EHTC 2009

Optimization of Brakes Systems

Dr. Ronaldo F. Nunes, Daimler AG

This paper presents the post-processing capability implemented in HyperWorks tool in order to address the automotive brake squeal problem.

Based on traditional and favourite approach by the automotive industry, i.e., complex eigenvalue analysis, the main focus is to give more possibility to understand the squeal problem complexity.

The main idea is to cover the acoustic behaviour behind the critical squeal frequency. In this regard, the acoustic intensity, the input power and the acoustic intensity flow will be introduced and applied to a numerical example. Finally, the main issues to be concerned in this application will be discussed with advantages and disadvantages of the proposed post-processing tool.

 

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