Shock absorber noise detection device and method

A technology of noise detection and shock absorber, which is applied in the direction of measuring devices, vehicle suspension/shock absorbing mechanism testing, instruments, etc., and can solve problems such as ineffectiveness

Active Publication Date: 2010-10-27
SICHUAN NINGJIANG SHANCHUAN MACHINERY
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Problems solved by technology

At present, because there is no suitable detection technology and evaluation me...

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  • Shock absorber noise detection device and method
  • Shock absorber noise detection device and method
  • Shock absorber noise detection device and method

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Embodiment Construction

[0012] The shock absorber noise detection system of the present invention is composed of a dynamometer and a signal acquisition and processing system, wherein the signal acquisition and processing system is formed by sequentially connecting a sensor, a signal acquisition system and a signal analysis system. Under certain temperature conditions, the dynamometer Apply a sinusoidal excitation with a certain amplitude and frequency to the shock absorber, and the sensor and signal acquisition system collects data of various signals such as acceleration, displacement, and sound pressure on the shock absorber, and transmits these signals to the signal analysis system for processing , to obtain the evaluation limit of the shock absorber noise under different conditions, which is used as the evaluation basis for the noise level of the shock absorber. Among them, the above-mentioned sensors can be respectively selected from the sound pressure sensor 4 , the acceleration sensor 5 and the ...

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Abstract

The invention provides a shock absorber noise detection device. The device comprises an indicator, and a sensor, a signal acquisition system and a signal analysis system which are connected in turn. When the shock absorber is under sinusoidal excitation with certain vibration amplitude and frequency and a certain temperature, the shock absorber noise detection device performs data acquisition, data conversion and data post-treatment to various signals such as acceleration, displacement and acoustic pressure to obtain the judgment limit values of the noise of the shock absorber in different conditions, and the limit values are used as the judgment standards of the noise level of the shock absorber. By using the shock absorber noise detection and judgment method, the judgment standards of noise can be determined; and after the judgment standards are determined, the same method can be adopted to screen noise to the same type of shock absorber products on the production line without verifying on the finished automobile so that essential data and control basis can be accumulated for the noise control of the shock absorber and optimization direction is pointed out.

Description

technical field [0001] The invention relates to a device and a detection method applied to the noise detection of a vehicle shock absorber. Background technique [0002] Shock absorber noise has always plagued shock absorber companies and vehicle manufacturers, and is also a persistent problem in the entire industry. It causes huge quality losses every year and directly affects the reputation of products in the market. At present, because there is no suitable detection technology and evaluation method, the noise control of the shock absorber is aimless and the effect is not great. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a detection device for shock absorber noise. [0004] The present invention also provides a method for detecting the noise of the shock absorber. [0005] The technical solution adopted by the present invention to solve the technical problem is: the shock absorber noise detection device ...

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Application Information

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IPC IPC(8): G01H17/00G01M17/04
Inventor 张国刚魏天贵谭文峰
Owner SICHUAN NINGJIANG SHANCHUAN MACHINERY
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