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Method and device for constructing bolt fatigue life prediction model based on workbench and matlab

A technology of fatigue life prediction and fatigue life, which is applied in the direction of instruments, geometric CAD, design optimization/simulation, etc., and can solve problems such as low work efficiency and increased workload of designers

Active Publication Date: 2022-04-29
TANGSHAN COLLEGE
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Problems solved by technology

However, due to the large number, types and load forms of bolts in a machine, a large number of repeated modeling and analysis are often required, which not only reduces work efficiency, but also increases the workload for designers

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  • Method and device for constructing bolt fatigue life prediction model based on workbench and matlab
  • Method and device for constructing bolt fatigue life prediction model based on workbench and matlab
  • Method and device for constructing bolt fatigue life prediction model based on workbench and matlab

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Embodiment Construction

[0080] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0081] see figure 1 A method for constructing a bolt fatigue life prediction model based on Workbench and Matlab provided by an embodiment of the present invention includes:

[0082] S100, obtaining the geometric parameters of the bolts, drawing a three-dimensional model of the bolts using Workbench based on the geometric parameters,

[0083] Among them, the bolt geometric parameters include: the nominal diameter of the bolt, the thickness of the connector, the size of the bolt head and the nut, the thickness of the nut and the nut, and the nominal length of the bolt.

[0084] Such as figur...

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Abstract

The embodiment of the present invention provides a method for constructing a bolt fatigue life prediction model based on Workbench and Matlab, drawing the three-dimensional model of the bolt through Workbench, and using Workbench software to perform parametric analysis on commonly used bolts to obtain their fatigue under different working conditions Life data; use the BP neural network in Matlab to analyze and model the analyzed data, so as to obtain the fatigue life prediction model to realize the prediction of bolt fatigue life. Applying the solution provided by the embodiment of the present invention, a bolt fatigue life prediction model is established by using Workbench and Matlab simulation and data processing analysis. The established model can quickly predict the fatigue life of the bolt, improve work efficiency and reduce workload.

Description

technical field [0001] The invention relates to the technical field of mechanical fatigue life calculation, in particular to a method and device for constructing a bolt fatigue life prediction model based on Workbench and Matlab. Background technique [0002] Each component in mechanical equipment does not exist in isolation, and the various components are connected as a whole through connectors to achieve a certain function, and the most commonly used connectors are bolts. [0003] The number of bolts in a complete machine is at least a dozen, more than dozens or even hundreds, and the types and force forms of the bolts are not nearly the same. In practical application, the failure forms of bolts are usually various, but in terms of damage properties, about 90% of bolts belong to fatigue failure. [0004] At present, the common method of bolt design is: the designer selects the bolt model based on theoretical calculation and experience, then builds a three-dimensional mode...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17G06F30/23G06F119/04G06F119/14
CPCG06F30/17G06F30/23G06F2119/04G06F2119/14
Inventor 李晓婧沈佳兴张士强高欣杨国权刘超霍卿李源
Owner TANGSHAN COLLEGE
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