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Simple models to investigate the effect of velocity dependent friction on disc brake squeal noise

Shin, K., Brennan, M.J., Yong-Goo, J. and JaeEung, O. (2004) Simple models to investigate the effect of velocity dependent friction on disc brake squeal noise International Journal of Automotive Technology, 5, (1), pp. 61-67.

Record type: Article


This paper suggests two simple two-degree-of-freedom models to describe the dynamical interaction between the pad and the disc of a disc brake system. Separate models for in-plane and out-of-plane vibration are described. Although a brake pad and disc have many modes of vibration, the interaction between a single mode of each component is considered as this is thought to be crucial for brake noise. For both models, the pad and the disc are connected by a sliding friction interface having a velocity dependent friction coefficient.
In this paper, it is shown that this friction model acts as negative damping in the system that describes the in-plane vibration, and as negative stiffness in system that describes the out-of-plane vibration. Stability analysis is performed to investigate the conditions under which the systems become unstable. The results of the stability analysis show that the damping is the most important parameter for in-plane vibration, whereas the stiffness is the most important parameter for the out-of-plane vibration.

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Published date: 2004


Local EPrints ID: 28101
PURE UUID: 88423801-d184-4622-889e-9fa40df83381

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Date deposited: 28 Apr 2006
Last modified: 17 Jul 2017 16:02

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Author: K. Shin
Author: M.J. Brennan
Author: J. Yong-Goo
Author: O. JaeEung

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