Abstract
Some possible collocation strategies of sensor and actuator pairs for the application to active vibration control systems are analyzed, compared and discussed in this paper. This is becausea well-designed sensor — actuator collocation configuration can provide a simpler control algorithm with excellent performance and stability, especially when velocity feedback is adopted. As an ideal point collocation pair of a sensor and actuator shows high possibility in actual vibration control problems, the advantage of a collocated accelerometer — shaker pair is proven experimentally and discussed first. Then as a similar approach, a collocated piezosensor — piezoactuator pair is analyzed in depth with the in-plane motion coupling. Finally, two configurations of a practically collocated configuration with an accelerometer — piezoactuator pair and a non-overlapped collocated pair of a bimorph piezosensor — two bimorph piezoactuators are described in detail in terms of performance and stability with experimental results. Those two configurations are expected for the applications to more practical active control of vibration systems with the velocity feedback control scheme.
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This paper was recommended for publication in revised form by Associate Editor Dong Hwan Kim
Young-Sup Lee received his BS degree in Naval Architecture from Pusan National University, Korea, in 1987. He then received his MSc and PhD degrees from University of Southampton, United Kingdom, in 1997 and 2000, respectively. Dr. Lee is currently an associate professor at Department of Embedded Systems Engineering in University of Incheon, Korea. Dr. Lee’s research interests include active control of sound and vibration, signal processing, and smart sensors and actuators.
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Lee, YS. Comparison of collocation strategies of sensor and actuator for vibration control. J Mech Sci Technol 25, 61–68 (2011). https://doi.org/10.1007/s12206-010-1102-0
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DOI: https://doi.org/10.1007/s12206-010-1102-0