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.
|Translated title of the contribution||Linear eigenvalue analysis of the disc-brake squeal problem|
|Pages (from-to)||1546 - 1563|
|Number of pages||18|
|Journal||International Journal for Numerical Methods in Engineering|
|Publication status||Published - Nov 2004|