한국전산유체공학회:학술대회논문집

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
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강제대류 열전달을 이용한 형상기억합금 작동기

Forced Convection heated and cooled SMA(Shape Memory Alloy) Actuator

  • Jun Hyoung Yoll (Communication Staekkite System Department COMS Program Office, KARI) ;
  • Kim Jung-Hoon (Communication Staekkite System Department COMS Program Office, KARI) ;
  • Park Eung Sik (Communication Staekkite System Department COMS Program Office, KARI)
  • 발행 : 2005.04.01
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초록

This work discusses the numerical analysis, the design and experimental test of the SMA (Shape Memory Alloy) actuator along with its capabilities and limitations. Convection heating and cooling using water actuate the SMA 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 actuation frequency is compared with the prediction obtained from numerical analysis. For the designed SMA actuator system, the results of numerical analysis were utilized in determining design parameters and operating conditions.

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