A shape memory alloy adaptive tuned vibration absorber: design and implementation


Rustighi, E., Brennan, M.J. and Mace, B.R. (2005) A shape memory alloy adaptive tuned vibration absorber: design and implementation. Smart Materials and Structures, 14, (1), 19-28. (doi:10.1088/0964-1726/14/1/002).

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Description/Abstract

In this paper a tuned vibration absorber (TVA) is realized using shape memory alloy (SMA) elements. The elastic modulus of SMA changes with temperature and this effect is exploited to develop a continuously tunable device.

A TVA with beam elements is described, a simple two-degree-of-freedom model developed and the TVA characterized experimentally. The behaviour during continuous heating and cooling is examined and the TVA is seen to be continuously tunable. A change in the tuned frequency of 21.4% is observed between the cold, martensite, and hot, austenite, states. This corresponds to a change in the elastic modulus of about 47.5%, somewhat less than expected.

The response time of the SMA TVA is long because of its thermal inertia. However, it is mechanically simple and has a reasonably good performance, despite the tuning parameters depending on the current in a strongly nonlinear way.

Item Type: Article
ISSNs: 0964-1726 (print)
Related URLs:
Subjects: T Technology > TN Mining engineering. Metallurgy
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: University Structure - Pre August 2011 > Institute of Sound and Vibration Research > Signal Processing and Control
ePrint ID: 28018
Date Deposited: 28 Apr 2006
Last Modified: 27 Mar 2014 18:16
URI: http://eprints.soton.ac.uk/id/eprint/28018

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