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Quenching friction‐induced oscillations in multibody‐systems by the use of high‐frequency excitation
Author(s) -
Keller Simon,
Seemann Wolfgang
Publication year - 2021
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.202000185
Subject(s) - superposition principle , vibration , work (physics) , dry friction , excitation , quenching (fluorescence) , mechanics , mechanism (biology) , oscillation (cell signaling) , control theory (sociology) , classical mechanics , physics , materials science , acoustics , computer science , thermodynamics , chemistry , optics , quantum mechanics , biochemistry , control (management) , artificial intelligence , composite material , fluorescence
Abstract Dry friction can be a cause of undesired self‐excited oscillations. One way to suppress this underlying mechanism is the superposition of high‐frequency vibrations whereby the effective friction characteristics is changed and a quasi‐equilibrium can be stabilized. This damping effect is analyzed in detail for single‐degree‐of‐freedom systems [1] and experiments and simulations show a good accordance [2]. In this work, the analytical approach from [1] is used to analyze the stabilizing effect of superposed oscillations for a two‐degree‐of‐freedom system subject to friction.