Control modeling of LIPCA using miniaturized piezoelectric actuator driver

Moojun Song; Taesam Kang; Inpil Kang; Kwangjoon Yoon; Sang Yoon Lee

doi:10.1117/12.715518

18 April 2007 Control modeling of LIPCA using miniaturized piezoelectric actuator driver

Moojun Song, Taesam Kang, Inpil Kang, Kwangjoon Yoon, Sang Yoon Lee

Proceedings Volume 6523, Modeling, Signal Processing, and Control for Smart Structures 2007; 65230D (2007) https://doi.org/10.1117/12.715518
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

A smart material is known to be able to generate large force in broad bandwidth in a compact size. However it needs relatively large voltage to drive it and this makes the system bulky. In this paper, first, we introduce an improved version of miniaturized piezo actuator driver and modeling of the dynamics of the piezo actuator, LIPCA. ARX model was used to model the dynamics of the LIPCA. We applied rectangular waves to the LIPCA and measured its responses with a strain gauge and a signal processing circuit. A 5th order model was obtained from the input/output data and applying identification algorithm. Secondly, we designed a simple PID controller based on the obtained model to improve the characteristics of the LIPCA actuator.

Citation Download Citation

Moojun Song, Taesam Kang, Inpil Kang, Kwangjoon Yoon, and Sang Yoon Lee "Control modeling of LIPCA using miniaturized piezoelectric actuator driver", Proc. SPIE 6523, Modeling, Signal Processing, and Control for Smart Structures 2007, 65230D (18 April 2007); https://doi.org/10.1117/12.715518

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