Title: A methodology for the determination of dynamic instabilities in a car disc brake

Authors: H. Ouyang, J.E. Mottershead, D.J. Brookfield, S. James, M.P. Cartmell

Addresses: Department of Engineering, The University of Liverpool, UK. Department of Engineering, The University of Liverpool, UK. Department of Engineering, The University of Liverpool, UK. Department of Engineering, The University of Liverpool, UK. Department of Engineering, The University of Liverpool, UK. Department of Mechanical Engineering, The University of Glasgow, UK.

Abstract: The dynamics of a car disc brake system is investigated by a combined analytical and numerical method. The disc is rotated past the stationary pads and calliper in sliding friction at constant speed. The modal data of the disc are obtained by means of modal testing whereby a dynamic model for the disc is derived based on the thin plate theory. Then the pads, calliper and mounting are analysed by means of the finite element method. Finally the equations of motion for the whole disc brake system are established through the interfaces between the pads and the disc. The stability of the vibrating system is studied by the method of state space.

Keywords: parametric vibration; resonance; squeal; instability; car disc brake; pad; calliper; friction; damping; stiffness; finite element method; state space method.

DOI: 10.1504/IJVD.2000.001894

International Journal of Vehicle Design, 2000 Vol.23 No.3/4, pp.241-262

Available online: 14 Dec 2003 *

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