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Method and device for establishing bolt connection and storage medium

A technology of bolts and bolt holes, applied in special data processing applications, geometric CAD, design optimization/simulation, etc., can solve the problems of time-consuming engineers and low efficiency

Active Publication Date: 2020-08-25
湖南行必达网联科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for a large model with a large number of bolts and a large number of bolt connections, it is often necessary for the simulation engineer to use the simulation software to click and select each bolt hole in the model to establish the bolt connection relationship. It takes a lot of time for engineers to assign different material properties to the model, and the efficiency is low

Method used

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  • Method and device for establishing bolt connection and storage medium
  • Method and device for establishing bolt connection and storage medium
  • Method and device for establishing bolt connection and storage medium

Examples

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Effect test

Embodiment 1

[0028]This embodiment provides a method for establishing bolted connections, which can be applied to various simulation software with finite element simulation analysis functions, such as hypermesh software; wherein, the hypermesh software has a powerful finite element mesh before Processing functions, including pre-processing, solver, and post-processing complete modules, can directly input existing 3D CAD (Computer Aided Design, computer-aided design) geometric models, such as UG (Unigraphics NX), Pro / E (Pro / Engineer), CATIA (Computer Aided Three-dimensional Interactive Application) and other existing finite element models, and the efficiency and model quality of the import are very high, which can greatly reduce a lot of repetitive work, making CAE (Computer Aided Engineering, computer-aided Engineering) Analysis engineers can devote more energy and time to analysis and calculation work. Such as figure 1 As shown, the method includes the following steps:

[0029] Step S1...

Embodiment 2

[0038] This embodiment provides another method for establishing bolted connections, which is implemented on the basis of the above embodiments, such as image 3 As shown, the method includes the following steps:

[0039] Step S302, performing surface extraction, washer processing, grid drawing and material property setting processing on the target model to obtain the processed target model;

[0040] The above centered surface processing can be performed on the target model by selecting appropriate parameters according to the centered surface function of the simulation software; usually when meshing the target model, it is necessary to make washer elements around the bolt holes , that is, the above washer processing can be performed on the bolt holes of the target model after drawing the centered surface by selecting appropriate parameters according to the washer function of the simulation software; grid function, by selecting the appropriate grid size and other parameters to ...

Embodiment 3

[0065] Corresponding to the above-mentioned method embodiment, the embodiment of the present invention provides a device for establishing a bolted connection, such as Figure 6 As shown, the device includes:

[0066] The preprocessing module 61 is used to obtain the target model; the target model is preprocessed to obtain the designated washer surface of each bolt hole in the target model;

[0067] Determining module 62, for each specified washer surface, according to the surface thickness of the specified washer surface, determine the target washer surface associated with the specified washer surface;

[0068] The connection module 63 is configured to establish a bolt connection relationship between the designated washer surface and the target washer surface according to the center distance between the designated washer surface and the target washer surface.

[0069] The embodiment of the present invention provides a device for establishing a bolt connection. The target mode...

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Abstract

The invention provides a method and device for establishing bolt connection and a storage medium, and the method comprises the steps: preprocessing a target model through simulation software, and obtaining a specified worker surface of each bolt hole in the target model; for each designated worker surface, determining a target worker surface associated with the designated worker surface accordingto the surface thickness of the designated worker surface; and according to the center distance between the designated worker surface and the target worker surface, establishing a bolt connection relationship between the designated worker surface and the target worker surface. In the mode, the positions of the bolt holes in the target model do not need to be judged manually, bolt connection is automatically recognized and established through simulation software, grid processing of the solid bolts and manual selection of the bolt positions are avoided, the calculation amount is reduced while the calculation precision is guaranteed, and the efficiency of establishing bolt connection is improved.

Description

technical field [0001] The present invention relates to the technical field of bolt connection, in particular to a method, device and storage medium for establishing bolt connection. Background technique [0002] At present, finite element simulation analysis methods are more and more used in the automobile industry, and guide the structural design of its key components. However, due to the complexity of the auto parts model, especially the truck frame, there are hundreds of bolts in only one frame; the existing method of establishing bolt connection usually deletes the original bolt solid model, and creates a beam element or rigid element to replace the bolted connection function. However, for a large model with a large number of bolts and a large number of bolt connections, it is often necessary for the simulation engineer to use the simulation software to click and select each bolt hole in the model to establish the bolt connection relationship. It takes a lot of time f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F30/17
CPCG06F30/23G06F30/17
Inventor 肖博升刘兵王毅
Owner 湖南行必达网联科技有限公司
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