Vibration characteristics in a smart bridge model using shape-memory alloy fiber reinforced composite

A. Shimamoto; H. Zhao; H. Abe

doi:10.1117/12.599353

16 May 2005 Vibration characteristics in a smart bridge model using shape-memory alloy fiber reinforced composite

A. Shimamoto, H. Zhao, H. Abe

Proceedings Volume 5761, Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics; (2005) https://doi.org/10.1117/12.599353
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

Abstract

A smart bridge model was proposed for active control on strength and vibration by changing material properties of shape memory alloy embedded in the bridge structure using TiNi/acrylic composite. A systemic experimental study was carried out to investigate the self-strengthening effect by shape recovery of pre-strained TiNi wires as well as vibration control by stiffness changing with direct electric heating method. The deflection and vibration responses are measured by electric strain gages affixed on the bridge floor on which the model train goes through. From these results, we know the smart bridge model of composite material beam has not only been able to reduce the vibration response, but also change the frequency of the structure. The damping and vibration control for the bridge model is confirmed by the measurement.

Citation Download Citation

A. Shimamoto, H. Zhao, and H. Abe "Vibration characteristics in a smart bridge model using shape-memory alloy fiber reinforced composite", Proc. SPIE 5761, Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics, (16 May 2005); https://doi.org/10.1117/12.599353

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