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차량 A-필러, 패키지 트레이 경량화를 위한 소재 선정 최적설계

Title
차량 A-필러, 패키지 트레이 경량화를 위한 소재 선정 최적설계
Other Titles
Design Optimization of Vehicle A-Pillar and Package Tray for Light-weight by Material Selection
Author
최동훈
Keywords
메타모델; 직교배열법; 진화 알고리즘; 최적설계; RBFr; Metamodel; Orthogonal array; Radial basis function regression; Evolutionary algorithm; Design optimization
Issue Date
2011-11
Publisher
한국자동차공학회
Citation
한국자동차공학회 학술대회 및 전시회,Vol.2011 No.11 [2011],1883-1886(4쪽)
Abstract
This study proposes an optimal material selection method for minimizing the weight of A-pillar and package tray while satisfying design requirements on static stiffness values and dynamic stiffness values. First, we formulate a material selection optimization problem. Next, we establish the CAE procedure of evaluating static and dynamic stiffness values. Then, to enhance the efficiency of design work, we integrate and automate the established CAE procedure using a commercial process integration and design optimization tool, PIAnO. For effective optimization, we adopt the approach of metamodel based approximate optimization. We select sampling points using an orthogonal array for generating radial basis function regression models, and carry out the optimization for selecting optimum material combination using an evolutionary algorithm that can handle discrete design variables. Material optimization result reveals that the weight is reduced by 49.8% while satisfying all the design constraints.
URI
http://www.dbpia.co.kr/Journal/ArticleDetail/NODE01762497http://hdl.handle.net/20.500.11754/57654
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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