CN110968924B - Model preprocessing method and computer-readable storage medium - Google Patents
Model preprocessing method and computer-readable storage medium Download PDFInfo
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Abstract
The invention discloses a model preprocessing method and a computer readable storage medium, comprising the following steps: information reconstruction, namely performing information reconstruction on the target model to divide the components in the target model into at least two component sets; a gridding step, which is to perform gridding on the components in the component set so as to optimize the components in the component set; and an attribute giving step, namely giving attributes to the components after the grid division, so that the components are given corresponding attributes to obtain the pre-processing data. The model preprocessing method can automatically identify the components of the same part, realize the functions of automatic grouping, one-key extraction of the middle plane, automatic geometric processing, one-building assignment material attribute and the like, quickly improve the model preprocessing function, and greatly improve the design research and development capability of the cabinet body.
Description
Technical Field
The invention relates to a preprocessing method, in particular to a quick preprocessing method capable of quickly copying a geometric model.
Background
With the continuous progress and high-speed development of high-speed railways and urban rail transit, high-speed railways and motor cars have become important transportation means for people's life. The converter is an important component of a traction system, and Computer Aided design (CAE) technology is widely applied to design and manufacture of the converter, and is particularly used in the structural optimization design of a converter cabinet.
The converter cabinet body structure mainly comprises a plurality of electric components and a cabinet body framework. The structure of the cabinet body is mostly made of materials such as aluminum alloy, stainless steel and carbon steel, and the connection mode is mainly welding, bolt connection, riveting and the like. When the structural strength simulation calculation modeling is carried out on the converter cabinet body, the components inside the cabinet body need to be arranged, but the number of electrical parts and skeleton parts inside the converter cabinet body is very large, about ten thousand components are provided after simulation modeling software is introduced, and due to the fact that the names of the components are irregular by common designers, part of the same components in the components have a plurality of component names (such as bolts, rivets and the like), and meanwhile, the cabinet body is geometrically cleaned and the material attributes are given, so that the important factors restricting the simulation efficiency and the simulation precision are also included. However, at present, the pretreatment of the converter cabinet is mostly cleaned in a manual mode, that is, the hm (hm) (hypermesh) function is called to perform model pretreatment, but because the converter cabinet is relatively complex and one converter cabinet component is generally tens of thousands, simulation calculation personnel needs to consume a large amount of time on the model pretreatment, and the simulation efficiency is seriously reduced.
Therefore, a method for preprocessing a model to improve the efficiency of preprocessing a cabinet is needed.
Disclosure of Invention
The invention aims to solve the technical problems that in the existing simulation modeling process of the converter cabinet body, the pretreatment efficiency of the converter cabinet body is low, and the manpower is wasted.
In order to solve the above technical problem, the present invention provides a model preprocessing method, including:
an information reconstruction step, namely performing information reconstruction on a target model to enable components in the target model to be divided into at least two component sets;
a step of meshing, which is to mesh the components in all the component sets so as to optimize the components in the component sets;
and an attribute giving step, namely giving attributes to the components after the grid division, so that the components are given corresponding attributes to obtain the pre-processing data.
Preferably, between the information reconstructing step and the meshing step, further comprising:
and a geometric cleaning step, namely performing geometric cleaning on all or part of the assembly set, so that a part of the structure of the assembly corresponding to the assembly set is integrated or a part of the structure of the assembly in the corresponding assembly combination is repaired.
Preferably, when the target model is a converter cabinet model, the components in the target model are divided into an electrical component set and a skeleton component set.
Preferably, the information reconstructing step includes:
combining the components in the converter cabinet model according to component names, and integrating the components with the component names being preset names;
recording position information of a bolt assembly and a rivet assembly in the converter cabinet model, and then integrating the recorded bolt assembly and rivet assembly;
preliminarily grouping the rest assemblies in the converter cabinet model according to the geometric dimension, the length-thickness ratio and the material property of the assemblies in the converter cabinet model to generate an electrical assembly initial set, a framework assembly initial set and other assembly sets;
judging the components in the other component sets again, and distributing the components in the other component sets to the electrical component initial set and the framework component initial set to obtain an electrical component set and a framework component set;
and performing mid-plane extraction on the components in the skeleton component set.
Preferably, the geometric cleaning step comprises: performing at least one of the following substeps on a component in the set of skeletal components:
removing the small holes, judging whether the small holes on the components meet the preset conditions of the small holes, and if the preset conditions of the small holes are met, integrating the small holes on the corresponding components;
removing the surface chamfers, judging whether the surface chamfers of the components meet the preset condition of the surface chamfers, and if the preset condition of the surface chamfers is met, integrating the surface chamfers on the corresponding components;
removing the edge fillets, judging whether the edge fillets of the components meet preset conditions of the edge fillets or not, and if the preset conditions of the edge fillets are met, integrating the edge fillets on the corresponding components;
removing the edge bevel angle, judging whether the size and the angle of the bevel edge of the component meet preset conditions of the edge bevel angle, and if the preset conditions of the edge bevel angle are met, integrating the edge bevel angle on the corresponding component;
the bevel edge scribing is carried out, whether the length of the bevel edge and the bevel edge angle of the assembly meet the preset bevel edge scribing condition or not is judged, and if the preset bevel edge scribing condition is met, the bevel edge scribing is carried out on the corresponding assembly;
repairing the crack arrest groove, judging whether the distance between two ends of the crack arrest groove of the component and the angle of two hard points meet the preset condition of the crack arrest groove, and repairing the crack arrest groove of the corresponding component if the preset condition of the crack arrest groove is met;
repairing the bent edge, judging whether the hard point of the assembly meets the preset bent edge condition, and if so, repairing the bent edge of the corresponding assembly;
and repairing the door frame, namely judging whether the connecting surface of the assembly meets the preset condition of the door frame, and if so, repairing the door frame of the corresponding assembly.
Preferably, the meshing step comprises performing at least one of the following sub-steps on the components of the set of electrical components and the set of skeletal components:
a geometric segmentation substep, which judges the longest edge of segmentation according to the hard points on the edge of the segmentation surface of the component and segments the geometric surface of the component by taking the longest edge as the normal direction;
the grid optimization function is used for optimizing grids of the components in the framework component set by taking preset grid quality as a standard;
and (3) solid grid division, namely hollowing the solid components in the components and reserving 3 layers of wall surface grid layers of the solid components.
Preferably, the mesh dividing step further comprises:
and carrying out grid array processing, grid transplanting processing, rotation processing, translation processing, positioning processing and mirror image processing on the components in the electrical component set and the framework component set.
Preferably, the step of assigning attributes comprises:
assigning attributes of the skeleton component set, and assigning corresponding attributes to the components in the skeleton component set based on the components extracted from the skeleton component set;
attributes of the electrical component set are assigned, and weight attributes are added after component names in the electrical component set.
Preferably, the method is implemented based on a hypermesh software platform
According to an aspect of the present invention, a computer-readable storage medium is provided, in which a computer program is stored which, when being executed by a processor, carries out the steps of the model preprocessing method as described above.
Compared with the prior art, one or more embodiments in the above scheme can have the following advantages or beneficial effects:
by applying the model preprocessing method provided by the embodiment of the invention, the components with the same name in the target model are preliminarily integrated by reconstructing the information of the target model, and the automatic grouping of the components in the target model is realized; geometric cleaning is carried out on the parts, component structures which can be ignored on the components in the simulation modeling process are integrated or certain repairing is carried out on certain structures, so that the simulation efficiency and the simulation precision of the target model are improved, and the calculation process is simplified; through carrying out the grid division to the subassembly, carry out optimization treatment to the subassembly of the converter cabinet body for the quality and the precision of subassembly all improve to some extent, still make the appearance of subassembly more pleasing to the eye simultaneously. By giving attributes to the assemblies, the cabinet assemblies are named uniformly, and the names also reflect the corresponding attributes of the assemblies. In summary, the model preprocessing method provided by the embodiment of the invention automatically identifies the components of the same part, realizes the functions of automatic grouping, one-key extraction of the middle plane, automatic geometric processing, one-building assignment material attribute and the like, can quickly improve the model preprocessing function, and greatly improves the design research and development capability of the cabinet body.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flow chart illustrating a model preprocessing method according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.
Nowadays, the structure optimization design of the converter cabinet body generally applies computer aided design technology. The structure of the converter cabinet body mainly comprises a plurality of electrical parts and a cabinet body framework, when the structural strength simulation calculation modeling is carried out on the converter cabinet body, the components inside the cabinet body need to be arranged, however, the electrical parts and the framework parts inside the converter cabinet body are very many, and the naming of the components is not regular. However, at present, the converter cabinet is mostly cleaned in a manual mode, so that when the converter cabinet is subjected to simulation modeling, simulation calculation personnel needs to spend a large amount of time on model pretreatment, and the simulation efficiency is seriously reduced.
Example one
In order to solve the problems in the prior art, the embodiment of the invention provides a model preprocessing method.
The model preprocessing method is usually executed based on a hypermesh software platform, secondary development is carried out on the basis of the functions of hypermesh software, and the function of quickly preprocessing a target model is added. Meanwhile, the model pretreatment method can be used for pretreating various models.
Fig. 1 shows a schematic flow chart of a model preprocessing method according to an embodiment of the present invention, and referring to fig. 1, the model preprocessing method according to the embodiment of the present invention includes the following steps.
Step S101, information reconstruction step, the target model is subjected to information reconstruction, and the components in the target model are divided into at least two component sets.
Specifically, the information of the target model is reconstructed, and the components in the target model are divided into a plurality of sets according to the attributes of the target model. Preferably, when the target model to be processed is a converter cabinet model, the information reconstruction of the converter cabinet model includes the following steps: firstly, the converter cabinet model is integrally led into hypermesh software. Secondly, all the components in the converter cabinet model are combined according to the names of the components, namely the components with the same names in the converter cabinet model are combined, and the components with different names are not combined; identifying all component names in the converter cabinet model, judging whether components with the same names as the preset names exist, and deleting the components with the same names as the preset names if the components with the same names as the preset names exist; preferably, the preset names are spring washer, nut, etc. And recording the position information of the bolt assembly and the rivet assembly in the current transformer cabinet model, and then integrating the recorded bolt assembly and rivet assembly, namely deleting the geometric models of the bolt assembly and the rivet assembly which are subjected to position recording. From now on, the remaining components in the converter cabinet model are preliminarily grouped according to the geometric sizes, length-thickness ratios and material properties of the components in the converter cabinet model, and an electrical component initial set, a skeleton component initial set and other component sets are generated. And finally, manually judging the components in the other component sets, distributing the components in the other component sets to the electrical component initial set and the framework component initial set, and respectively and correspondingly obtaining the electrical component set and the framework component set. The two steps are that the components in the converter cabinet model are divided into two component sets according to the main components of the converter cabinet, namely an electrical component set and a framework component set. In addition, the information reconstruction step further comprises the step of extracting the middle surface of the components in the skeleton component set, and the extracted middle surface can be used for attribute assignment of the components in the skeleton component set in the attribute assignment step.
Step S102, geometric cleaning step, so that the partial structure of the component corresponding to the component assembly in the component assembly is integrated or the partial structure of the component in the corresponding component assembly is repaired.
Specifically, geometric cleaning is performed on all or part of the assembly sets obtained in the information reconstruction step, so that assembly structures which can be omitted on the assemblies in the simulation modeling process are integrated or some structures of the assemblies are repaired, the simulation efficiency and the simulation precision of the target model are improved, and the calculation process is simplified. Preferably, when the target model to be processed is a converter cabinet model, the framework component set is geometrically cleaned, further, components in the framework component set may have small holes, surface chamfers, edge fillets, edge bevels, crack-stopping grooves, bent edges, door frames and the like, when the structures existing on the components meet certain conditions, some of the structures can be ignored (integrated) or some of the structures need to be repaired, so that the simulation efficiency and the simulation accuracy of the target model are improved, and the calculation process is simplified; specifically, at least one of the following substeps is performed on a component in the skeleton component set.
And a pore removing substep, namely judging whether pores on the components in the skeleton component set meet pore preset conditions or not, and integrating the pores on the corresponding components if the pore preset conditions are met. Preferably, the preset condition of the small holes is that the diameter of the small holes is smaller than 3mm, that is, when the diameter of the small holes on the components in the skeleton component set is smaller than 3mm, the small holes on the corresponding components are integrated.
And a surface chamfering removing sub-step, namely judging whether the surface chamfering of the components in the framework component set meets a preset condition of the surface chamfering or not, and if the preset condition of the surface chamfering is met, integrating the surface chamfering on the corresponding component. Preferably, the preset condition of the surface chamfer is that the fillet diameter of the component surface chamfer is less than 3mm, and two lines of the fillet surface are parallel and equal in length. I.e. when the fillet diameter of the face chamfer and the two lines of the fillet face on the assembly meet the above conditions, the corresponding ground chamfer is removed.
And a sub-step of removing the edge fillets, judging whether the edge fillets of the components in the skeleton component set meet preset conditions of the edge fillets or not, and if the preset conditions of the edge fillets are met, integrating the edge fillets on the corresponding components. Preferably, the preset condition of the edge round angle is that the round angle of the edge round angle of the component is directly less than 3mm, and the angle of the round angle is more than or equal to 30 degrees and less than or equal to 60 degrees. Namely, when the fillet of the edge fillet of the component meets the above conditions, the edge fillet is integrated.
And a sub-step of removing the edge bevel angle, namely judging whether the size and the angle of the bevel edge of the assembly in the skeleton assembly set meet the preset condition of the edge bevel angle, and if the preset condition of the edge bevel angle is met, integrating the edge bevel angle on the corresponding assembly. Preferably, the preset condition of the edge bevel angle is that the size of the bevel edge of the assembly is less than or equal to 3mm, and the bevel edge angle is more than or equal to 30 degrees and less than or equal to 45 degrees. I.e. when the bevel size and bevel angle of the assembly meet the above conditions, the bevel angle of the edge is integrated.
And the bevel edge scribing sub-step is used for judging whether the bevel edge length and the bevel edge angle of the assembly in the skeleton assembly set meet bevel edge scribing preset conditions or not, and if the bevel edge scribing preset conditions are met, performing bevel edge scribing on the corresponding assembly. Preferably, the preset condition of the bevel edge marking is that the length of the bevel edge of the assembly is more than or equal to 15mm, and the bevel edge angle is more than or equal to 30 degrees and less than or equal to 45 degrees. I.e., when the hypotenuse length and the hypotenuse angle of the assembly meet the above criteria, the corresponding assembly is hypotenuse-scribed.
Repairing the crack arrest groove, judging whether the distance between two ends of the crack arrest groove and the angle of two hard points of the assembly in the skeleton assembly set meet the preset condition of the crack arrest groove, and repairing the crack arrest groove of the corresponding assembly if the preset condition of the crack arrest groove is met; preferably, the preset condition of the crack arrest groove is that the distance between two ends of the crack arrest groove of the assembly is less than 3mm, and the hard point angle between two ends of the crack arrest groove is less than 30 degrees. Namely repairing the crack arrest groove of the corresponding component when the distance between the two ends of the crack arrest groove of the component and the angle of the two hard points meet the conditions.
And repairing the bent edge, judging whether the hard point of the assembly in the framework assembly set meets the preset condition of the bent edge, and repairing the bent edge of the corresponding assembly if the preset condition of the bent edge is met. Preferably, the assembly comprises three flat hard points, and the three hard points are on the same plane, and the three hard points present an angle of 90 ° or less. And if the hard points of the assemblies meet the conditions, repairing the bent edges of the corresponding assemblies.
And repairing the door frame, namely judging whether the connecting surface of the assembly in the framework assembly set meets a preset condition of the door frame, and if so, repairing the door frame of the corresponding assembly. Preferably, the connection surfaces of the judgment components are vertical, and the judgment connection surfaces belong to the same combination. And if the connecting surface of the assembly meets the conditions, repairing the door frame of the corresponding assembly.
It should be noted that, during the process of performing geometric cleaning on the skeleton component set, one or more of the sub-steps may be performed simultaneously, that is, the sub-steps may be performed one by one or may be performed by one key operation.
Step S103, a grid division step, namely carrying out grid division on the components in the component set so as to optimize the components in the component set;
specifically, the components in all the component sets are subjected to grid division, and all the component sets comprise a component set subjected to geometric cleaning and a component set not subjected to geometric cleaning, so that the components in the component sets are optimized, the quality and the precision of the components are further improved, and the appearance of the components is more attractive. Preferably, when the target model to be processed is a converter cabinet model, the skeleton component set is geometrically cleaned, and the electrical component set is not geometrically cleaned. Still further, the meshing step includes performing at least one of the following sub-steps on the components in the set of electrical components and the set of skeletal components.
And the geometric segmentation substep is used for judging the longest edge of segmentation according to hard points on the edge of the segmentation surface of the component and segmenting the geometric surface of the component by taking the longest edge as the normal direction. The step can also be carried out by manual cutting, and the manual judgment normal method is needed when the manual cutting is carried out.
A grid optimization function substep, which is used for carrying out grid optimization on the components in the skeleton component set by taking the preset grid quality as a standard; the preset grid quality is set manually, the grid optimization of the components in the skeleton component set can be carried out once, the components cannot meet the requirement of the preset grid quality, the components can be optimized for multiple times, and the iterative optimization times can be set so that the components can achieve the final optimized grid quality.
And the entity grid division substep is used for hollowing entity components in the electrical component set and the skeleton component set, reserving 3 wall grid layers of the entity components, reducing the data occupation space of the entity components, and facilitating calculation when carrying out simulation calculation modeling on the converter cabinet model structure.
It should be noted that the grid division step further includes performing grid array processing, grid transplanting processing, rotation processing, translation processing, positioning processing, and mirror processing on the components in the electrical component set and the framework component set, and the above processing is a conventional processing manner, and therefore, will not be described in detail. The grid processing modes can be carried out simultaneously or independently, namely, the grid processing modes can be carried out one by one or by one key operation.
And S104, an attribute endowing step, namely endowing attributes to the components after the grid division so that the components are endowed with corresponding attributes to obtain pre-processing data.
Specifically, the step of assigning attributes includes assigning attributes of the set of electrical components and assigning attributes of the set of skeletal components. And the attribute assignment of the skeleton component set is to assign corresponding attributes to the components in the skeleton component set according to the extracted components in the skeleton component set. For example, modified in the original name to shell _ xxxxxx _ xxmm, where xxmm is the thickness of the extracted middle component in the skeleton component set. The attribute of the electrical component set is given, and the weight attribute is added after the component name in the electrical component set. For example, solid _ xxxxxx _5kg, the simulation modeling software will automatically recognize the weight of the component, completing the automatic attribute assignment. And obtaining pretreatment data. By giving attributes to the assemblies, the cabinet assemblies are named uniformly, and the names also reflect the corresponding attributes of the assemblies.
By applying the model preprocessing method provided by the embodiment of the invention, the components with the same name in the target model are preliminarily integrated by reconstructing the information of the target model, and the automatic grouping of the components in the target model is realized; geometric cleaning is carried out on the parts, component structures which can be ignored on the components in the simulation modeling process are integrated or certain repairing is carried out on certain structures, so that the simulation efficiency and the simulation precision of the target model are improved, and the calculation process is simplified; through carrying out the grid division to the subassembly, carry out optimization treatment to the subassembly of the converter cabinet body for the quality and the precision of subassembly all improve to some extent, still make the appearance of subassembly more pleasing to the eye simultaneously. By giving attributes to the assemblies, the cabinet assemblies are named uniformly, and the names also reflect the corresponding attributes of the assemblies. In summary, the model preprocessing method provided by the embodiment of the invention automatically identifies the components of the same part, realizes the functions of automatic grouping, one-key extraction of the middle plane, automatic geometric processing, one-building assignment material attribute and the like, can quickly improve the model preprocessing function, and greatly improves the design research and development capability of the cabinet body.
Example two
To solve the technical problems in the prior art, embodiments of the present invention provide a computer-readable storage medium.
The computer readable storage medium of this embodiment stores therein a computer program, and the computer program is executed by a processor to implement the steps of the model preprocessing method of the above embodiment.
It should be noted that, the specific implementation steps of the specific model preprocessing method refer to the first embodiment, and are not described herein again.
By applying the computer-readable storage medium provided by the embodiment of the invention, the components with the same name in the target model are preliminarily integrated by reconstructing the information of the target model, and the automatic grouping of the components in the target model is realized; geometric cleaning is carried out on the parts, component structures which can be ignored on the components in the simulation modeling process are integrated or certain repairing is carried out on certain structures, so that the simulation efficiency and the simulation precision of the target model are improved, and the calculation process is simplified; through carrying out the grid division to the subassembly, carry out optimization treatment to the subassembly of the converter cabinet body for the quality and the precision of subassembly all improve to some extent, still make the appearance of subassembly more pleasing to the eye simultaneously. By giving attributes to the assemblies, the cabinet assemblies are named uniformly, and the names also reflect the corresponding attributes of the assemblies. In summary, the model preprocessing method provided by the embodiment of the invention automatically identifies the components of the same part, realizes the functions of automatic grouping, one-key extraction of the middle plane, automatic geometric processing, one-building assignment material attribute and the like, can quickly improve the model preprocessing function, and greatly improves the design research and development capability of the cabinet body.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A model preprocessing method is characterized by comprising the following steps:
an information reconstruction step, namely performing information reconstruction on a target model to enable components in the target model to be divided into at least two component sets;
a step of meshing, which is to mesh the components in all the component sets so as to optimize the components in the component sets;
attribute giving, namely giving attributes to the components subjected to grid division, so that the components are given corresponding attributes to obtain pre-processing data;
when the target model is a converter cabinet model, components in the target model are divided into an electrical component set and a framework component set; the information reconstructing step includes:
combining the components in the converter cabinet model according to component names, and integrating the components with the component names being preset names;
recording position information of a bolt assembly and a rivet assembly in the converter cabinet model, and then integrating the bolt assembly and the rivet assembly which record the position information;
preliminarily grouping the rest assemblies in the converter cabinet model according to the geometric size, the length-thickness ratio and the material property of the assemblies in the converter cabinet model to generate an electrical assembly initial set, a framework assembly initial set and other assembly sets;
judging the components in the other component sets again, and distributing the components in the other component sets to the electrical component initial set and the framework component initial set to obtain an electrical component set and a framework component set;
and performing mid-plane extraction on the components in the skeleton component set.
2. The method of claim 1, further comprising, between the information reconstructing step and the meshing step:
and a geometric cleaning step, namely performing geometric cleaning on all or part of the assembly set, so that part of the structure of the assembly corresponding to the assembly in the assembly set is integrated or part of the structure of the assembly in assembly combination is repaired.
3. The method of claim 2, wherein the geometric cleaning step comprises: performing at least one of the following substeps on a component in the set of skeletal components:
removing the small holes, judging whether the small holes on the components meet the preset conditions of the small holes, and if the preset conditions of the small holes are met, integrating the small holes on the corresponding components;
removing the surface chamfers, judging whether the surface chamfers of the components meet the preset condition of the surface chamfers, and if the preset condition of the surface chamfers is met, integrating the surface chamfers on the corresponding components;
removing the edge fillets, judging whether the edge fillets of the components meet preset conditions of the edge fillets or not, and if the preset conditions of the edge fillets are met, integrating the edge fillets on the corresponding components;
removing the edge bevel angle, judging whether the size and the angle of the bevel edge of the component meet preset conditions of the edge bevel angle, and if the preset conditions of the edge bevel angle are met, integrating the edge bevel angle on the corresponding component;
the bevel edge scribing is carried out, whether the length of the bevel edge and the bevel edge angle of the assembly meet the preset bevel edge scribing condition or not is judged, and if the preset bevel edge scribing condition is met, the bevel edge scribing is carried out on the corresponding assembly;
repairing the crack arrest groove, judging whether the distance between two ends of the crack arrest groove of the component and the angle of two hard points meet the preset condition of the crack arrest groove, and repairing the crack arrest groove of the corresponding component if the preset condition of the crack arrest groove is met;
repairing the bent edge, judging whether the hard point of the assembly meets the preset bent edge condition, and if so, repairing the bent edge of the corresponding assembly;
and repairing the door frame, namely judging whether the connecting surface of the assembly meets the preset condition of the door frame, and if so, repairing the door frame of the corresponding assembly.
4. The method of claim 3, wherein the meshing step comprises at least one of the following substeps for components in the set of electrical components and the set of skeletal components:
geometric segmentation, namely judging the longest edge of segmentation according to hard points on the edge of the segmentation surface of the component, and segmenting the geometric surface of the component by taking the longest edge as a normal direction;
the grid optimization function is used for optimizing grids of the components in the framework component set by taking preset grid quality as a standard;
and (3) solid grid division, namely hollowing the solid components in the components and reserving 3 layers of wall surface grid layers of the solid components.
5. The method of claim 4, wherein the step of meshing further comprises:
and carrying out grid array processing, grid transplanting processing, rotation processing, translation processing, positioning processing and mirror image processing on the components in the electrical component set and the framework component set.
6. The method of claim 5, wherein the step of assigning attributes comprises:
assigning attributes of the skeleton component set, and assigning corresponding attributes to the components in the skeleton component set based on the components extracted from the skeleton component set;
attributes of the electrical component set are assigned, and weight attributes are added after component names in the electrical component set.
7. The method according to any one of claims 1-6, wherein the method is implemented based on a hypermesh software platform.
8. A computer-readable storage medium, characterized in that a computer program is stored which, when being executed by a processor, carries out the steps of the model preprocessing method according to any one of claims 1 to 7.
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