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Proceedings Paper

Control modeling of LIPCA using miniaturized piezoelectric actuator driver
Author(s): Moojun Song; Taesam Kang; Inpil Kang; Kwangjoon Yoon; Sang Yoon Lee
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Paper 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.

Paper Details

Date Published: 18 April 2007
PDF: 10 pages
Proc. SPIE 6523, Modeling, Signal Processing, and Control for Smart Structures 2007, 65230D (18 April 2007); doi: 10.1117/12.715518
Show Author Affiliations
Moojun Song, Konkuk Univ. (South Korea)
Taesam Kang, Konkuk Univ. (South Korea)
Inpil Kang, Pukyung National Univ. (South Korea)
Kwangjoon Yoon, Konkuk Univ. (South Korea)
Sang Yoon Lee, Konkuk Univ. (South Korea)

Published in SPIE Proceedings Vol. 6523:
Modeling, Signal Processing, and Control for Smart Structures 2007
Douglas K. Lindner, Editor(s)

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