Research for Brake Creep Groan Noise with Dynamometer

Paper #:
  • 2012-01-1824

Published:
  • 2012-09-17
DOI:
  • 10.4271/2012-01-1824
Citation:
Jung, T. and Chung, S., "Research for Brake Creep Groan Noise with Dynamometer," SAE Int. J. Passeng. Cars - Mech. Syst. 5(4):1224-1229, 2012, doi:10.4271/2012-01-1824.
Pages:
6
Abstract:
This paper deals with creep groan noise in vehicles which is a low frequency vibration problem at 20∼500Hz that appears in low brake pressures and extremely low speed especially in automatic transmission car, where there is a transition from static to dynamic condition. The vibration causing the noise is commonly thought to result from friction force variation between brake disc and pad in stick-slip phenomena. Simulation results are confirmed through dynamometer testing. Then presented noise contribution factor analysis by experimental approach between chassis components.
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