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.
- Design Engineering Division and Computers and Information in Engineering Division
On the Coupling Between Torsional and Lateral Vibrations in a Rotor Dynamic System With Set-Valued Friction
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van de Wouw, N, Nijmeijer, H, & Mihajlovic´, N. "On the Coupling Between Torsional and Lateral Vibrations in a Rotor Dynamic System With Set-Valued Friction." Proceedings of the 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. pp. 213-222. ASME. https://doi.org/10.1115/DETC2007-34921
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