Squeal suppression approaches of a disc brake assembly

Brake squeal is an annoying noise emanating from a car disc brake and is typically a single-tone, high-pitch noise. In general, brake noise can be divided into three groups: low frequency noise (below 1 kHz), low frequency squeal (1 kHz to 3 kHz), and high frequency squeal (4 to 15 kHz). To date, th...

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Main Author:	Saw, Chun Lin
Format:	Thesis
Language:	English
Published:	2009
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/10067/1/SawChunLinMFKM2009.pdf
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id	my-utm-ep.10067
record_format	uketd_dc
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Saw, Chun Lin Squeal suppression approaches of a disc brake assembly
description	Brake squeal is an annoying noise emanating from a car disc brake and is typically a single-tone, high-pitch noise. In general, brake noise can be divided into three groups: low frequency noise (below 1 kHz), low frequency squeal (1 kHz to 3 kHz), and high frequency squeal (4 to 15 kHz). To date, there are a number of approaches have been proposed and implemented to suppress disc brake squeal but very few are effective to suppress and eliminate it. This thesis proposes an approach to suppress disc brake squeal noise, ranging from 1 to 10 kHz, through structural modification using the finite element method. First, a three dimensional finite element (FE) model of a real disc brake assembly is developed and validated. Then, complex eigenvalue analysis made available in commercial FE software package is performed to determine stability of the brake system where positive real parts of the complex eigenvalue indicate unstable system and in turn exhibit squeal generation in the brake assembly. Then, various structural modifications on the disc, brake pad, caliper and carrier are proposed to reduce the brake squeal. A good modification should be able to reduce and eliminate squeal at various brake operating conditions.
format	Thesis
qualification_level	Master's degree
author	Saw, Chun Lin
author_facet	Saw, Chun Lin
author_sort	Saw, Chun Lin
title	Squeal suppression approaches of a disc brake assembly
title_short	Squeal suppression approaches of a disc brake assembly
title_full	Squeal suppression approaches of a disc brake assembly
title_fullStr	Squeal suppression approaches of a disc brake assembly
title_full_unstemmed	Squeal suppression approaches of a disc brake assembly
title_sort	squeal suppression approaches of a disc brake assembly
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2009
url	http://eprints.utm.my/id/eprint/10067/1/SawChunLinMFKM2009.pdf
_version_	1747814793012576256
spelling	my-utm-ep.100672018-06-25T01:30:57Z Squeal suppression approaches of a disc brake assembly 2009-04 Saw, Chun Lin TJ Mechanical engineering and machinery Brake squeal is an annoying noise emanating from a car disc brake and is typically a single-tone, high-pitch noise. In general, brake noise can be divided into three groups: low frequency noise (below 1 kHz), low frequency squeal (1 kHz to 3 kHz), and high frequency squeal (4 to 15 kHz). To date, there are a number of approaches have been proposed and implemented to suppress disc brake squeal but very few are effective to suppress and eliminate it. This thesis proposes an approach to suppress disc brake squeal noise, ranging from 1 to 10 kHz, through structural modification using the finite element method. First, a three dimensional finite element (FE) model of a real disc brake assembly is developed and validated. Then, complex eigenvalue analysis made available in commercial FE software package is performed to determine stability of the brake system where positive real parts of the complex eigenvalue indicate unstable system and in turn exhibit squeal generation in the brake assembly. Then, various structural modifications on the disc, brake pad, caliper and carrier are proposed to reduce the brake squeal. A good modification should be able to reduce and eliminate squeal at various brake operating conditions. 2009-04 Thesis http://eprints.utm.my/id/eprint/10067/ http://eprints.utm.my/id/eprint/10067/1/SawChunLinMFKM2009.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Mechanical Engineering Faculty of Mechanical Engineering 1. Papinniemi, A., Joseph C., Lai, S., Zhao, J. and Loader,L., 2002. “Brake squeal: a literature review”, Applied Acoustic.63(4), pp 391-400. 2. Kinkaid, N.M., O’Reilly, O.M. and Papadopolous, P., 2003. “Review of automotive disc brake squeal”, Journal of Sound and Vibration, Vol 267, pp105-166. 3. Ouyang, H., Friswell, M. I. and Mottershead, J. E., 2004. “Linear Eigenvalue analysis of the disc-brake squeal problem”, International Journal For Numerical Methods In Engineering, page 1546 – 1563. 4. Liu, W. and Pfeifer, J., 2000. “Reducing High Frequency Disc Brake Squeal by Pad Shape Optimization”, SAE Technical Paper No. 2000-01-0447. 5. Kumamoto, F., Kawai, K. and Baba, H., 2004. “A Study on Relationship between Pad Restraint Condition and Brake Squeal Generation”, SAE Techical Paper No. 2004-01-2801. 6. Neubauer, M., Niederberger, D. and Morari, M., 2006. “A Noval approach for Brake Squeal Control Using Shunted Piezoceramics”, SAE Technical Paper No. 2006-01-3198. 7. Dessouki, O., Drake, G. and Lowe, B., 2003. “Disc Brake : Diagnosis and Prevention”, SAE Technical Paper No. 2003-01-1618. 8. Park, C., Han, M. G. and Chu, S. S., 2001. “A Study on the Reduction of Disc Brake Squeal Using Complex Eigenvalue Analysis”, SAE Technical Paper No. 2001-01-3141. 9. Dai, Y., Patten, D. and Biswas, C., 2002. “Pad Distributed Parameter Study for Squeal Noise Reduction”, SAE Technical Paper No. 2002-01- 2609. 10. Breuer, B. and Dausend, U., 2003. “Advanced Brake Technology”, SAE International, USA. 11. Chen, F., 2007. “Disc Brake Squeal: An Overview, Society of Automotive Engineers”, SAE Technical Paper No. 2007-01-0587. 12. Flint, J., McDaniel, J. G. and Li, X., 2004. “Measurement and Simulation of the Complex Shear Modulus of Insulators”, SAE Technical Paper No. 2004-01-2799. 13. Yang, M., Afaneh, A. and Blaschke, P., 2003. “A Study of Disc Brake High Frequency Squeals and Disc-In-Plane/Out-of-plane Modes”, SAE Technical Paper No. 2003-01-1621. 14. Chargin, M. L., Dunne, L. W. and Herting, D. N., 2004. “Nonlinear Dynamics of Brake Squeal”, Finite Elements in Analysis and Design, Vol. 28, pp. 69-82. 15. Abu Bakar, A. R., Abdul Hamid, M. K., and Cao, Q., 2007. “Numerical Analysis of Disc Brake Squeal Considering Temperature Dependent Friction Coefficient”, Faculty of Mechanical Engineering, UTM. 16. Abu Bakar, A. R., “Disc Brake Squeal: A Prediction Methodology”, Faculty of Mechanical Engineering, UTM, ISBN 978-3-8364-3591-8. 17. Crolla, D. A. And Lang, A. M., 1991. “Brake noise and vibration-the state of art:Vehicle Tribology”, Leeds, England, pp.165-174. 18. Liles, G.D., 1989. “Analysis of disc brake squeal using finite element methods”, SAE Technical Paper No.891150. 19. Kung, S-W., Stelzer, G., Belsky, V. and Bajer, A., 2003. “Brake squeal analysis incorporating contact conditions and other nonlinear effects”, SAE Technical Paper No. 2003-01-3343.

Squeal suppression approaches of a disc brake assembly

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