Linear Eigenvalue Analysis of the Disc-Brake Squeal Problem

Q Cao, H Ouyang (University of Liverpool), MI Friswell (University of Bristol) & JE Mottershead (University of Liverpool)

International Journal for Numerical Methods in Engineering, Vol. 62, No. 9, November 2004, pp. 1546-1563

Abstract

This paper presents a numerical method to calculate the unstable frequencies of a car disc brake and suggests a suitable analysis procedure. The stationary components of the disc brake are modelled using finite elements and the disc as a thin plate. The separate treatments of the stationary components and the rotating disc facilitate the modelling of the disc brake squeal as a moving load problem. Some uncertain system parameters of the stationary components and the disc are tuned to fit experimental results. A linear, complex-valued, asymmetric eigenvalue formulation is derived for the friction-induced vibration of the disc brake. Predicted unstable frequencies are compared with experimentally established squeal frequencies of a real car disc brake.

Paper Availability

This material has been published in the International Journal for Numerical Methods in Engineering, Vol. 62, No. 9, pp. 1546-1563, November 2004. Unfortunately the copyright agreement with Wiley InterScience does not allow for the PDF file of the paper to be available on this website. However the paper is available from the Wiley website - see the link below.


Link to paper using doi:10.1002/nme.1127

International Journal for Numerical Methods in Engineering on Wiley InterScience