Original title: Applicability of existing indexes of non-proportionality of damping in case of theoretical model of slender structure with installed TMD
Authors: Hračov, Stanislav ; Pospíšil, Stanislav ; Náprstek, Jiří
Document type: Papers
Conference/Event: Engineering mechanics 2012 - International conference /18./, Svratka (CZ), 2012-05-14 / 2012-05-17
Year: 2012
Language: eng
Abstract: The paper analyzes an applicability of to date published indexes of non-proportionality in the case of a linear viscously damped numerical model of slender structure equipped with tuned mass damper (TMD). The installation of TMD into the structure not only reduces the level of undesired vibration, but it can also cause due to damping element of TMD a significant increase of damping nonproportionality. The paper recommends the most suitable indexes for such a type of structure and points out to impropriety of the others. The point of view of is also focus on the validity of the existing criterions for neglecting of non-diagonal terms of a modal damping matrix. Only indexes and criterions based on the properties of the modal damping matrix were taking into account.
Keywords: indexes of non-proportionality of damping; slender structure; tuned mass damper
Project no.: GA103/09/0094 (CEP), IAA200710902 (CEP), FR-TI3/654 (CEP)
Funding provider: GA ČR, GA AV ČR, GA MPO
Host item entry: Engineering Mechanics 2012, ISBN 978-80-86246-39-0

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/11104/0213186

Permalink: http://www.nusl.cz/ntk/nusl-134957


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
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