Vibration-isolation characteristics of an active vibration control system incorporating an electromagnetic force generator (actuator) are investigated. The electromagnetic force generator is modeled as a first-order dynamical system and the influence of dynamics of the force generator on the vibration-isolation performance of the active isolator is investigated via computer simulation. It is concluded that the dynamics of the force generator affect the vibration-isolation performance significantly. An active control scheme, based upon absolute position, velocity, and relative position response variables, is proposed and investigated. In view of the adverse effects of generator dynamics, the proposed control scheme yields superior vibration isolation performance. Stability analysis of the active vibration control system is carried out to determine the limiting values of various feedback control gains.
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January 1990
Research Papers
Vibration-Isolation Characteristics of an Active Electromagnetic Force Generator and the Influence of Generator Dynamics
Hong Su,
Hong Su
Department of Mechanical Engineering, Concordia University, Montreal, Canada
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S. Rakheja,
S. Rakheja
Department of Mechanical Engineering, Concordia University, Montreal, Canada
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T. S. Sankar
T. S. Sankar
Department of Mechanical Engineering, Concordia University, Montreal, Canada
Search for other works by this author on:
Hong Su
Department of Mechanical Engineering, Concordia University, Montreal, Canada
S. Rakheja
Department of Mechanical Engineering, Concordia University, Montreal, Canada
T. S. Sankar
Department of Mechanical Engineering, Concordia University, Montreal, Canada
J. Vib. Acoust. Jan 1990, 112(1): 8-15 (8 pages)
Published Online: January 1, 1990
Article history
Received:
August 30, 1988
Online:
June 17, 2008
Citation
Su, H., Rakheja, S., and Sankar, T. S. (January 1, 1990). "Vibration-Isolation Characteristics of an Active Electromagnetic Force Generator and the Influence of Generator Dynamics." ASME. J. Vib. Acoust. January 1990; 112(1): 8–15. https://doi.org/10.1115/1.2930104
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