In rotating machinery, rotor unbalance causes many resonances at critical speeds corresponding to different modes. In this paper, a vibration control method for rotor systems utilizing disturbance observer is proposed. The nonlinear terms, unbalance, parameter variations, and uncertain terms of a rotor system are lumped into a disturbance term, and this term is canceled by using disturbance observer. As a result, the vibrations are suppressed to small amplitudes all over the rotational speed range. Simultaneously, unbalance of the first mode is estimated from the information of control force of disturbance observer. Moreover, the effects of parameter errors of the control system are also investigated. The validity of the proposed method is verified through numerical simulations and experiments.
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e-mail: inoue@nuem.nagoya-u.ac.jp
e-mail: liu@nuem.nagoya-u.ac.jp
e-mail: ishida@nuem.nagoya-u.ac.jp
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June 2009
Research Papers
Vibration Control and Unbalance Estimation of a Nonlinear Rotor System Using Disturbance Observer
Tsuyoshi Inoue,
Tsuyoshi Inoue
Department of Mechanical Science and Engineering, School of Engineering,
e-mail: inoue@nuem.nagoya-u.ac.jp
Nagoya University
, Nagoya, Aichi 464-8603, Japan
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Jun Liu,
Jun Liu
Department of Mechanical Science and Engineering, School of Engineering,
e-mail: liu@nuem.nagoya-u.ac.jp
Nagoya University
, Nagoya, Aichi 464-8603, Japan
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Yukio Ishida,
Yukio Ishida
Department of Mechanical Science and Engineering, School of Engineering,
e-mail: ishida@nuem.nagoya-u.ac.jp
Nagoya University
, Nagoya, Aichi 464-8603, Japan
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Yusuke Yoshimura
Yusuke Yoshimura
Honda Motor Co., Ltd.
, 2-1-1, Minami Aoyama, Minato-ku, Tokyo 107-8556, Japan
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Tsuyoshi Inoue
Department of Mechanical Science and Engineering, School of Engineering,
Nagoya University
, Nagoya, Aichi 464-8603, Japane-mail: inoue@nuem.nagoya-u.ac.jp
Jun Liu
Department of Mechanical Science and Engineering, School of Engineering,
Nagoya University
, Nagoya, Aichi 464-8603, Japane-mail: liu@nuem.nagoya-u.ac.jp
Yukio Ishida
Department of Mechanical Science and Engineering, School of Engineering,
Nagoya University
, Nagoya, Aichi 464-8603, Japane-mail: ishida@nuem.nagoya-u.ac.jp
Yusuke Yoshimura
Honda Motor Co., Ltd.
, 2-1-1, Minami Aoyama, Minato-ku, Tokyo 107-8556, JapanJ. Vib. Acoust. Jun 2009, 131(3): 031010 (8 pages)
Published Online: April 23, 2009
Article history
Received:
October 19, 2005
Revised:
May 29, 2007
Published:
April 23, 2009
Citation
Inoue, T., Liu, J., Ishida, Y., and Yoshimura, Y. (April 23, 2009). "Vibration Control and Unbalance Estimation of a Nonlinear Rotor System Using Disturbance Observer." ASME. J. Vib. Acoust. June 2009; 131(3): 031010. https://doi.org/10.1115/1.3085886
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