Drum brake noise reduction
by Sushant Parisa Magdum; Samir B. Kumbhar; Karanam Venkata Mangaraju; Venkatesh G.
International Journal of Vehicle Noise and Vibration (IJVNV), Vol. 16, No. 1/2, 2020

Abstract: The reduction in drum brake squeal noise which greatly affects rider comfort as well as surrounding noise level has become a more challenging and trending problem in two-wheeler industries. In this paper, squeal noise is reduced by means of liner modification with different width and depth of the liner slot. Effect of change in liner geometry on squeal noise reduction is studied analytically and verified experimentally. A full nonlinear perturbed modal analysis is used to find the stability of the system. In order to validate the analytical results, experimental tests are carried at a certain slow speed having low brake pedal force. The experimental results show that the drum brake squeal noise is found to be reduced by a significant amount by applying the proposed method. It is found that significant modification in geometry of liner in view of noise reduction is not affecting much the vehicle performance.

Online publication date: Fri, 15-Jan-2021

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