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A kind of test method and device for abnormal sound of vehicle door impact

A door and abnormal sound technology, applied in geometric CAD, design optimization/simulation, special data processing applications, etc., can solve the problems of high optimization cost, long cycle, late discovery time, etc., to achieve high reliability and accuracy, saving cost effect

Active Publication Date: 2022-07-01
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in response to this problem, most domestic automobile manufacturers generally conduct abnormal noise evaluation after the prototype vehicle trial production is completed, resulting in late discovery of the problem, high cost of problem optimization, and long cycle time

Method used

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  • A kind of test method and device for abnormal sound of vehicle door impact
  • A kind of test method and device for abnormal sound of vehicle door impact

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0034] See figure 1 , figure 1 Shown is a flow chart of a method for testing the abnormal noise of vehicle door impact provided by the first embodiment of the present invention. The method for testing the abnormal sound of vehicle door impact specifically includes:

[0035] Step S10 : constructing a finite element model of the target vehicle door and the vehicle body; the target vehicle door is installed on the vehicle body.

[0036] In step S10, the constructed finite element model of the target door and the vehicle body is a simulation model. In this embodiment, the vehicle body may be a complete vehicle outside the target door, or may be a part of the vehicle except for the target door, and the part should include a door frame for installing the target door. Specifically, the 3D digital model of the whole vehicle can be used to establish the TB (Trim Body) finite element model of the target door and body in the finite element software to complete the geometric model proc...

no. 2 example

[0066] see figure 2 , based on the same inventive concept, figure 2 A schematic structural diagram of a vehicle door impact abnormal sound test device 300 provided by the second embodiment of the present invention is shown in FIG.

[0067] The vehicle door impact abnormal sound test device 300 includes:

[0068] a model building module 301, used to build a finite element model of a target vehicle door and a vehicle body; the target vehicle door is installed on the vehicle body;

[0069] A conditional constraint module 302, configured to perform conditional constraints on the finite element model based on the hinge shaft of the target vehicle door, the locking point of the target vehicle door, and the vehicle body to obtain a calculation model;

[0070] The simulation module 303 is configured to perform door-closing collision simulation based on the calculation model, and obtain the minimum distance in the target vehicle door; wherein, the minimum distance is the minimum no...

no. 3 example

[0077] Based on the same inventive concept, another embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the steps of any one of the methods in the first embodiment.

[0078] It should be noted that, in the computer-readable storage medium provided by the embodiment of the present invention, when the program is executed by the processor, the specific implementation of each step and the resulting technical effect are the same as the foregoing method embodiments. For brief description, this embodiment For the places not mentioned in the examples, reference may be made to the corresponding contents in the foregoing method embodiments.

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Abstract

The invention discloses a method and device for testing abnormal noise of vehicle door impact, wherein the method comprises: constructing a finite element model of a target vehicle door and a vehicle body; the target vehicle door is installed on the vehicle body; The locking point and the vehicle body are subjected to conditional constraints on the finite element model to obtain the calculation model; based on the calculation model, the door closing collision simulation is carried out to obtain the minimum distance within the target door; wherein, the minimum distance is the installation components on the outer panel of the target door and the inner The minimum normal distance of the board; determine whether the minimum distance is smaller than the preset abnormal sound distance threshold; if so, determine that the closing action of the target door will produce abnormal sound; otherwise, determine that the closing action of the target door will not produce abnormal sound. The method of the invention can predict whether an abnormal knocking noise will occur in the vehicle door in the early stage of structural design of the vehicle door, and has high reliability and accuracy, improves the evaluation efficiency of the abnormal noise of the vehicle door, and saves the cost.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a method and a device for testing abnormal noise of vehicle door impact. Background technique [0002] The abnormal sound produced when the vehicle is closed is easily perceived by consumers, leading to complaints or even complaints, affecting the car experience. The door system of the vehicle rotates around the hinge, and when the door is closed, it contacts and collides with the door frame, and some parts inside the door are greatly deformed, resulting in abnormal impact noise. [0003] In particular, the window glass lift motor, which has a relatively large mass, is often cantilevered and fixed on the inner panel of the door with a bracket. When the door is closed, it is easy to deform and collide with the inner panel, resulting in abnormal noise. At present, in response to this problem, most domestic automobile manufacturers generally conduct abnormal noise evaluation af...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/15G06F30/23G06F111/04
CPCG06F30/15G06F30/23G06F2111/04
Inventor 张浩张光刘浩高小清唐丹
Owner DONGFENG MOTOR CORP HUBEI
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