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J. Phys. IV France
Volume 07, Numéro C5, November 1997
IVth European Symposium on Martensitic Transformations
Page(s) C5-649 - C5-653
IVth European Symposium on Martensitic Transformations

J. Phys. IV France 07 (1997) C5-649-C5-653

DOI: 10.1051/jp4:19975103

Real-Time Control of Resonance in "Smart" Shape-Memory Alloy Hybrid Laminates

C.M. Friend and P.J. Armstrong

School of Engineering & Applied Science, Cranfield University, Shrivenham Campus, Swindon, Wiltshire SN6 8LA, U.K.

Active Strain Energy Tuning (ASET) using Shape-Memory Actuators has been proposed for the vibration control of "smart" composite structures. This paper presents preliminary experimental measurements on some simple prototype SMA hybrid "Smart" structures. The results confirm previous modelling and show that ASET can indeed be used to control vibration characteristics. The most significant control mechanism appears to be realtime shifting of resonance frequency. This practical implementation also reveals additional factors which must be considered when designing such structures.

© EDP Sciences 1997