MEMS, NEMS, Shape Memory Alloys, Mechanical Damping
Micro-scale and nano-scale electromechanical systems
Suppression of vibration and impact shock to maintain integrity of system operation
This invention provides a mechanical structure with a crystalline superelastic alloy, characterized by a small grain size and a martensitic phase transformation resulting from a mechanical stress input. The structure enables ultra-high-damping performance with response times in the order of just a few milliseconds. The basic mechanism by which the alloys can dissipate mechanical energy efficiently is through their reversible thermoelastic transformation between the austenite phase and the martensite phase. As a realization of the technology, a mechanical damping system can be designed as the mechanical connection between a mechanical system and a mechanical support.
Efficient and reliable mechanical damping suitable for new generations of micro and nano electromechanical systems
U.S. Patent Number 8,282,746, issued on October 9, 2012
Last revised: January 19, 2012
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