Original title: Properties of damping couple at very high frequencies
Authors: Půst, Ladislav ; Pešek, Luděk ; Košina, Jan ; Radolfová, Alena
Document type: Papers
Conference/Event: Colloquium Dynamics of Machines 2014, Praha (CZ), 2014-02-04 / 2014-02-05
Year: 2014
Language: eng
Abstract: The contribution deals with the application of dry friction couples for noise and vibration damping at high frequency of several kHz what brings new problems connected with the small amplitudes of relative slipping motion of contact surfaces. The most important information from the of experimental results is knowledge that the value of evaluated friction coefficient can have different physical sense according to the magnitude of excitation force and to the frequency of applied vibrations. If amplitudes of motion are very small, then the external harmonic force produces only elastic micro-deformations of contacting bodies, where no slip occurs and then the traction contact force is proportional only to elastic deformation of the sample.
Keywords: damping; dry friction; high frequencies
Project no.: GA101/09/1166 (CEP)
Funding provider: GA ČR
Host item entry: Colloquim Dynamics of Machines 2014, ISBN 978-80-87012-50-5

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0233227

Permalink: http://www.nusl.cz/ntk/nusl-172814


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers