Original title: Experimental and theoretical stability analysis of damped auto-parametric pendulum
Authors: Pospíšil, Stanislav ; Fischer, Cyril ; Náprstek, Jiří
Document type: Papers
Conference/Event: Engineering Mechanics 2010, Svratka (CZ), 2010-05-10 / 2010-05-13
Year: 2010
Language: eng
Abstract: The article describes an experimental and theoretical treatment of the auto-parametric pendulum damper modelled as a double-degree-of-freedom (DDOF) system. It is strongly non-linear, with the harmonic excitation being applied in the suspension point and interpreted for instance as an excitation by wind. The stability of the motion in a vertical plane is analysed in the meaning of semi-trivial vibration. This effect of stability loss and possible stability regain is very important from practical point of view, because the motion of an damper beyond the stability limits may act negatively and thus endanger the structure itself. Special experimental frame was developed.The stability of the system is analysed experimentally and compared with theoretical results.
Keywords: autoparametric system; damped pendulum; experimental device
Project no.: CEZ:AV0Z20710524 (CEP), GA103/09/0094 (CEP), GC103/07/J060 (CEP), IAA200710805 (CEP), IAA2071401 (CEP)
Funding provider: GA ČR, GA ČR, GA AV ČR, GA AV ČR
Host item entry: Engineering Mechanics 2010, ISBN 978-80-87012-26-0

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: http://hdl.handle.net/11104/0188725

Permalink: http://www.nusl.cz/ntk/nusl-41743


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
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