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Properties of damping couple at very high frequencies
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SYSNO ASEP 0425473 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Properties of damping couple at very high frequencies Author(s) Půst, Ladislav (UT-L) RID
Pešek, Luděk (UT-L) RID
Košina, Jan (UT-L) RID
Radolfová, Alena (UT-L) RIDSource Title Colloquim Dynamics of Machines 2014. - Praha : Ústav termomechaniky AV ČR, v. v. i., 2014 / Pešek L. - ISBN 978-80-87012-50-5 Pages s. 133-141 Number of pages 9 s. Publication form Print - P Action Colloquium Dynamics of Machines 2014 Event date 04.02.2014-05.02.2014 VEvent location Praha Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords dry friction ; damping ; high frequencies Subject RIV BI - Acoustics R&D Projects GA101/09/1166 GA ČR - Czech Science Foundation (CSF) Institutional support UT-L - RVO:61388998 Annotation 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. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2015
Number of the records: 1