Original title: Accuracy and numerical efficiency of approximate method for complex eigensolution of structure with specialized damping device
Authors: Hračov, Stanislav
Document type: Papers
Conference/Event: Engineering mechanics 2018 /24./, Svratka (CZ), 20180514
Year: 2018
Language: eng
Abstract: The paper provides a detailed parametric analysis of the recently proposed approximate method for complex eigensolution of non-classically damped structures. This method is based on a combination of perturbation and incremental approaches and is applicable to the classically damped structures equipped with a specialized passive damping device. The numerical efficiency in terms of the required calculation times and the accuracy is demonstrated on a model of an existing structure for various combination of computational parameters. Wide numerical simulations revealed the selection of real eigenmodes of undamped system used in the approximate eigensolution as the most important parameter affecting the final accuracy.
Keywords: complex eigensolution; non-classical damping; passive damper; perturbation method
Project no.: GC17-26353J (CEP)
Funding provider: GA ČR
Host item entry: Engineering mechanics 2018. Book of full texts, ISBN 978-80-86246-88-8, ISSN 1805-8248

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://www.engmech.cz/improc/2018/313.pdf
Original record: http://hdl.handle.net/11104/0283991

Permalink: http://www.nusl.cz/ntk/nusl-375251


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
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