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B-spline Curve Fitting과 심플렉스법을 적용한 자동차 록업클러치 피스톤 형상최적설계에 관한 연구
김철(Choel Kim),현석정(Seokjeong Hyun),손종호(Jongho Son),신세현(Sehyun Shin) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.11
An efficient method is developed for the shape optimization of 2-D structures. The sequential linear<br/> programming is used for minimization problems. Selected set of master nodes are employed as design<br/> variables and assigned to move towards the normal direction. After adapting the nodes on the design<br/> boundary, the B-spline curves and mesh smoothing schemes are used to maintain the finite element in<br/> good quality. Finally, a numerical implementation of optimum design of an automobile torque converter<br/> piston subjected to pressure and centrifugal loads is presented. The results shows additional weight up<br/> to 13% may be saved after the shape optimization.