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Article

Discrete Sliding-Mode Tracking Control of High-Displacement Piezoelectric Actuator Systems

[+] Author and Article Information
Chih-Lyang Hwang

Dept. of Mechanical Engineering, Tatung University, 40 Chungshan North Road, Section 3, Taipei, 10451 Taiwan, R.O.C.

Yung-Ming Chen

J. Dyn. Sys., Meas., Control 126(4), 721-731 (Mar 11, 2005) (11 pages) doi:10.1115/1.1849244 History: Revised January 06, 2004; Online March 11, 2005
Copyright © 2004 by ASME
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Figures

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The experimental setup (a) Photography (b) Block diagram
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A typical output response of the MLBA using a proportional control
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The output responses of the HDPAS (-) for various inputs um sin(2πft) μm (⋯)  
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Hysteretic characteristic
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The output response of HDPAS by the PID control (–) for the reference input 80 sin(40πt) μm (⋯): (a) Ki=10,Kd=0.00008,Kp=1.0 (---), Kp=3.4 (−); (b) Ki=10,Kd=0.00008,Kp=3.5 (−)
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Equivalent control block diagram of Fig. 6
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The filtered output responses of the mathematical model (-) and the HDPAS (⋯) for the inputs u(t)=um sin(2πft) μm
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The (filtered) output response of HDPAS by only the equivalent control for the reference input r(t)=80 sin(40πt) μm
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The response of HDPAS by the proposed control for the reference input r(t)=80 sin(40πt) μm (⋯)
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The output responses of HDPAS by the proposed control (-) for different reference inputs r(t)=rm sin(2πft) μm (⋯)
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The output responses of HDPAS by the proposed control for the reference input r(t)=60 sin(30πt)+40 sin(40πt) μm

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