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.
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.