Automotive brake squeal which is generated during brake application has become a major concern in automotive industry. Warranty costs for brake noise have been greatly increasing in recent years. Brake noise and vibration control are important for the improvement of vehicle quietness and passenger comfort. In this work, the mode coupling instability mechanism is discussed, and a method to estimate the critical value of friction coefficient is presented to predict the onset of brake squeal. A modal expansion method is developed to calculate eigenvalue and eigenvector sensitivities. Different types of mode couplings and their relationships with squeal are discussed. A reduced-order characteristic equation method based on the statically coupled eigenvalues and their derivatives is presented to estimate the critical value of friction coefficient. The significance of this method is that the critical value of friction coefficient can be predicted accurately without the need for a full complex eigenvalue analysis, making it possible to determine the sensitivity of system stability with respect to design parameters directly.
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ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
September 24–28, 2005
Long Beach, California, USA
Conference Sponsors:
- Design Engineering Division and Computers and Information in Engineering Division
ISBN:
0-7918-4738-1
PROCEEDINGS PAPER
Estimation of Critical Value of Friction Coefficient for Brake Squeal Analysis Available to Purchase
Jinchun Huang,
Jinchun Huang
Purdue University, West Lafayette, IN
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Charles M. Krousgrill,
Charles M. Krousgrill
Purdue University, West Lafayette, IN
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Anil K. Bajaj
Anil K. Bajaj
Purdue University, West Lafayette, IN
Search for other works by this author on:
Jinchun Huang
Purdue University, West Lafayette, IN
Charles M. Krousgrill
Purdue University, West Lafayette, IN
Anil K. Bajaj
Purdue University, West Lafayette, IN
Paper No:
DETC2005-85373, pp. 941-949; 9 pages
Published Online:
June 11, 2008
Citation
Huang, J, Krousgrill, CM, & Bajaj, AK. "Estimation of Critical Value of Friction Coefficient for Brake Squeal Analysis." Proceedings of the ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 1: 20th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C. Long Beach, California, USA. September 24–28, 2005. pp. 941-949. ASME. https://doi.org/10.1115/DETC2005-85373
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