Original title: Analysis of van der Pol equation on slow time scale for combined random and harmonic excitation
Authors: Náprstek, Jiří ; Fischer, Cyril
Document type: Papers
Conference/Event: Computational mechanics 2022. Conference with international participation /37./, Srní (CZ), 20221107
Year: 2022
Language: eng
Abstract: Vortex shedding represents one of the most important processes that constantly attract the attention of experimental and theoretical research. A number of non-linear effects arise from the fluid-structure interaction. The non-stationary response in the vicinity of the lock-in region has a quasi-periodic character, beating frequency of which varies considerably with the distance from the lock-in frequency. This property is significantly affected by the assumption of combined random and harmonic excitation. This paper describes several details that contribute to the probabilistic characteristics of the system on a time-slow scale using partial response amplitudes.
Keywords: Fokker-Planck equation; SDOF oscillator; slow-time system
Project no.: GC21-32122J (CEP)
Funding provider: GA ČR
Host item entry: Proceedings of Computational mechanics 2022, ISBN 978-80-261-1116-0

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: https://hdl.handle.net/11104/0335765

Permalink: http://www.nusl.cz/ntk/nusl-511552


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
Conference materials > Papers
 Record created 2022-11-20, last modified 2023-03-28


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