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A device and method for testing vibration absorber frequency

A vibration absorber and frequency technology, which is applied in the field of devices for testing the frequency of vibration absorbers, can solve the problems of lowering work efficiency, inconsistency of test results, and non-uniformity of single vibration absorbers, and achieves the effect of improving the pass rate

Active Publication Date: 2019-04-09
CHONGQING CHANGAN AUTOMOBILE CO LTD
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AI Technical Summary

Problems solved by technology

[0004] At present, the test methods for vibration absorber frequency include bench test, real vehicle test and ground bonding test, etc. However, automobile OEMs and suppliers do not have a unified test device for single shock absorbers, and the detection methods are also different, and due to some The bench rigidity used by the supplier is relatively weak, which is quite different from that of the OEM, which leads to the inconsistency of the test results of both parties, which is not conducive to project development and reduces work efficiency

Method used

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  • A device and method for testing vibration absorber frequency
  • A device and method for testing vibration absorber frequency
  • A device and method for testing vibration absorber frequency

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] The device for testing the vibration absorber frequency of the present invention includes a data acquisition front end, a force hammer 9, an acceleration sensor and a vibration absorber fixing device, such as figure 1 As shown, the shock absorber fixing device includes a floor 1 and a base 4, the base is L-shaped, its horizontal part is fixed to the floor, and its vertical part is provided with two vertical first strip-shaped holes 7 , the spacing between the two first strip-shaped holes is equal to the spacing between the two bolt holes 13 on the mounting bracket of the vibration absorber to be tested, and the first bolt 6 passes through the two first strip-shaped holes Holes 7 and two bolt holes 13 on the absorber mounting bracket 12 secure the absorber to the vertical portion of the base. The two vertical first strip-shaped holes provided on the vertical pa...

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Abstract

The invention relates to a device for testing a vibration absorber frequency. The device comprises a data acquisition front-end, a hammer, an acceleration sensor and a vibration absorber fixing device. The device is characterized in that the vibration absorber fixing device comprises floor and a base; ththe base is L-shaped; the horizontal part of the base is fixed on the floor; and the vibration absorber is fixed on the vertical part of the base. The device can test the vibration absorber frequency, thereby facilitating unification of testing and acceptance of a vibration absorber by an automotive original equipment manufacturer and a supplier. The invention further provides a method for testing the vibration absorber frequency.

Description

technical field [0001] The invention belongs to the field of automobile NVH performance, in particular to a device and method for testing the frequency of a vibration absorber. Background technique [0002] With the rapid development of the automobile industry and the continuous improvement of users' requirements for automobile comfort, automobile NVH control technology is becoming more and more important. In automotive NVH performance control, shock absorbers are often used to absorb system energy and control system vibration. [0003] The vibration absorber is a spring mass system. The vibration absorber is mainly used to attenuate the resonance generated by the components or systems during the operation of the car, which can effectively improve the NVH problem caused by the resonance. Such as figure 2 As shown, the shock absorber 8 includes a mounting bracket 12 and a mass block 10 connected to the mounting bracket through a vulcanized rubber 11. Two bolt holes 13 are p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H1/14
CPCG01H1/14
Inventor 许建闵福江余雄鹰李沙刘勇文伟宫世超
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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