Method for analyzing excessive opening of car doors

A car door and car technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of economy and time waste, prolong the research and development cycle, and increase the cost of automobile research and development, so as to improve efficiency, shorten the cycle, The effect of reducing R&D costs

Inactive Publication Date: 2016-10-05
JIANGLING MOTORS
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Problems solved by technology

Such an analysis method requires continuous trial production and updating of parts, which not only increases the cost of automobile

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  • Method for analyzing excessive opening of car doors

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Embodiment Construction

[0021] For ease of understanding, the present invention will be further described below in conjunction with the accompanying drawings.

[0022] see figure 1 , a flow chart of a method for analyzing the over-opening of automobile doors provided by the present invention, the concrete process is:

[0023] S11. Hypermesh acquires the established CAD geometric model of the automobile body, the CAD geometric model of the automobile body includes a door and a body, and the door is in a state of a maximum design opening angle.

[0024] Generally, in the process of automobile research and development, the product design engineer determines the engineering boundary and establishes the CAD geometric model of the body and door according to the general layout and shape of the developed body, and then submits it to the structural analysis engineer for analysis and evaluation. In this embodiment, in order to analyze the over-opening of the car door, the structural analysis engineer imports ...

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Abstract

The invention provides a method for analyzing excessive opening of car doors. The method comprises the following steps: obtaining an established car body CAD geometric model through Hypermesh, wherein the car body CAD geometric model comprises a car door and a car body, and the car door is in a maximum design opening angle state; establishing a finite element model of the car body CAD geometric model through the Hypermesh, and creating a K file, wherein the K file comprises contact relation information, material information, boundary condition information, load information and output result information, the boundary condition information comprises a full-constraint type of a section node of the car body, load application in the load information indicates applying gravity field load with 1 gravity acceleration on the finite element model and applying a rotation angle speed along the opening direction on the car door, and an output result in the output result information comprises a rotation angle of the car door and stress of a sheet metal part; and solving the K file through LS-DYNA so as to obtain a result file related to the output result.

Description

technical field [0001] The invention relates to the technical field of automobile product design, in particular to a method for analyzing the over-opening of an automobile door. Background technique [0002] The door is an important part of the car, which together with the body constitutes the seating space, and provides the passage for the driver and passengers to enter and exit the vehicle. When the door is opened normally, there is generally no over-opening phenomenon. Over-opening of the door is a misoperation by the user. Although this situation rarely occurs, if the performance of the door becomes poor after occasional over-opening, or even cannot be closed normally, then It will cause users to worry about the quality and performance of the car, reduce the user's loyalty to the car brand, and affect the image of the car brand. Therefore, the door over-opening analysis has become an important item in the door analysis. [0003] The door over-opening analysis refers to ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 王友华段龙杨丁朝阳余显忠黄晖邱星陈为欢孙竑
Owner JIANGLING MOTORS
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