크리깅 근사모델 모델을 이용한 LMTT 이동체의 구조최적설계

다국어 초록 (Multilingual Abstract)

LMTT (Linear Motor-based Transfer Techn-ology) is a horizontal transfer system for the yard automation, which has been proposed to take the place of AGV(Automated Guided Vehicle) in the maritime container terminal. The system is base don PMLSM (Permanent Magnetic Linear Synchronous Motor) that consists of stator modules on the rail and shuttle car. It is desirable to reduce the weight of LMTT in order to control the electronic devices with minimum energy. In this research, the DACE modeling known as the one of Kriging interpolation, is introduced to obtain the surrogate approximation model of the structural responses. Then the GRG(Generalized Reduced Gradient) method built in Excel is adopted to determine the optimum. The objective function is set up as weight. On the contrary, the design variables are considered as transverse, longitudinal and wheel beam's thicknesses, and the constraints are the maximum stresses generated by four loading conditions.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 유한요소해석 및 최적설계정식화
• 3. 크리킹 모델을 이용한 최적화 이론
• 4. 최적화 결과
• 5. 결론
• 후기
• 참고문헌