Title: Effect of pad shapes on high-frequency disc brake squeal

Authors: Dihua Guan; Yongchang Du; Xiaofeng Wang

Addresses: State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China ' State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China ' State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China

Abstract: In this paper, a case study on reduction of high-frequency disc brake squeal by modification of pad shapes is presented. The aim is to give an intensive analysis on the phenomena of pad shape effects on disc high-frequency occurrence. For the analysis, a complete closed-loop coupled modal synthesis model is built. A series of analyses is performed, such as complex eigenvalue analysis, substructure modal composition analysis, substructure modal parameter sensitivity analysis, feed-in energy analysis, etc. The simulation analysis gives reasonable explanations of pad shape effects on high-frequency brake squeal occurrence.

Keywords: disc brakes; brake noise; high frequency squeal; pad shapes; brake pads; complex eigenvalue analysis; sensitivity; feed-in energy; modal analysis; substructure modal composition factor; vehicle design; vehicle noise; case study; simulation.

DOI: 10.1504/IJVD.2016.082361

International Journal of Vehicle Design, 2016 Vol.72 No.4, pp.354 - 371

Accepted: 09 Jun 2015
Published online: 21 Feb 2017 *

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