Characterization of piezoelectric stack actuators for structural control applications

Janardhanam, S and Dutta, Soma and Rajappa, Shashikala and Sundararajan, D and Raja, S (2004) Characterization of piezoelectric stack actuators for structural control applications. In: 3rd International Conference on Theoretical, Applied, Computational and Experimental Mechanics – ICTACEM 2004 , December 2004, IIT, Kharagpur, India.

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In this paper we experimentally evaluate the response of several piezoelectric stack actuators under different loading conditions (mechanical, electrical and electromechanical). An improved smart material actuators measurement method suited for static and dynamic actuation is devised (Fig. 1). The output displacement of the active material is recorded under various prestress level and voltage values. The measurements indicate a strong dependence of piezoelectric properties under electromechanical loading conditions for the actuators. Results indicate that certain operating conditions (i.e., mechanical prestress) can improve actuation capabilities.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Mechanical prestress;Electromechanical loading;Piezoelectric properties
Subjects: ENGINEERING > Electronics and Electrical Engineering
ENGINEERING > Structural Mechanics
Depositing User: Ms. Alphones Mary
Date Deposited: 01 Aug 2011 10:38
Last Modified: 01 Sep 2015 08:21

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