Int. J. of Vehicle Design   »   2016 Vol.72, No.4

 

 

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.2016.10003029

 

Int. J. of Vehicle Design, 2016 Vol.72, No.4, pp.354 - 371

 

Available online: 09 Feb 2017

 

 

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