Design Optimization of Micro Thermal Actuator Considering Structural Performance

구조역학적 성능을 고려한 마이크로 열변형 액추에이터의 최적설계

  • 황경호 (연세대학교 대학원 기계공학과) ;
  • 이종수 (연세대학교 기계공학부)
  • Published : 2008.03.01

Abstract

The paper deals with the numerical analysis and design optimization of polysilicon micro thermal flexure actuator. The deflection of a thermal actuator is implicitly related to the actuation time so that such deflection is to be maximized under the consideration of structural performances such as maximum stress and natural frequencies. At first, the structural formulation of a thermal actuator is reviewed, and its CAE based simulation is performed to verify the numerical model. A parametric study is then conducted to identify the mainly effective design variables. Finally, the design of a micro thermal actuator is explored in the context of deterministic optimization and reliability based design optimization in the present study.

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