Improving Brake squeal propensitiy prediction by model updating

Zhang, Z; Oberst, S; Williams, JJR; Lai, JCS

Improving Brake squeal propensitiy prediction by model updating

Zhang, Z Oberst, S

Williams, JJR Lai, JCS

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Publication Type:: Conference Proceeding
Citation:: Acoustics 2015 Hunter Valley, 2015
Issue Date:: 2015-01-01

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Field	Value	Language
dc.contributor.author	Zhang, Z	en_US
dc.contributor.author	Oberst, S https://orcid.org/0000-0002-1388-2749	en_US
dc.contributor.author	Williams, JJR	en_US
dc.contributor.author	Lai, JCS	en_US
dc.date.issued	2015-01-01	en_US
dc.identifier.citation	Acoustics 2015 Hunter Valley, 2015	en_US
dc.identifier.uri	http://hdl.handle.net/10453/121323
dc.description.abstract	Brake squeal as a significant warranty-claim related costs problem to the automotive industry is difficult to model numerically and analyse because of inherent nonlinearities, uncertainties in material properties, contact and boundary conditions, and system complexity. Often, model components are linearised and not experimentally validated. Sophisticated contact or friction models as well as stiffness in joints are often not considered owing to difficulties in experimental validation. In this study, a full brake system is modally updated at the component level and then at the subassembly level (pad assembly alone, pad in bracket). Squeal prediction using the complex eigenvalue analysis on a finite element model of the system is compared to squeal results from a noise dynamometer test. The results are discussed with respect to further refinement of the modelling approach and improvements to brake squeal prediction.	en_US
dc.relation.ispartof	Acoustics 2015 Hunter Valley	en_US
dc.title	Improving Brake squeal propensitiy prediction by model updating	en_US
dc.type	Conference Proceeding
utslib.for	010204 Dynamical Systems in Applications	en_US
utslib.for	091301 Acoustics and Noise Control (excl. Architectural Acoustics)	en_US
utslib.for	091304 Dynamics, Vibration and Vibration Control	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US

Abstract:

Brake squeal as a significant warranty-claim related costs problem to the automotive industry is difficult to model numerically and analyse because of inherent nonlinearities, uncertainties in material properties, contact and boundary conditions, and system complexity. Often, model components are linearised and not experimentally validated. Sophisticated contact or friction models as well as stiffness in joints are often not considered owing to difficulties in experimental validation. In this study, a full brake system is modally updated at the component level and then at the subassembly level (pad assembly alone, pad in bracket). Squeal prediction using the complex eigenvalue analysis on a finite element model of the system is compared to squeal results from a noise dynamometer test. The results are discussed with respect to further refinement of the modelling approach and improvements to brake squeal prediction.

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http://hdl.handle.net/10453/121323