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Proceedings Paper

Hybrid composite materials using shape memory alloy actuators to provide vibration and acoustic control
Author(s): Lawrence McDonald Schetky; Chen Liang; Craig A. Rogers
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Paper Abstract

Shape memory alloys exhibit several characteristics which make these materials particularly attractive for modal modification of structures: a large change in modulus upon heating through the phase transformation temperature, an exceptionally high specific damping capacity, and an ability to generate large forces through the shape recovery mechanism. Used as either embedded members in a composite structure, or as an external actuator when caused to undergo the shape transformation by heating, these actuators can provide a significant change in acoustic response of the structure. The paper describes shape memory alloy characterization and the design of an actuator system for modifying the acoustic response of a clamped plate.

Paper Details

Date Published: 6 May 1994
PDF: 12 pages
Proc. SPIE 2190, Smart Structures and Materials 1994: Smart Structures and Intelligent Systems, (6 May 1994); doi: 10.1117/12.175203
Show Author Affiliations
Lawrence McDonald Schetky, Memry Corp. (United States)
Chen Liang, Paradigm, Inc. (United States)
Craig A. Rogers, Paradigm, Inc. (United States)

Published in SPIE Proceedings Vol. 2190:
Smart Structures and Materials 1994: Smart Structures and Intelligent Systems
Nesbitt W. Hagood, Editor(s)

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