Topology optimum design of compliant mechanisms using modified ant colony optimization
- Authors
- Yoo, Kwang-Seon; Han, Seog-Young
- Issue Date
- Aug-2015
- Publisher
- KOREAN SOC MECHANICAL ENGINEERS
- Keywords
- Compliant mechanisms; Geometrically nonlinear; Modified ant colony algorithm (MACO); Topology optimization
- Citation
- JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v.29, no.8, pp.3321 - 3327
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
- Volume
- 29
- Number
- 8
- Start Page
- 3321
- End Page
- 3327
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/156641
- DOI
- 10.1007/s12206-015-0729-2
- ISSN
- 1738-494X
- Abstract
- A Modified ant colony optimization (MACO) algorithm was suggested for topology optimal design of compliant mechanisms since standard ACO cannot provide an appropriate optimal topology. In order to improve computational efficiency and suitability of standard ACO algorithm in topology optimization for compliant mechanisms, a continuous variable, called the "Element contribution significance (ECS)," is employed, which serves to replace the positions of ants in the standard ACO algorithm, and assess the importance of each element in the optimization process. MACO algorithm was applied to topology optimizations of both linear and geometrically nonlinear compliant mechanisms using three kinds of objective functions, and optimized topologies were compared each other. From the comparisons, it was concluded that MACO algorithm can effectively be applied to topology optimizations of linear and geometrically nonlinear compliant mechanisms, and the ratio of Mutual potential energy (MPE) to Strain energy (SE) type of objective function is the best for topology optimal design of compliant mechanisms.
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