Title: Suppression of drum brake squeal through structural modifications using finite element method

Authors: Abd Rahim Abu-Bakar, Mohd Reaza Buang, Mohd Zam Abdul Rashid, Roslan Abdul Rahman

Addresses: Department of Automotive Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia. ' Department of Automotive Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia. ' Goodyear Malaysia Berhad, Lot 51, Jalan Persiaran Selangor, Kawasan Perindustrian Shah Alam, Seksyen 15, 40000 Selangor, Malaysia. ' Department of Applied Mechanics, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Malaysia

Abstract: Reducing squeal from brakes system has become a challenging task for brake engineers. To date, a large number of proposals have been implemented in tackling disk brake squeal but very few solutions have been forwarded in drum brake assembly. This paper attempts to propose a solution to reduce drum brake squeal through structural modifications by using the Finite Element (FE) method. A three-dimensional FE model of an actual drum brake system is developed and validated. First, the baseline FE model is simulated to predict squeal and then several structural modifications are proposed. Finally, dynamic transient analysis is performed for selected modified models in order to confirm predicted results obtained from complex eigenvalue analysis.

Keywords: drum brake squeal; FEM; finite element method; structural modifications; complex eigenvalue; transient analysis; vehicle braking; vehicle design.

DOI: 10.1504/IJVD.2009.027113

International Journal of Vehicle Design, 2009 Vol.51 No.1/2, pp.3 - 20

Published online: 15 Jul 2009 *

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