Analysis method of installation point strength of automobile sub-frame

An analysis method and a technology of installation points, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as accuracy needs to be improved, and achieve the effect of ensuring the quality of the whole vehicle

Pending Publication Date: 2018-09-11
JIANGLING HLDG
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  • Claims
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Problems solved by technology

[0005] Based on this, the purpose of the present invention is to solve the problem in the prior art that the ac...

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  • Analysis method of installation point strength of automobile sub-frame
  • Analysis method of installation point strength of automobile sub-frame

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Embodiment Construction

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] When analyzing the strength of the mounting point of the sub-frame of the automobile, its accuracy still needs to be improved, and the safety of the assembly of the whole vehicle cannot be guaranteed, and there are certain potential safety hazards.

[0032] In order to solve this technical problem, the present invention proposes a meth...

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Abstract

The invention discloses an analysis method of installation point strength of an automobile sub-frame. The method comprises the steps that overall scanning is conducted on an automobile body-in-white and the automobile sub-frame to establish a finite element model according to scanning data obtained through scanning; multiple installation points between the automobile body-in-white and the automobile sub-frame are determined, and corresponding acceleration of gravity of each installation point under preset working conditions is obtained, converted into loads and loaded on each installation point respectively; the finite element model is solved to obtain strain values and regional stress values of each installation point, wherein the regional stress values are the stress on the automobile body-in-white within ranges of the installation points; when it is detected that the strain values are within preset strain ranges and the regional stress values are smaller than the yield limit of materials of an automobile, the outputting of the analysis data of the finite element model is confirmed. By means of the analysis method, it is ensured that strength data of each installation point conforms to preset standards, and the overall safety coefficient of a product is improved.

Description

technical field [0001] The invention relates to the technical field of computer-aided design, in particular to an analysis method for the strength of a mounting point of an automobile sub-frame. Background technique [0002] With the development of the economy and the advancement of technology, the number of cars owned by urban residents is increasing rapidly, and road traffic accidents have become one of the important threats to human life safety. Therefore, how to improve the overall safety performance of automobiles has become the most important research direction for automobile engineers. [0003] For a car, the sub-frame of the car (including the front sub-frame and the rear sub-frame) is an important part of the vehicle. Specifically, the subframe can be regarded as the skeleton of the front and rear axles, and its function is to support the suspension brackets of the front and rear axles, so as to block vibration and noise. At the same time, it can also play a certa...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/23G06F30/15
Inventor 刘翀尹伟廖程亮潘磊康铭吴维龚衡李志凯余乐权
Owner JIANGLING HLDG
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