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Stability analysis of rotor-bearing systems via Routh-Hurwitz criterion

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  • El-Marhomy, Abd Alla
  • Abdel-Sattar, Nasar Eldin

Abstract

A method of analysis is developed for studying the whirl stability of rotor-bearing systems without the need to solve the governing differential-equations of motion of such systems. A mathematical model, comprised of an axially-symmetric appendage at the mid-span of a spinning shaft mounted on two dissimilar eight-coefficient bearings, is used to illustrate the method. Sufficient conditions for asymptotic stability of both the translational and rotational modes of motion of the system have been derived. The system's stability boundaries, presented graphically in terms of the various system non-dimensionalized parameters, afford a comprehensive demonstration of the effects of such parameters on the system's stability of motion.

Suggested Citation

  • El-Marhomy, Abd Alla & Abdel-Sattar, Nasar Eldin, 2004. "Stability analysis of rotor-bearing systems via Routh-Hurwitz criterion," Applied Energy, Elsevier, vol. 77(3), pages 287-308, March.
    • Handle: RePEc:eee:appene:v:77:y:2004:i:3:p:287-308
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    Cited by:

    1. Radoslaw Stanislawski & Jules-Raymond Tapamo & Marcin Kaminski, 2022. "A Hybrid Adaptive Controller Applied for Oscillating System," Energies, MDPI, vol. 15(17), pages 1-22, August.

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