26 July 2004 Robust vibration control of the metal-core-assisted piezoelectric fiber embedded in CFRP composite
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Abstract
This paper addresses the active vibration control of a new smart board designed by mounting piezoelectric fibers with a metal core on the surface of the CFRP composite. These complex fibers function as sensors and actuators in the CFRP board. A finite element model of a cantilever and a reduced order model for controller design were established. The piezoelectric fibers are uneven in the actuator outputs.Therefore, the linear fractional transformation (LFT) is formulated considering the unevenness of the actuator outputs as the perturbation. Next, the controller is designed by using mu synthesis, considering the perturbation and robust stability. The control performance of the proposed method is verified by experiment and demonstrates that piezoelectric fibers can be effectively used in vibration control.
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Kiyoshi Takagi, Hiroshi Sato, Muneharu Saigo, "Robust vibration control of the metal-core-assisted piezoelectric fiber embedded in CFRP composite", Proc. SPIE 5383, Smart Structures and Materials 2004: Modeling, Signal Processing, and Control, (26 July 2004); doi: 10.1117/12.539686; https://doi.org/10.1117/12.539686
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KEYWORDS
Actuators

Sensors

Metals

Composites

Vibration control

Active vibration control

Finite element methods

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