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Complex eugenvalue analysis and dynamic transient analysis in predicting disc brake squeal

Abu Bakar, Abd. Rahim and Ouyang, Huajiang (2006) Complex eugenvalue analysis and dynamic transient analysis in predicting disc brake squeal. International Journal Vehicle Noise & Vibration, 2 (2). p. 143. ISSN 1479-1471

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Abstract

There are typically two different methodologies that can be used to predict squeal in a disc brake, i.e., complex eigenvalue analysis and dynamic transient analysis. The positive real parts of complex eigenvalues indicate the degree of instability of the disc brake and are thought to associate with squeal occurrence or noise intensity. On the other hand, instability in the disc brake can be identified as an initially divergent vibration response using transient analysis. From the literature it appears that the two approaches were performed separately, and their correlation was not much investigated. In addition, there is more than one way of dealing the frictional contact in a disc brake. This paper explores a proper way of conducting both types of analyses and investigates the correlation between them for a large degree-of-freedom disc brake model. A detailed three-dimensional finite element model of a real disc brake is developed. Three different contact regimes are examined in order to assess the best correlation between the two methodologies

Item Type:Article
Uncontrolled Keywords:finite element method; FEM; complex eigenvalue analysis; dynamic transient analysis; disc brakes; squeal prediction; correlation; vehicle noise
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:8127
Deposited By:INVALID USER
Deposited On:27 Mar 2009 08:46
Last Modified:15 Apr 2009 02:09

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