Robust vibration control of the metal-core-assisted piezoelectric fiber embedded in CFRP composite

Kiyoshi Takagi; Hiroshi Sato; Muneharu Saigo

doi:10.1117/12.539686

26 July 2004 Robust vibration control of the metal-core-assisted piezoelectric fiber embedded in CFRP composite

Kiyoshi Takagi, Hiroshi Sato, Muneharu Saigo

Proceedings Volume 5383, Smart Structures and Materials 2004: Modeling, Signal Processing, and Control; (2004) https://doi.org/10.1117/12.539686
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

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.

Citation Download Citation

Kiyoshi Takagi, Hiroshi Sato, and 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); https://doi.org/10.1117/12.539686

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