차체의 다분야 설계제약조건을 고려한 강건최적설계

다국어 초록 (Multilingual Abstract)

This study was conducted to apply for integrated robust optimal design considered multi-disciplinary constrained conditions. Multi-disciplinary constrained conditions mean that lightweight design, structure stiffness and safety. Because such as these design parameters are conflictive relation, it is hard to design optimal model through conventional parameter study. Also robust design process is necessary to consider manufacturing tolerance because of performance deviation. Process was constructed with 4-phase. First phase is formatting the base model. In this study, base model was simplified for efficiency of analysis and also verified with test data simultaneously. In second phase, effect analysis was performed to select design variables largely effecting on performance such as bending and torsion stiffness. Form second phase, totally 11 design variables were selected finally among the 105 variables. Third phase is formatting RBF type Meta-model established by using selected design variables and LHC design of experiment (DOE). In the last phase, optimum result was calculated by using the EasyDesign program. Bending, Torsion stiffness and roof crush reaction force were used for constrained conditions and mass minimization was object function for optimization.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 설계제약조건 및 해석모델
• 3. 메타모델 기반의 강건최적설계
• 4. 결론
• References