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Dry friction damping couple at high frequencies
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SYSNO ASEP 0436953 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Dry friction damping couple at 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 Applied and Computational Mechanics - ISSN 1802-680X
Roč. 8, č. 1 (2014), s. 91-100Number of pages 10 s. Publication form Print - P Language eng - English Country CZ - Czech Republic Keywords dry friction ; damping ; high frequencies Subject RIV BI - Acoustics 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 Electronic address http://www.kme.zcu.cz/acm/acm/article/view/239/265
Number of the records: 1