Complex Eigen Value Analysis of Automotive Disc Brake for Squeal Reduction

Abstract

The main aim of present work lies in the fact that squeal of disc brake depends on many parameters. Evaluating the brake system using traditional studies that is by changing one factor at a time is not sufficient. In order to improve design of brake components there is a necessity of a new approach to investigate the effects of combination of several parameters. In this work Finite Element Technique which is widely used in engineering fields is preferred for analysis on brake squeal. This work deals with improvising 3 dimensional model of finite element model of brake system which includes assembly of disc brake and steering knuckle. Complex Eigen Value Analysis (CAE) is used to predict unstable frequencies ranging from 1 kilo hertz to 20 kilo hertz. Different materials were implemented for individual components of brake system to reduce unstable frequencies and to shift squeal frequencies.