An experimental study for the active vibration control of structures subject to external excitations using piezoelectric sensors and actuators is presented. A simply supported plate and a curved panel are used as the controlled structures in two experiments, respectively. The Independent Modal Space Control (IMSC) approach is employed for the controller design. In order to increase the adaptability, the time-domain modal identification technique is incorporated into the controller to real-time update the system parameters. The adaptive effectiveness of the time-domain modal identification technique is tested by fixing an additional mass on the simply supported plate to change its structural properties. The vibration suppression performances of the controller are 5.7 dB and 10.8 dB for the simply-supported plate with/without the mass subject to a chirp sine excitation, respectively. For the experiment of the curved panel subject to a sinusoidal excitation, the vibration attenuation of the control scheme is 5.0 dB even the control circuit is subject to some noise generated by electrical and magnetic interferences.
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January 2003
Technical Papers
Structural Vibration Suppression Using the Piezoelectric Sensors and Actuators
Y. Y. Lee,
Y. Y. Lee
Department of Building and Construction, City University of Hong Kong, Kowloon Tong, Kowloon, Hong Kong
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J. Yao
J. Yao
The Solid Mechanics Research Center, Beijing University of Aeronautics and Astronautics, Beijing, China
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Y. Y. Lee
Department of Building and Construction, City University of Hong Kong, Kowloon Tong, Kowloon, Hong Kong
J. Yao
The Solid Mechanics Research Center, Beijing University of Aeronautics and Astronautics, Beijing, China
Contributed by the Technical Committee on Vibration and Sound for Publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received December 2001; Revised August 2002. Associate Editor: R. Ohayon.
J. Vib. Acoust. Jan 2003, 125(1): 109-113 (5 pages)
Published Online: January 6, 2003
Article history
Received:
December 1, 2001
Revised:
August 1, 2002
Online:
January 6, 2003
Citation
Lee, Y. Y., and Yao, J. (January 6, 2003). "Structural Vibration Suppression Using the Piezoelectric Sensors and Actuators ." ASME. J. Vib. Acoust. January 2003; 125(1): 109–113. https://doi.org/10.1115/1.1523891
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