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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).

Record type: Article


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.

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Published date: 2005


Local EPrints ID: 28018
PURE UUID: 982ead46-e974-49a8-9fc1-924468005587
ORCID for E. Rustighi: ORCID iD

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Date deposited: 28 Apr 2006
Last modified: 15 Sep 2017 16:31

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