An Experimental Investigation of Disk Brake Creep-Groan in Vehicles and Brake Dynamometer Correlation

Paper #:
  • 1999-01-3408

Published:
  • 1999-10-10
Citation:
Vadari, V. and Jackson, M., "An Experimental Investigation of Disk Brake Creep-Groan in Vehicles and Brake Dynamometer Correlation," SAE Technical Paper 1999-01-3408, 1999, https://doi.org/10.4271/1999-01-3408.
Pages:
18
Abstract:
Creep-groan in vehicles is a low frequency vibration problem that occurs at low brake pressures and extremely low speeds. Noise, Vibration and Harshness (NVH) problems in brakes in general and creep-groan in particular manifest in different forms. Creep-groan is an example of self-excited vibration caused by stick-slip phenomenon. Most researchers to date have been concentrating on the characteristics between the friction material and the contacting surfaces and its effect on creep-groan vibration. This paper, instead, describes creep-groan and its relationship to vehicle dynamics by looking at the suspension response to creep-groan and presents a solution to reduce effects due to creep-groan vibrations.
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