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Proceedings Paper

Experimental and analytical study of adaptive structures using Eigenstrain techniques
Author(s): Abdulmalik A. Alghamdi; Abhijit Dasgupta
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Paper Abstract

The dynamic response of an adaptive beam containing embedded mini-devices (sensors and actuators) is investigated analytically and experimentally in this paper. The dynamic model is based on Hamilton's variational principle and the mechanical interactions between the beam and the devices are modeled using Eshelby's equivalent-inclusion method. The dynamic model is verified experimentally, using a cantilever beam made of ALPLEX plastic as host material and piezoelectric devices (PZT-5H) as active mini-devices for sensing and actuation. The experimental setup is outlined and the analytical results are compared with the experimental ones. The capability of mini-actuators to change the dynamic behavior of the adaptive beam is explored for the adaptive stiffening case.

Paper Details

Date Published: 5 May 1995
PDF: 11 pages
Proc. SPIE 2442, Smart Structures and Materials 1995: Mathematics and Control in Smart Structures, (5 May 1995); doi: 10.1117/12.208832
Show Author Affiliations
Abdulmalik A. Alghamdi, Univ. of Maryland/College Park (United States)
Abhijit Dasgupta, Univ. of Maryland/College Park (United States)

Published in SPIE Proceedings Vol. 2442:
Smart Structures and Materials 1995: Mathematics and Control in Smart Structures
Vasundara V. Varadan, Editor(s)

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