Numerical Investigation of the Influence of Friction Coefficient on Brake Groan

Xian Jie Meng

doi:10.4028/www.scientific.net/AMM.44-47.1923

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 44-47Numerical Investigation of the Influence of...

Numerical Investigation of the Influence of Friction Coefficient on Brake Groan

Abstract:

A two degrees of freedom nonlinear dynamics model of self-excited vibration induced by dry-friction of brake disk and pads is built firstly, the stability of vibration system at the equilibrium points is analyzed using the nonlinear dynamics theory. Finally the numerical method is taken to study the impacts of friction coefficient on brake groan. The calculation result shows that with the increase of kinetic friction coefficient /or the decrease of difference value between static friction coefficient and kinetic friction coefficient can prevent or restrain self-excited vibration from happening.