Contribution Analysis of Assembled Brake System to Reduce Squealing

Brake noise is a problem that is still being studied owing to continuous issues in the vehicle industry, and many countermeasures have been suggested using experimental and simulation approaches. The assembled brake system comprises several subparts, and a contribution analysis is an efficient solut...

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Bibliographic Details
Published inApplied sciences Vol. 12; no. 21; p. 11232
Main Authors Kwon, Seong-Jin, Kim, Chan-Jung
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.11.2022
Subjects
assembled brake system
Brakes
chassis dynamometer test
contribution index
Design optimization
Eigenvalues
Friction
Mathematical models
Noise reduction
Software
spectral response vector
Spectral sensitivity
squealing
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Summary:Brake noise is a problem that is still being studied owing to continuous issues in the vehicle industry, and many countermeasures have been suggested using experimental and simulation approaches. The assembled brake system comprises several subparts, and a contribution analysis is an efficient solution for selecting the subpart with the most influence on squealing. In this study, a finite-element model of the assembled brake system was verified with modal test results for each part. Then, a forced response analysis of the assembled brake system model was conducted to obtain the spectral response vector of the subparts under white-noise excitation. A contribution analysis was formulated by calculating the similarity between the total and partial response vectors of each part and deriving the contribution index of all subparts of interest. The brake pad was selected as the target of design modification, and the feasibility was validated using an experimental chassis dynamometer test.
ISSN:2076-3417
2076-3417
DOI:10.3390/app122111232