Proceedings Vol. 10 (2004)
ENGINEERING MECHANICS 2004
May 10 – 13, 2004, Svratka, Czech Republic
Copyright © 2004 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Prague
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 119 - +10p., full text
This paper deals with the influence of the nonproportional damping on the free vibration of a slender structures. It is focused on the mutual comparison of proportionally and nonproportionally damped discrete models and their teoretical solution. It is shown, that the solution for nonproportional damping is characterized by the movement of the vibration nodes along the structure. It is caused by different phase between each component of displacement vector. This phenomenon is presented on the example of tall structure - TV tower. The installation of a vibration absorber decreases the negative wind effects and changes the whole structure into nonproportinally damped system with nonstationary location of the nodes.
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