An efficient approach to estimate critical value of friction coefficient and sensitivity analysis for brake squeal Online publication date: Wed, 15-Jul-2009
by Jinchun Huang, Charles M. Krousgrill, Anil K. Bajaj
International Journal of Vehicle Design (IJVD), Vol. 51, No. 1/2, 2009
Abstract: Automotive brake noise has been a major concern in automotive industry and structural modification is a practical and effective way to reduce it. Here, a new method to estimate the critical friction coefficient is summarised, and then a sensitivity analysis is developed. The key is a reduced-order characteristic equation for computing the elastically coupled system's eigenvalues and their derivatives. Based on this reduced-order equation, a sensitivity analysis of the steady-sliding stability with respect to lining stiffness and lining geometry is presented for a drum brake system. This analysis eliminates need for new system models or a full complex eigenvalue analysis.
Online publication date: Wed, 15-Jul-2009
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