Engineering Mechanics

International Conference

Proceedings Vol. 24 (2018)


ENGINEERING MECHANICS 2018

24th INTERNATIONAL CONFERENCE
May 14 – 17, 2018, Svratka, Czech Republic
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Editors: Cyril Fischer and Jiří Náprstek

Copyright © 2018 Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences, Prague

ISBN 978-80-86246-88-8 (printed)
ISBN 978-80-86246-91-8 (electronic)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Accuracy and numerical efficiency of approximate method for complex eigensolution of structure with specialized damping device
Hračov S.
pages 313 - 316, full text

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.


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