개미 군집 알고리즘을 이용한 비선형 열 컴플라이언트 기구의 위상최적설계
- 개미 군집 알고리즘을 이용한 비선형 열 컴플라이언트 기구의 위상최적설계
- Other Titles
- Topology optimization of nonlinear thermal compliant mechanism using ant colony algorithm
- Alternative Author(s)
- Ryu, Su Pil
- Issue Date
- Swarm intelligence implies that social insects such as ants and bees achieve complicated tasks through their collaboration although each member isn't intelligent. Real ants deposit chemicals called pheromone at each routes while moving toward food. Since then, other ants select next path using pheromones information piled that path. Ant colony algorithm of many swarm intelligence algorithms come up with above principle.
In this paper, Topology optimization of heat conduction problem and linear and nonlinear thermal compliant mechanism problem are studied using ant colony algorithm. Especially nonlinear topology optimization of thermal compliant mechanism considers geometrical nonlinearity and uses complementary work as a objective function.
Formulation and sensitivity number are suggested corresponding to each problems and presented modified ant colony optimization suitably for each problems to apply ant colony optimization. In the case of heat conduction problem, Accumulated position of ants were used when finite element analysis are performed unlike using established ant position. On the other hand, Pheromones were used in the case of thermal compliant mechanism and accelerating method was introduced to increase quality of solution and convergence rate.
Examples are chosen to demonstrate the effectiveness of application of proposed method. Through comparison between linear and nonlinear thermal compliant mechanism, Proved that nonlinear case generates larger deformation than linear case. Verified the influence of spring stiffness through change of spring stiffness installed at the output port.
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- GRADUATE SCHOOL[S](대학원) > MECHANICAL ENGINEERING(기계공학과) > Theses (Master)
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