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Topology optimum design of compliant mechanisms using modified ant colony optimization

Title
Topology optimum design of compliant mechanisms using modified ant colony optimization
Author
한석영
Keywords
Compliant mechanisms; Geometrically nonlinear; Modified ant colony algorithm (MACO); Topology optimization
Issue Date
2015-08
Publisher
KOREAN SOC MECHANICAL ENGINEERS
Citation
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v. 29, NO 8, Page. 3321-3327
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.
URI
https://link.springer.com/article/10.1007/s12206-015-0729-2http://hdl.handle.net/20.500.11754/27015
ISSN
1738-494X; 1976-3824
DOI
10.1007/s12206-015-0729-2
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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