Proceedings Vol. 14 (2008)
ENGINEERING MECHANICS 2008
May 12 – 15, 2008, Svratka, Czech Republic
Copyright © 2008 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
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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