Journal of computational fluids engineering (한국전산유체공학회지)
- Volume 10 Issue 2
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- Pages.48-53
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- 2005
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- 1598-6071(pISSN)
SMA(SHAPE MEMORY ALLOY) ACTUATOR USING FORCED CONVECTION
강제 대류를 이용한 형상기억합금 작동기
- Jun Hyoung Yoll (Communication Satellite System Department COMS Program Office, KARI) ;
- Kim Jung-Hoon (Communication Satellite System Department COMS Program Office, KARI) ;
- Park Eung Sik (Communication Satellite System Department COMS Program Office, KARI)
- Published : 2005.06.01
Abstract
This work discusses the numerical analysis, the design and experimental test of the SMA actuator along with its capabilities and limitations. Convective heating and cooling using water actuate the SMA(Shape memory alloy) element of the actuator. The fuel such as propane, having a high energy density, is used as the energy source for the SMA actuator in order to increase power and energy density of the system, and thus in order to obviate the need for electrical power supplies such as batteries. The system is composed of a pump, valves, bellows, a heater(burner), control unit and a displacement amplification device. The experimental test of the SMA actuator system results in 150 MPa stress(force : 1560 N) with