吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (2): 305-310.doi: 10.13229/j.cnki.jdxbgxb201402005

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Experiment of transfer path of brake judder

CHEN Shu-ming1,2, WANG Deng-feng1, JI Feng1, SHI Tian-ze1, LIANG Jie1   

  1. 1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China;
    2. Key Laboratory of Advanced Manufacturing Technology for Automobile Parts, Ministry of Education, Chongqing University of Technology, Chongqing 400054, China
  • Received:2012-01-13 Online:2014-02-01 Published:2014-02-01

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Abstract:

In order to obtain the transfer path of the steering wheel judder caused by brake, the running conditions of the road surface were simulated on the rotary drum test bench, the brake judder phenomenon recurred. The vibration accelerations of the caliper, caliper bracket, knuckle arm, tie rod, universal joint, and steering wheel were acquired. Meanwhile, the vibration signals of the steering wheel were analyzed at vertical, lateral, and radial directions. The first and second order frequencies were confirmed through order analysis. The transfer path from caliper to steering wheel was analyzed. The intermediate links were also analyzed during vibration transferring from caliper to steering wheel. The experiment results show that the transfer path of the brake judder is mainly caliper-caliper bracket-knuckle arm-tie rod-universal joint-steering wheel. The brake judder was enlarged or diminished during the transfer process, and it was transferred to the steering wheel after enlarging and diminishing at the three directions.

Key words: vehicle engineering, brake judder, steering wheel, transfer path

CLC Number: 

  • U467.4

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