Analysing The Disc Brake Squeal: Review And Summary

This paper reviews the most important research works that was carried out on disc brake squeal and the factors affecting it. The paper starts with reviewing the experimental works conducted to analyze disc brake squeal. The next section focuses on review the simulation of disc brake system with finite element software in order to predict the squeal condition. The sequel was investigated by using modal participation method and complex eigenvalue analysis. The paper finished with a brief review of the available literature and also gives a result summery. The results of reading this paper will give the researcher a comprehensive collaboration between the theoretical and experimental works, beside that it will guide the researcher to find his research objective and problem statement easy. Understanding brake squeal and friction-induced noise requires complicated analysis due to complexity of brake system. The complete analysis can be done first by studying the brake friction relation at low speed and compare it with the experimental works. Second study the brake noise at high frequency and its relation with the contact stiffness. Third study the effect of changing the contact pressure and contact angle.