Title: Optimal design of a brake pad for squeal noise reduction using response surface methodology

Authors: Nouby M. Ghazaly; Waleed F. Faris

Addresses: Automotive and Tractor Engineering Department, College of Engineering, Minia University, El-Minia – 61111, Egypt. ' Department of Mechanical Engineering, Faculty of Engineering, International Islamic University Malaysia (IIUM), P.O. Box 10, 50728 Kuala Lumpur, Malaysia

Abstract: The main objective of the present study is to introduce the optimal brake pad design in order to reduce squeal noise through the various design factors using statistical technique. A new approach is considered by integrating a commercial finite element software package (ABAQUS) with response surface methodology using software package (MINITAB). The finite element model of brake assembly is developed and correlated with hammering test of each brake component and brake assembly. The complex eigenvalue analysis is performed to assess the brake stability. Finally, response surface methodology is combined with complex eigenvalue analysis to identify the most design factors that significantly influence reduction of squeal noise. It is observed that increasing Young's modulus of brake pad in combination with increasing chamfer and reducing the distance between two slots reduces the squeal noise.

Keywords: disc brake squeal; finite element analysis; FEA; response surface methodology; RSM; optimal design; vehicle noise; noise reduction; vehicle braking; modelling.

DOI: 10.1504/IJVNV.2012.046463

International Journal of Vehicle Noise and Vibration, 2012 Vol.8 No.2, pp.125 - 135

Published online: 29 Aug 2014 *

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