Vibration damping and heat transfer using material phase changes
- Houston, TX
- Oakland, CA
A method and apparatus wherein phase changes in a material can dampen vibrational energy, dampen noise and facilitate heat transfer. One embodiment includes a method for damping vibrational energy in a body. The method comprises attaching a material to the body, wherein the material comprises a substrate, a shape memory alloy layer, and a plurality of temperature change elements. The method further comprises sensing vibrations in the body. In addition, the method comprises indicating to at least a portion of the temperature change elements to provide a temperature change in the shape memory alloy layer, wherein the temperature change is sufficient to provide a phase change in at least a portion of the shape memory alloy layer, and further wherein the phase change consumes a sufficient amount of kinetic energy to dampen at least a portion of the vibrational energy in the body. In other embodiments, the shape memory alloy layer is a thin film. Additional embodiments include a sensor connected to the material.
- Research Organization:
- William Marsh Rice University (Houston, TX)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- 03891-99-23
- Assignee:
- William Marsh Rice University (Houston, TX)
- Patent Number(s):
- 7,506,735
- Application Number:
- 10/866,973
- OSTI ID:
- 986584
- Country of Publication:
- United States
- Language:
- English
Thermal stabilization of shape memory alloy wires
|
conference | August 2003 |
Computational modeling of vibration damping in SMA wires
|
journal | July 2004 |
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