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논문 기본 정보

자료유형
학술저널
저자정보
Wu, Houxiao (National Natural Science Foundation of China) Luan, Xiaodong (National Natural Science Foundation of China) Mu, Zaigen (National Natural Science Foundation of China)
저널정보
한국공간구조학회 한국공간구조학회지 한국공간구조학회지 제5권 제3호
발행연도
2005.1
수록면
117 - 122 (6page)

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This paper investigated the optimum design of truss structures based on Genetic Algorithms (GA's). With GA's characteristic of running side by side, the overall optimization and feasible operation, the optimum design model of truss structures was established. Elite models were used to assure that the best units of the previous generation had access to the evolution of current generation. Using of non-uniformity mutation brought the obvious mutation at earlier stage and stable mutation in the later stage; this benefited the convergence of units to the best result. In addition, to avoid GA's drawback of converging to local optimization easily, by the limit value of each variable was changed respectively and the genetic operation was performed two times, so the program could work more efficiently and obtained more precise results. Finally, by simulating evolution process of nature biology of a kind self-organize, self-organize, artificial intelligence, this paper established continuous structural optimization model for ten bars cantilever truss, and obtained satisfactory result of optimum design. This paper further explained that structural optimization is practicable with GA's, and provided the theoretic basis for the GA's optimum design of structural engineering.

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