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A cyclosymmetric beam model and a spring-supported annular plate model for automotive disc brake vibration

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journal contribution
posted on 21.08.2012 by Dennis Boennen, Stephen Walsh
This paper discusses two simplified analytical models for automotive disc brake vibration which can be used to complement more complex finite element methods. The first model approximates the brake disc as a simple beam structure with cyclosymmetric boundary conditions. Since the beam model is a one-dimensional approach, modelling of the inner boundary condition of the brake disc, at the interface of the brake rotor and the central hat, is not possible. The second model, which is established based upon Kirchhoff’s thin plate theory, is presented in this paper in order to incorporate the vibrational deformation at the hat-disc interface. The mode shapes, natural frequencies, and forced response of a static disc are calculated using different inner boundary conditions. Among others, the spring-supported boundary condition is proposed and applied in this paper to make appropriate predictions. The predicted results are compared with measurements of the vibration characteristics of a solid brake disc mounted upon a static test rig. These comparisons demonstrate that the most appropriate model for the inner boundary condition of the measured brake disc is the proposed spring-supported inner boundary condition.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Citation

BOENNEN, D. and WALSH, S.J., 2012. A cyclosymmetric beam model and a spring-supported annular plate model for automotive disc brake vibration. ISRN Mechanical Engineering, 2012, article 739384.

Publisher

International Scholarly Research Network © Dennis Boennen and Stephen James Walsh

Version

VoR (Version of Record)

Publication date

2012

Notes

This article was published in the journal ISRN Mechanical Engineering.

ISSN

2090-5122

eISSN

2090-5130

Language

en

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