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Development of GUI Environment Using a Commercial Program for Truss Structure of Approximate Optimization  

임오강 (부산대학교 기계공학부 기계기술연구소)
이경배 (부산대학교 기계설계공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.16, no.4, 2003 , pp. 431-437 More about this Journal
Abstract
In this paper, an approximate optimization program based on GUI(graphic user interface) environment is developed. This program is coded by using Fortran and Visual basic. Fortran is used to Progress approximate optimization process. Visual basic is used to make user environment for user to use conveniently. Inside of this program, it uses two independent programs. One is commercial program, ANSYS, and the other is optimization program, PLBA(Pshenichny-Lim-Belegundu Arora). The former is used to obtain approximate equation of stress and displacement of a structure. The latter is used to solve approximate optimization. This algorithm uses second-order information of a function and active set strategy. This program is connecting ANSYS and PLBA. And it progress the process repeatedly until it obtain optimum value. As a method of approximate optimization, sequential design domain(SDD) is introduced. SDD starts with a certain range which is offseted from midpoint of an initial design domain and then SDD of the next step is determined by optimal point of a prior step.
Keywords
approximate optimization; sequential design domain; GUI environment; response surface methodology; orthogonal array;
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Times Cited By KSCI : 1  (Citation Analysis)
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