NDLI: Implementation of adaptive structures with enhanced self-sensing piezoelectric actuators

Content Provider	IEEE Xplore Digital Library
Author	Liao, W.H. Law, W.W. Chan, K.W.
Copyright Year	2002
Description	Author affiliation: Dept. of Autom. & Comput.-Aided Eng., Chinese Univ. of Hong Kong, Shatin, China (Liao, W.H.; Law, W.W.; Chan, K.W.)
Abstract	In this paper, an enhanced self-sensing active constrained layer damping treatment incorporating adaptive mechanisms is developed. With two stiff edge elements onto the boundaries of the piezoelectric cover sheet, the actuating authority and sensing capability can be increased due to the enhancement of the direct and converse transmissibilities between the piezoelectric element and the host structure. This two-way bypass effect via the edge elements can significantly improve the piezoelectric sensing/actuating abilities, and the overall performance. Moreover, in a piezo-based self-sensing actuation (SSA) configuration, the control signal is usually mixed with the signal due to mechanical response. A self-tuning adaptive compensation is used to combine with the SSA technique to develop a controller that is capable of extracting the true sensing signal due to structural deformation. Concurrently, a control input is generated based on the compensated sensing voltage to actively suppress structural vibration. A beam structure bonded with an enhanced self-sensing piezoelectric actuator is implemented to demonstrate the effectiveness of this adaptive structure for the purpose of vibration control.
Sponsorship	IEEE Ind. Electron. Soc. Thai Robotics Soc
Starting Page	955
Ending Page	960
File Size	384522
Page Count	6
File Format	PDF
ISBN	0780376579
DOI	10.1109/ICIT.2002.1189298
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-12-11
Publisher Place	Thailand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Piezoelectric actuators Adaptive control Vibration control Programmable control Damping Viscosity Elasticity Piezoelectric materials Capacitance Signal generators
Content Type	Text
Resource Type	Article

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