Engineering Mechanics

International Conference

Proceedings Vol. 11 (2005)


ENGINEERING MECHANICS 2005

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 9 – 12, 2005, Svratka, Czech Republic
;
Editors: Vladimír Fuis, Petr Krejčí and Tomáš Návrat

Copyright © 2005 Institute of Mechanics of Solids, Faculty of Mechanical Engineering, Bruno University of Technology, Brno

ISBN 80-85918-93-5 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

The analysis of dynamical systems for simulation of relaxation oscillation
Pejchal P., Janíček P., Petruška J., Procházka F.
pages 249 - +7p., full text

The hypothesis was stated, that the relaxation oscillation emerge in the surface layers of wheel and rail, by the accelerating and braking period of the rail vehicles. The issue is to analyze the nonlinear dynamic systems, which are used to simulate these systems. This study focuses on the periodic and chaotic behaviour of the unforced and forced Van der Pol oscilator. The variation of control parametr is also considered. Moreover the behaviour of the same real system with Rayleigh, exponencial and constant with adhesion contact friction model is studied. This is preparatory study for potencial experimental validation of the occurence of relaxation oscilation.


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