Engineering Mechanics

International Conference

Proceedings Vol. 14 (2008)


ENGINEERING MECHANICS 2008

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 12 – 15, 2008, Svratka, Czech Republic
;
Editors: Vladimír Fuis and Michal Pásek

Copyright © 2008 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 978-80-87012-11-6 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

STUDY OF DAMPING ELEMENT SHAPE INFLUENCE ON NATURAL FREQUENCY
Lošák P., Malenovský E.
pages 144 - +11p., full text

his paper deals with numerical simulations of non-linear structure vibrating. It was created a simple model of one-side fixed beam with the dovetail groove and the damping strap in it. There was contact included between sidewalls of the strap and the groove. Main aim was to determine how the strap s hape influencing the natural frequency and the damping coefficient. It was observed a time-dependency of the displacement. This signal was converted to the frequencydomain by FFT algorithm. In this Fourier’s spectrum was easy to determin e the response frequencies. The damping coefficient was determined pursuant to the resonance curve bandwidth in certain distance. It was performed several simulations with various parameters, and results were plotted to graphs.


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Text and facts may be copied and used freely, but credit should be given to these Proceedings.

All papers were reviewed by members of the scientific committee.


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