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On the Coupling Between Torsional and Lateral Vibrations in a Rotor Dynamic System With Set-Valued Friction

[+] Author Affiliations
N. van de Wouw, H. Nijmeijer

Eindhoven University of Technology, Eindhoven, The Netherlands

N. Mihajlović

Philips Research Laboratories, Eindhoven, The Netherlands

Paper No. DETC2007-34921, pp. 213-222; 10 pages
  • ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5: 6th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B, and C
  • Las Vegas, Nevada, USA, September 4–7, 2007
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 0-7918-4806-X | eISBN: 0-7918-3806-4
  • Copyright © 2007 by ASME


In this paper, we analyze the interaction between friction-induced vibrations and self-sustained lateral vibrations caused by mass-unbalance in an experimental rotor dynamic set-up. This study is performed on the level of both numerical and experimental bifurcation analyses. The results show that a higher level of mass-unbalance, which generally increases the lateral vibrations, can have a stabilizing effect on the torsional dynamics, i.e. friction-induced limit cycling can disappear. Moreover, the analyses provide insight in the fundamental mechanisms causing self-sustained oscillations in rotor systems with flexibility, mass-unbalance and discontinuous friction which supports the design of such flexible rotor systems.

Copyright © 2007 by ASME



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