• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2019, Vol. 55 ›› Issue (4): 75-83.doi: 10.3901/JME.2019.04.075

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Design and Development of Three-stage Stiffness Clutch Damper and Its Damping Performance Analysis

WU Huwei1, WU Guangqiang1,2, CHEN Xiang3, WANG Junwei3, GUO Jiwei3, YUAN Renfei1, SUN Shuo1   

  1. 1. School of Automotive Studies, Tongji University, Shanghai 201804;
    2. Institute of Industrial Science, University of Tokyo, Tokyo 153-8505;
    3. Shanghai Sachs Powertrain Components Systems Co., Ltd, Shanghai 201708
  • Received:2018-04-16 Revised:2018-12-10 Online:2019-02-20 Published:2019-02-20

Abstract: In order to solve severe transmission gear rattle problem on the vehicle creeping condition, a new three-stage stiffness clutch damper is designed and developed. The performance of the new three-stage stiffness clutch damper is validated by specific bench test and vehicle experiment. Firstly, characteristics of a conventional driven-disc torsional damper are introduced. Then a new three-stage stiffness clutch damper is proposed innovatively and its working principle is described. Secondly, by the specific bench test, torque transmission property of a conditional driven-disc clutch damper and a new three-stage stiffness clutch damper are obtained. Mechanical structure and performance parameters design of the new three-stage stiffness clutch damper are validated. Finally, experimental test process and sensor layout are designed in the vehicle road experiment. The damping performance of a conventional driven-disc torsional damper and the three-stage stiffness clutch damper are compared through these results in time domain, frequency domain and time-frequency domain. It's concluded that the new three-stage stiffness clutch damper could be adopted to inhibit severe driveline torsional vibration and transmission gear rattle problem on the vehicle creeping condition.

Key words: bench test, creeping condition, gear rattle, three-stage stiffness clutch damper, vehicle experiment

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