformation parameters and the actual deformation parameters is detected. If the deformation difference does not meet the convergence condition, the collision parameters are iteratively adjusted and collision simulation analysis is performed. This can gradually approximate the actual deformation situation, making the simulated deformation parameters closer to the actual deformation parameters, until the latest deformation difference meets the convergence condition, thus determining the damage data that is closest to the real situation.

[0090] Please see Figure 2 , Figure 2 This is a schematic diagram illustrating the structure of a damage assessment system according to an exemplary embodiment of this application. The three-dimensional scanning device 20 includes a scanning module 201 and a robotic arm module 202.

[0091] The scanning module 201 can capture the shape, size and surface details of the mechanical equipment and perform high-precision scanning of the mechanical equipment. The robotic arm module 202 can adjust the angle and position of the scanning module 201.

[0092] The damage assessment system 21 can communicate with the 3D scanning device 20 to obtain the actual 3D model of the mechanical equipment scanned by the 3D scanning device 20.

[0093] The damage assessment system 21 can also communicate with the rule database 22, sending damage data to the rule database 22. The rule database 22 retrieves damage assessment rules that match the damage data and returns the matching damage assessment rules to the damage assessment system 21.

[0094] To further explain the mechanical equipment damage assessment process, Figure 3 A flowchart illustrating another method for assessing the damage to mechanical equipment is shown. (For example...) Figure 3 As shown, this damage assessment method can be executed by the damage assessment system 21, and the method may include the following steps:

[0095] Step 302: Obtain the actual 3D model of the mechanical equipment.

[0096] In this step, the angle and position of the scanning module 201 are adjusted by the robotic arm module 202 in the 3D scanning device 20, so that the scanning module 201 can accurately point to different parts of the mechanical equipment and ensure that the scanning module 201 can cover the entire surface of the mechanical equipment.

[0097] The scanning module 201, positioned at different angles and locations, captures the shape, size, and surface details of the mechanical equipment, calculates the three-dimensional coordinate information of the equipment's surface, and forms point cloud data for different parts. The scanning module 201 aligns the point cloud data from different parts together to obtain the actual point cloud model of the mechanical equipment. The damage assessment system 21 acquires the actual point cloud model obtained by the three-dimensional scanning device 20.

[0098] By working together with the high-precision scanning module 201 and the flexible robotic arm module 202 in the 3D scanning device 20, a comprehensive scan of the surface of mechanical equipment can be achieved and a high-precision actual point cloud model can be obtained.

[0099] Step 304: Align and stitch the reference point cloud model and the actual point cloud model to determine the deformable parts and actual deformation parameters.

[0100] In this step, the damage assessment system 21 imports a reference 3D model of the mechanical equipment and discretizes it into a reference point cloud model. Using the ICP algorithm, the reference point cloud model and the actual point cloud model are stitched and aligned to determine the deformation area. Based on the deformation area and the structural information of the mechanical equipment, the deformed components are identified.

[0101] Based on the comparison between the reference point cloud model and the actual point cloud model, the actual deformation parameters such as the deformation area and deformation amount of the deformable component are calculated.

[0102] Step 306: Establish a stress model based on the geometry and material parameters of the deformable component.

[0103] In this step, the damage assessment system 21 establishes a stress model based on the geometric shape and material parameters of the deformable component, and simulates the stress distribution of deformable components made of different materials under stress conditions.

[0104] Step 308: Calculate the collision parameters of the deformable component using the stress model.

[0105] In this step, the damage assessment system 21 uses a stress model to calculate the collision angle and force distribution that the deformable component may experience during the collision.

[0106] Step 310: Divide the reference 3D model into multiple interconnected elements to form a finite element model.

[0107] In this step, the damage assessment system 21 divides the reference three-dimensional model into multiple interconnected units to form a finite element model, simulating the deformation and stress distribution of mechanical equipment during the collision process.

[0108] Step 312: Based on the material parameters of each mechanical component in the mechanical equipment, set the material properties of multiple elements in the finite element model.

[0109] In this step, the damage assessment system 21 sets corresponding material properties for each element in the finite element model based on the material parameters of each component of the mechanical equipment, and simulates the real physical properties of the finite element model in the simulation process.

[0110] Step 314: Apply the collision parameters as loads to the finite element model, perform collision simulation analysis on the mechanical equipment, and obtain the simulation deformation parameters.

[0111] In this step, the damage assessment system 21 applies the collision angle and collision force distribution as loads to the finite element model and performs collision simulation analysis to simulate the deformation and stress distribution of the mechanical equipment during the collision process, and outputs the simulation deformation parameters and damage data.

[0112] Step 316: Detect the deformation difference between the simulated deformation parameters and the actual deformation parameters.

[0113] In this step, the damage assessment system 21 compares the simulated deformation parameters with the actual deformation parameters to detect the deformation difference between the simulated deformation parameters and the actual deformation parameters.

[0114] Step 318: Determine whether the deformation difference meets the convergence condition.

[0115] In this step, the damage assessment system 21 determines whether the deformation difference meets the convergence condition based on the detected deformation difference.

[0116] If the deformation difference does not meet the convergence condition, then continue to execute step 320;

[0117] If the deformation difference satisfies the convergence condition, then proceed to step 322.

[0118] Step 320: Adjust the collision parameters based on the simulated deformation parameters and the actual deformation parameters.

[0119] In this step, when the deformation difference does not meet the convergence condition, the damage assessment system 21 adjusts the collision parameters according to the simulated deformation parameters and the actual deformation parameters, iteratively executes step 314, applies the adjusted collision parameters as a load to the finite element model, and performs collision simulation analysis on the mechanical equipment again.

[0120] Step 322: Based on the damage data and damage assessment results, generate a damage report for the mechanical equipment.

[0121] In this step, the damage assessment system 21, after determining that the latest deformation difference meets the convergence condition, retrieves matching damage judgment rules from the rule database 22 based on the deformation distribution data, mechanical loss data, and material damage data output by the finite element model, and determines the damage judgment result of the deformed component according to the matching damage judgment rules.

[0122] Based on damage data and damage assessment results, a damage report is generated, including data such as deformation region, volume, area, main direction of deformation region, deformation distribution data, mechanical loss data, material damage data, damage chromatograms corresponding to deformation distribution data, damage chromatograms corresponding to mechanical loss data, damage chromatograms corresponding to material damage data, lifespan changes, and maintenance recommendations.

[0123] Figure 4 This is a schematic diagram illustrating the structure of an electronic device according to an exemplary embodiment of this application. The electronic device may be, for example, a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, personal digital assistant, server, smart home appliance, in-vehicle system, etc. (Reference) Figure 4 At the hardware level, the electronic device includes a processor 402, an internal bus 404, a network interface 406, memory 408, and non-volatile memory 410, and may also include other hardware required for business operations. The processor 402 reads the corresponding computer program from the non-volatile memory 410 into the memory 408 and then runs it, forming a damage assessment device for mechanical equipment at the logical level. Of course, in addition to software implementation, this application does not exclude other implementation methods, such as logic devices or a combination of hardware and software, etc. That is to say, the execution subject of the following processing flow is not limited to individual logic units, but can also be hardware or logic devices.

[0124] Figure 5 This is a block diagram illustrating a damage assessment device for mechanical equipment according to an exemplary embodiment of this application. (Refer to...) Figure 5 The device may include: an acquisition module 502, wherein:

[0125] The acquisition module 502 is used to acquire the actual three-dimensional model of the mechanical equipment; the actual three-dimensional model is used to determine the deformable parts of the mechanical equipment and the collision parameters of the deformable parts, and to perform collision simulation analysis based on the collision parameters to generate damage data of the deformable parts.

[0126] Figure 6 This is a block diagram of another damage assessment device for mechanical equipment according to an exemplary embodiment of this application. (Refer to...) Figure 6 The device may include: a comparison module 602, an analysis module 604, and a simulation module 606, wherein:

[0127] The comparison module 602 is used to compare the reference three-dimensional model of the mechanical equipment with the actual three-dimensional model to determine the deformable parts of the mechanical equipment.

[0128] The analysis module 604 is used to perform material stress analysis on the deformable component and determine the collision parameters of the deformable component.

[0129] The simulation module 606 is used to perform collision simulation analysis on the mechanical equipment based on the collision parameters and generate damage data of the deformable parts.

[0130] In one example, the simulation module 606 is further configured to retrieve damage determination rules matching the damage data from the rule database; determine the damage determination result of the deformable component according to the damage determination rules; and generate a damage report of the mechanical equipment based on the damage data and the damage determination rules.

[0131] In one example, the actual 3D model includes an actual point cloud model; the comparison module 602, when comparing the reference 3D model and the actual 3D model to determine the deformable component of the mechanical equipment, includes: discretizing the reference 3D model and converting it into a reference point cloud model; stitching and aligning the reference point cloud model and the actual point cloud model to determine the deformation region where deformation occurs; and determining the deformable component based on the deformation region and the structural information of the mechanical equipment.

[0132] In one example, before performing material stress analysis on the deformable component and determining its collision parameters, the analysis module 604 further includes: calculating the actual deformation parameters of the deformable component based on a comparison between the reference 3D model and the actual 3D model; the simulation module 606, when performing collision simulation analysis on the mechanical equipment based on the collision parameters and generating damage data for the deformable component, includes: detecting the deformation difference between the simulated deformation parameters and the actual deformation parameters, wherein the simulated deformation parameters reflect the damage status of the deformable component after the collision simulation analysis; if the deformation difference does not meet the convergence condition, iteratively adjusting the collision parameters and performing collision simulation analysis until the latest deformation difference meets the convergence condition, and determining the damage data.

[0133] In one example, the simulation module 606, when used to perform collision simulation analysis on the mechanical equipment based on the collision parameters and generate damage data of the deformable component, includes: dividing the reference three-dimensional model into multiple interconnected elements to form a finite element model; setting the material properties of multiple elements in the finite element model according to the material parameters of each mechanical equipment component in the mechanical equipment; applying the collision parameters as a load to the finite element model to obtain the damage data output by the finite element model.

[0134] In one example, the analysis module 604, when performing material stress analysis on the deformable component and determining the collision parameters of the deformable component, includes: establishing a stress model based on the geometry and material parameters of the deformable component, the stress model being used to simulate the stress distribution of the deformable component during the collision process; and using the stress model to calculate the collision parameters of the deformable component, the collision parameters including at least one of the following: collision angle and collision force distribution.

[0135] In one example, the damage data includes at least one of the following: deformation distribution data, mechanical loss data, and material damage data.

[0136] In one example, the damage data includes a damage chromatogram.

[0137] The specific implementation process of the functions and roles of each unit in the above device can be found in the implementation process of the corresponding steps in the above method, and will not be repeated here.

[0138] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this application according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0139] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as a memory including instructions, is also provided, which can be executed by a processor of a damage assessment device for mechanical equipment to implement the method as described in any of the above embodiments.

[0140] The non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc., and this application does not limit it.

[0141] In an exemplary embodiment, a computer program product including a computer program / instruction is also provided, which can be executed by a processor of a damage assessment device for mechanical equipment to implement the method described in any of the above embodiments.

[0142] The foregoing has described specific embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired results. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0143] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention filed herein. This application is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and alterations can be made without departing from its scope. The scope of this application is limited only by the appended claims.

[0144] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A method for assessing the damage of mechanical equipment, characterized in that, The method includes: Obtain the actual 3D model of the mechanical equipment; By comparing the reference 3D model of the mechanical equipment with the actual 3D model, the deformable components of the mechanical equipment are determined. Material stress analysis is performed on the deformable component to determine its collision parameters; Based on the collision parameters, a collision simulation analysis is performed on the mechanical equipment to generate damage data for the deformable components.

2. The method according to claim 1, characterized in that, The method further includes: Retrieve damage determination rules that match the damage data from the rule database; Based on the damage determination rules, the damage determination result of the deformable component is determined; Based on the damage data and the damage determination rules, a damage report for the mechanical equipment is generated.

3. The method according to claim 1, characterized in that, The actual 3D model includes the actual point cloud model; The step of comparing the reference 3D model with the actual 3D model to determine the deformable components of the mechanical equipment includes: The reference 3D model is discretized and converted into a reference point cloud model; The reference point cloud model and the actual point cloud model are stitched and aligned to determine the deformation area where deformation occurs; The deformable component is determined based on the deformable region and the structural information of the mechanical equipment.

4. The method according to claim 1, characterized in that, Before performing material stress analysis on the deformable component to determine its collision parameters, the method further includes: Based on the comparison results between the reference 3D model and the actual 3D model, the actual deformation parameters of the deformable component are calculated; The step of performing collision simulation analysis on the mechanical equipment based on the collision parameters to generate damage data for the deformable components includes: The deformation difference between the simulated deformation parameters and the actual deformation parameters is detected, and the simulated deformation parameters are used to reflect the damage of the deformable component after collision simulation analysis. If the deformation difference does not meet the convergence condition, the collision parameters are iteratively adjusted and a collision simulation analysis is performed until the latest deformation difference meets the convergence condition, and the damage data is determined.

5. The method according to claim 1, characterized in that, The step of performing collision simulation analysis on the mechanical equipment based on the collision parameters to generate damage data for the deformable components includes: The reference three-dimensional model is divided into multiple interconnected units to form a finite element model; Based on the material parameters of each mechanical component in the mechanical equipment, the material properties of multiple elements in the finite element model are set; The collision parameters are applied as loads to the finite element model to obtain the damage data output by the finite element model.

6. The method according to claim 1, characterized in that, The step of performing material stress analysis on the deformable component to determine its collision parameters includes: Based on the geometry and material parameters of the deformable component, a stress model is established, which is used to simulate the stress distribution of the deformable component during the collision process; Using the stress model, the collision parameters of the deformable component are calculated, and the collision parameters include at least one of the following: collision angle and collision force distribution.

7. The method according to claim 1, characterized in that, The damage data includes at least one of the following: deformation distribution data, mechanical loss data, and material damage data.

8. The method according to claim 1, characterized in that, The damage data includes damage chromatograms.

9. A damage assessment device for mechanical equipment, characterized in that, The device includes: The acquisition module is used to acquire the actual three-dimensional model of the mechanical equipment; the actual three-dimensional model is used to determine the deformable parts of the mechanical equipment and the collision parameters of the deformable parts, and to perform collision simulation analysis based on the collision parameters to generate damage data of the deformable parts.

10. A damage assessment device for mechanical equipment, characterized in that, The device includes: The comparison module is used to compare the reference 3D model of the mechanical equipment with the actual 3D model to determine the deformable parts of the mechanical equipment. The analysis module is used to perform material stress analysis on the deformable component and determine the collision parameters of the deformable component; The simulation module is used to perform collision simulation analysis on the mechanical equipment based on the collision parameters and generate damage data of the deformable parts.

11. An electronic device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor implements the method as described in any one of claims 1-8 by executing the executable instructions.

12. A computer-readable storage medium storing computer instructions thereon, characterized in that, When executed by the processor, this instruction implements the method as described in any one of claims 1-8.

13. A computer program product having a computer program / instructions stored thereon, characterized in that, When the computer program / instruction is executed by the processor, it implements the method as described in any one of claims 1-8.

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