Original title: Records-distortion at discontinuous forces measurements
Authors: Půst, Ladislav ; Pešek, Luděk ; Radolfová, Alena
Document type: Papers
Conference/Event: Interaction and Feedbacks 2013 /20./, Prague (CZ), 2013-11-26 / 2013-11-27
Year: 2013
Language: eng
Abstract: Our paper in the last “Interaction and feedback 2012” conference has been oriented on the influence of force transducer’s mounting on its signal. The presented paper links on the previous contribution and concentrates on the problem of recording time histories of discontinuous periodic forces. The frequency spectrum of sudden jumps in force courses contain many high components, some of them can be laying near to some of the system’s eigenfrequencies. The excitation of these higher oscillations can essentially distort records of force jumps. Unfortunately, the application of low pas filter cannot be used, as it deletes both distorted frequencies as well as these same frequencies in the jumps signal and distorted it again. One of the possibilities how to solve this problem is using special evaluation procedure that enables to estimate (at least approximately) the real measured force. This evaluation method can be used successfully at measurement of dry friction forces arising during vibration’s tangential contact.
Keywords: modified Coulomb dry friction model; sudden jumps in force; tribology apparatus
Project no.: GA101/09/1166 (CEP)
Funding provider: GA ČR
Host item entry: Interaction and Feedbacks 2013, ISBN 978-80-87012-49-9

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/11104/0228683

Permalink: http://www.nusl.cz/ntk/nusl-170048


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