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Analytical Modeling of Twist Actuators for Pretwisted Anisotropic Strips

Sitikantha, Roy and Harursampath, Dineshkumar (2004) Analytical Modeling of Twist Actuators for Pretwisted Anisotropic Strips. In: 45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference, 19 - 22 April 2004, Palm Springs, California, pp. 223-228.

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In this paper, a twist actuator model for a strip-like open section is developed by application of variational asymptotic method. Piezoelectric Fiber Composite (PFC) with InterDigitated Electrode (IDE) has been used as the actuating material. The actuation effect in the presence of non-linear extension-twist coupling has been studied. For an open type of section, direct twist actuation stems mainly through structural anisotropy (structural coupling) because inplane shear actuation does not affect the induced twist much. Analytical derivation is done for a simple example and the effects of non-linear coupling discussed.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to the American Institute of Aeronautics and Astronautics
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Depositing User: Obaiah B
Date Deposited: 12 Feb 2008
Last Modified: 19 Sep 2010 04:42
URI: http://eprints.iisc.ac.in/id/eprint/12994

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