Simple model for a magnetic bearing system operating on the auxiliary bearing

被引：0
作者：
Cuesta, E. N. [1 ]
Montbrun, N. I. [1 ]
Rastelli, V. [1 ]
Diaz, S. E. [1 ]
机构：
[1] Univ Simon Bolivar, Lab Dinam Maquinas, Caracas 1080A, Venezuela
来源：
Proceedings of the ASME Turbo Expo 2005, Vol 4 | 2005年
关键词：
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The present work studies the behavior of a magnetic bearing supported rotor when the flow of electric current to the magnetic actuator is suppressed In this condition the rotor is supported by the auxiliary bearing, which has looseness with the rotor, generating a series of impacts between these components. For the study of this state, a model of a flexible rotor is proposed, and the impacts are simulated using kinematical restitution coefficient theory. The results obtained from the theoretical model are compared with experimental data taken on a test rig using tools for non linear systems analysis such bifurcation diagrams. The comparison shows that, besides the simplification of the contact, the model predicts ranges chaotic, quasi-periodic, and periodic motions in the test rig.
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页码：891 / 898
页数：8
相关论文
共 14 条
  • [1] The dynamic behavior of a rolling element auxiliary bearing following rotor impact
    Cole, MOT
    Keogh, PS
    Burrows, CR
    [J]. JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, 2002, 124 (02): : 406 - 413
  • [2] CUESTA EN, 2002, ASME TURBO EXPO 2002
  • [3] CUESTA EN, 2004, DINAMICA ROTOR SOPOR
  • [4] ECKER H, 1997, INT S MAGN BEAR AL V
  • [5] FOILES WC, 1997, 5 INT S MAGN BEAR AL
  • [6] FUMAGALLI M, 1992, P 3 INT S MAGN BEAR, P145
  • [7] HASSENPFLUG HL, 1988, UVA643092MAE88378 U
  • [8] KEOGH PS, 2003, P INSTN MECH ENG C, V217
  • [9] KIRK RG, 1997, P MAG 97 AL US, P139
  • [10] Schmied J., 1992, 3 INT S MAGNETIC BEA, P145
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