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Understanding the occurrence of squealing noise using the temporal finite element method

Laurent Baillet 1, 2 S. d'Errico 1, 2 Bernard Laulagnet 3
1 LaMCoS - Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne]
2 TMI - Tribologie et Mécanique des Interfaces
LaMCoS - Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne]
3 LVA - Laboratoire Vibrations Acoustique
Abstract : This paper focuses on the vibration phenomena involved during friction contact and which lead to squealing noise. The simulation uses an explicit dynamic finite element method to describe the vibration of a pad brought into contact with a beam at constant velocity. In particular it describes a study on the influence of certain parameters on the occurrence of instability on pad and beam vibration. These parameters are beam velocity, the external force applied to the pad, the Coulomb friction coefficient, the pad's dimensions and Young modulus. The mechanism leading to the occurrence of squealing noise and unstable pad mode causing the onset of instability are shown. The vibration structure displays periodic peaks corresponding to the occurrence of impacts at the interface generated by steady-self pulse propagation.
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https://hal-insu.archives-ouvertes.fr/insu-00355162
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Submitted on : Thursday, January 22, 2009 - 11:40:30 AM
Last modification on : Tuesday, September 8, 2020 - 6:28:05 PM

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Laurent Baillet, S. d'Errico, Bernard Laulagnet. Understanding the occurrence of squealing noise using the temporal finite element method. Journal of Sound and Vibration, Elsevier, 2006, 292 (3-5), pp.443 - 460. ⟨10.1016/j.jsv.2005.08.001⟩. ⟨insu-00355162⟩

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