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.

A shape memory alloy adaptive tuned vibration absorber: Design and implementation / Rustighi, E.; Brennan, M. J.; Mace, B. R.. - In: SMART MATERIALS AND STRUCTURES. - ISSN 0964-1726. - 14:1(2005), pp. 19-28. [10.1088/0964-1726/14/1/002]

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

Rustighi, E.;
2005-01-01

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.
2005
1
Rustighi, E.; Brennan, M. J.; Mace, B. R.
A shape memory alloy adaptive tuned vibration absorber: Design and implementation / Rustighi, E.; Brennan, M. J.; Mace, B. R.. - In: SMART MATERIALS AND STRUCTURES. - ISSN 0964-1726. - 14:1(2005), pp. 19-28. [10.1088/0964-1726/14/1/002]
File in questo prodotto:
File Dimensione Formato  
2005_SMS_Rustighi_SMA_ATVA.pdf

Solo gestori archivio

Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 557.45 kB
Formato Adobe PDF
557.45 kB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/290160
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 123
  • ???jsp.display-item.citation.isi??? 106
social impact