Simulation and Experiment of a Rotor with Unilateral Contacts and Active Elements

  • Lucas Ginzinger
  • Heinz UlbrichEmail author
Conference paper
Part of the IUTAM Bookseries book series (IUTAMBOOK, volume 1011)


A simulation environment for rotordynamical problems has been developed at our institute. The environment is based on a framework for the efficient simulation of multibody systems with unilateral contacts and elastic elements. The simulation comprises the modelling of a 3D flexible rotor, unilateral contacts with and without friction between the rotor and stationary parts and an interface to Matlab/Simulink to co-simulate the feedback control of active elements. The fundamentals of unilateral constraints allow a detailed simulation of processes like contact /detachment, stick/slip or impacts with and without friction. The simulation environment has been tested and verified using experimental results from a rotor test rig with an active auxiliary bearing. In this project the possibilities of controlling a rubbing rotor with an active auxiliary bearing have been investigated in experiments and theory.


Simulation environment Unilateral contacts Active elements Rotor rubbing Active auxiliary bearing 


  1. 1.
    Brogliato, B., Ten Dam, A.A., Paoli, L., Gnot, F., Abadie, M.: Numerical simulation of finite dimensional multibody nonsmooth mechanical systems. ASME Appl. Mech. Rev. 55, 107 (2002)CrossRefGoogle Scholar
  2. 2.
    Ehehalt, U.: Bewegungsformen elastischer rotoren bei statorkontakt. Dissertation, Technische Universitt Darmstadt (2007). Fortschr.-Ber. VDI Reihe 11 Nr. 335. Dsseldorf: VDI Verlag 2008Google Scholar
  3. 3.
    Förg, M., Zander, R., Ulbrich, H.: A framework for the efficient simulation of spatial contact problems. In: Proceedings of the ECCOMAS Conference on Multi-Body Systems. Milano, Milano(2007)Google Scholar
  4. 4.
    Ginzinger, L., Ulbrich, H.: Parameter study of rotor rubbing control with an active auxiliary bearing. In: The 12th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, February 17–22. Honolulu HI, USA (2008)Google Scholar
  5. 5.
    Studer, C.: Augmented time-stepping integration of non-smooth dynamical systems. In: ETH E-Collection (2008)Google Scholar
  6. 6.
    Zander, R., Schindler, T., Friedrich, M., Huber, R., Förg, M., Ulbrich, H.: Non-smooth dynamics in academia and industry: recent work at tu münchen. Acta Mech 195(1–4), 167–183 (2008)CrossRefzbMATHGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Institute of Applied MechanicsTechnische Universitaet MuenchenGarchingGermany

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