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Device and method for testing dynamic sound tightness of closure member of whole vehicle

A closure and dynamic technology, which is applied in the field of testing the dynamic sound tightness of the closure of the whole vehicle, can solve the problems of not reflecting the working state of the sealing strip of the closure, the lack of a good measurement method for the quantitative evaluation of the compression deformation characteristics, and the high cost. , to achieve the effect of good repeatability, low cost and easy realization

Inactive Publication Date: 2016-08-24
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Due to the complexity of the material and structure of the sealing strip of the automobile closure, so far there is no good measurement method for its compression deformation characteristics, which can accurately obtain quantitative evaluation.
The existing finite element analysis and real vehicle test methods are all testing the working deformation of the sealing strip of the closure when the car is in a static state, which cannot reflect the working state of the sealing strip of the closure when the car is dynamically sealed during actual driving
There are few test methods for dynamic sealing effect, and the idea of ​​testing in a wind tunnel laboratory is feasible, but the cost is expensive

Method used

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  • Device and method for testing dynamic sound tightness of closure member of whole vehicle
  • Device and method for testing dynamic sound tightness of closure member of whole vehicle

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Embodiment Construction

[0021] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0022] see figure 1 , the test device of the present invention is made up of two parts of air leakage test system and ultrasonic detection system, and air leakage test system comprises blower fan 6, air supply hose 3, micromanometer 5, connecting plate 2 and silica gel tube 4, and ultrasonic detection system comprises Ultrasonic signal sounder 7, ultrasonic detector 10 and flexible detector 8.

[0023] The installation and test...

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Abstract

The invention relates to a device and method for testing the dynamic sound tightness of a closure member of a whole vehicle, and the device consists of an air leakage testing system and a supersonic detection system. The air leakage testing system comprises a fan, an air supply flexible pipe, a connecting plate, a silicone tube, and a micromanometer, wherein the fan, the air supply flexible pipe, the connecting plate, the silicone tube and the micromanometer are connected sequentially. The supersonic detection system comprises a supersonic signal generator, a supersonic detector, and a flexible detector. After the air leakage testing system is connected with a to-be-tested vehicle, the air leakage testing system supplies air to the vehicle quantitatively and enables the pressure on the surface of the closure member to reach a specified value. At this moment, a sealing strip of the closure member of the whole vehicle is in a dynamic sealing state, and then the supersonic detection system detects the supersonic leakage of the closure member of the whole vehicle and evaluates the dynamic sealing effect. The device is easy to implement, is low in cost, is simple in test conditions, and is good in result repeatability.

Description

technical field [0001] The invention relates to the technical field of automobile sealing, in particular to a method for testing the dynamic sound tightness of a pair of closing parts of a complete vehicle. Background technique [0002] Due to the complexity of the material and structure of the sealing strip of the automobile closure, so far there is no good measurement method for its compression deformation characteristics, which can accurately obtain quantitative evaluation. The existing finite element analysis and real vehicle test methods are all for testing the working deformation of the sealing strip of the closure when the car is in a static state, which cannot reflect the working state of the sealing strip of the closure when the car is dynamically sealed during actual driving. There are few testing methods for the dynamic sealing effect, and the idea of ​​testing in a wind tunnel laboratory is feasible, but the cost is expensive. Contents of the invention [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 朱冠妮张军章晓轩张思文刘宏玉令宇龙蔡海波
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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