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), pp. 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
Digital Object Identifier (DOI): doi:10.1088/0964-1726/14/1/002
Subjects:
ePrint ID: 28018
Date :
Date Event
2005Published
Date Deposited: 28 Apr 2006
Last Modified: 16 Apr 2017 22:28
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/28018

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