Title: Drum brake noise reduction

Authors: Sushant Parisa Magdum; Samir B. Kumbhar; Karanam Venkata Mangaraju; Venkatesh G.

Addresses: K.E. Societies, Rajarambapu Institute of Technology, Sakharale, Dist. Sangali, Maharashtra, 415414, India ' Faculty of Mechanical Engineering, K.E. Societies, Rajarambapu Institute of Technology, Sakharale, Maharashtra, 415414, India ' R&D Chassis Section Head, TVS Motor Company Ltd., Hosur, 635109, Tamilnadu, India ' R&D Brakes Lab Head, TVS Motor Company Ltd., Hosur, 635109, Tamilnadu, India

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.

Keywords: squeal noise; drum brake; full nonlinear perturbed modal analysis; stability; stopping distance; self excited vibrations; liner modifications; vehicle performance; brake lining; frictional force; braking force.

DOI: 10.1504/IJVNV.2020.112437

International Journal of Vehicle Noise and Vibration, 2020 Vol.16 No.1/2, pp.58 - 68

Received: 09 Jul 2019
Accepted: 16 Mar 2020
Published online: 15 Jan 2021 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article