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.
| Original language | English |
|---|---|
| Article number | 81 |
| Pages (from-to) | 557-564 |
| Number of pages | 8 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5761 |
| DOIs | |
| Publication status | Published - 2005 |
| Event | Smart Structures and Materials 2005 - Active Materials: Behavior and Mechanics - San Diego, CA, United States Duration: 2005 Mar 7 → 2005 Mar 10 |
Keywords
- Active vibration control
- Shape memory alloy
- Shrinkage force
- Smart bridge
- Smart material
- TiNi alloy