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Bifurcation and Nonlinear Dynamic Analysis of Externally Pressurized Double Air Films Bearing System

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  • Cheng-Chi Wang
  • Chin-Chia Liu
  • Chi-Chang Wang

Abstract

This paper studies the chaotic and nonlinear dynamic behaviors of a rigid rotor supported by externally pressurized double air films (EPDAF) bearing system. A hybrid numerical method combining the differential transformation method and the finite difference method is used to calculate pressure distribution of EPDAF bearing system and bifurcation phenomenon of rotor center orbits. The results obtained for the orbits of the rotor center are in good agreement with those obtained using the traditional finite difference approach. The results presented summarize the changes which take place in the dynamic behavior of the EPDAF bearing system as the rotor mass and bearing number are increased and therefore provide a useful guideline for the bearing system.

Suggested Citation

  • Cheng-Chi Wang & Chin-Chia Liu & Chi-Chang Wang, 2014. "Bifurcation and Nonlinear Dynamic Analysis of Externally Pressurized Double Air Films Bearing System," Mathematical Problems in Engineering, Hindawi, vol. 2014, pages 1-12, April.
    • Handle: RePEc:hin:jnlmpe:798374
    DOI: 10.1155/2014/798374
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