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Breaking of symmetries for stabilization of rotating continua in frictional contact

Spelsberg-Korspeter, Gottfried (2009):
Breaking of symmetries for stabilization of rotating continua in frictional contact.
332, In: Journal of Sound and Vibration, (4-5), Elsevier, pp. 798-807, [Online-Edition: http://dx.doi.org/10.1016/j.jsv.2008.11.033],
[Article]

Item Type: Article
Erschienen: 2009
Creators: Spelsberg-Korspeter, Gottfried
Title: Breaking of symmetries for stabilization of rotating continua in frictional contact
Language: English
Journal or Publication Title: Journal of Sound and Vibration
Volume: 332
Number: 4-5
Publisher: Elsevier
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Dynamics and Vibrations
16 Department of Mechanical Engineering > Research group System Reliability, Adaptive Structures, and Machine Acoustics (SAM)
Date Deposited: 19 Sep 2012 14:18
Official URL: http://dx.doi.org/10.1016/j.jsv.2008.11.033
Identification Number: doi:10.1016/j.jsv.2008.11.033
Alternative Abstract:
Alternative abstract Language
Rotating structures subject to frictional contact are susceptible to self-excited vibrations that are responsible for noise problems. In previous work the underlying mechanism has been explained through mathematical–mechanical models. From practical experience it is known that breaking the symmetry of a rotor can have a stabilizing effect. The present paper is devoted to a mathematical justification of this phenomenon. At the same time a method for a quantitative investigation of the influence of asymmetries on the stability behavior is outlined. As an example a rotating annular Kirchhoff plate in contact with friction pads is studied serving as a minimal model for brake squeal. A possible application of the results is the support of the design process for squeal free brake rotors where currently only experimental methods yield information about the tendency of an asymmetric brake rotor to squeal.English
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