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Self-adjusted convex approximation method for structural optimization
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DOI：10.1016/S0045-7949(00)00162-0.png)
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This study presents an approximation method called self-adjusted convex approximation for optimum design of structures. The proposed method is a generalization of the convex approximation method. The order of the approximation for each constraint is automatically adjusted in the optimization process. This self-adjusted capability makes the approximate constraint values conservative enough to maintain the optimum point of the approximate problem in the feasible legion. This feature can prevent oscillation of the optimum design point and increase the convergence rate of the redesign process. Results obtained from three examples demonstrate the effectiveness of the proposed method. (C) 2001 Elsevier Science Ltd. All rights reserved.
Keyword:
convex approximation
structural optimization
approximation method
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