Active vibration and structural acoustic control of shape memory alloy hybrid composites: Experimental results

TR Number

Date

1990-12-01

Journal Title

Journal ISSN

Volume Title

Publisher

Acoustical Society of America

Abstract

Shape memory alloy hybrid composites have been shown both by analytical simulations and experiments to be effective adaptive materials for active vibration and structural acoustics control [Rogers and Robertshaw, Engineering Science Preprints 25, ESP25.88027, Society of Engineering Sciences (1988) and ASME Paper 88-WA/DE-9 ( 1988); Rogers et al., in Proceedings of the 30th Structures, Structural Dynamics, and Materials Conference, AIAA Paper 89-1389 (1989)]. Structural acoustics is the study of how elastic structures radiate or receive sound, and in its most fundamental form involves the simultaneous solution of the differential equations describing the structure and fluid media with appropriate boundary conditions between the two, i.e., a "fully" coupled analysis. This paper will review the state-ofthe-art of active control utilizing shape memory alloy hybrid composites and present experimental results showing active dynamic tuning by a method called active strain energy tuning (ASET), active control of sound radiation from a clamped-baffled beam, and transient vibration control of a cantilevered beam.

Description

Keywords

Shape memory effect, Composite materials, Structural acoustics, Radiation monitoring, Structural beam vibrations

Citation

Rogers, C. A. (1990). Active vibration and structural acoustic control of shape memory alloy hybrid composites: Experimental results. Journal of the Acoustical Society of America, 88(6), 2803-2811. doi: 10.1121/1.399683