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백주환(Baek Ju-Hwan),민승재(Seungjae Min) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
In the product design process computer-aided engineering and optimization tools are widely utilized in<br/> order to reduce the total development time and cost. Since several simulation tools are involved in the process,<br/> information losses, omissions, or errors are common and the importance of seamless information exchange<br/> among the tools has been increased. In this study ISO STEP standards are adopted to represent the neutral<br/> format for CAE/CAO information exchange. The schema of AP209 is used to define the information of finite<br/> element analysis and the new schema is proposed to describe the information of structural optimization based<br/> on the STEP methodology. The schema is implemented by EXPRESS, information modeling language, and<br/> ST-Developer is employed to generate C++ classes and STEP Rose Library by using the schema denoted. To<br/> substantiate the proposed approach, the information access interfaces of the finite element modeling software<br/> (FEMAP), structural optimization software (GENESIS) and in-house topology optimization program are<br/> developed. Examples of the size optimization of a three-bar truss and topology optimization of a MBB beam<br/> are shown to validate the information exchange of finite element analysis and structural optimization using<br/> STEP standards.