Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Light-Weight Design of Maglev Car-Body Frame Using Response Surface Approximation

반응면 근사를 이용한 자기부상열차 차체 프레임 경량화 설계

  • Bang, Je-Sung (Systems Engineering Research Divisions, Korea Institute of Machinery and Materials) ;
  • Han, Jeong-Woo (Systems Engineering Research Divisions, Korea Institute of Machinery and Materials) ;
  • Lee, Jong-Min (Systems Engineering Research Divisions, Korea Institute of Machinery and Materials)
  • 방제성 (한국기계연구원 시스템엔지니어링연구본부) ;
  • 한정우 (한국기계연구원 시스템엔지니어링연구본부) ;
  • 이종민 (한국기계연구원 시스템엔지니어링연구본부)
  • Received : 2011.04.01
  • Accepted : 2011.06.18
  • Published : 2011.11.01
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Abstract

The light-weight design of UTM (Urban Transit Maglev)-02 car-body frames are performed, based on initial configuration. The thicknesses of fourteen sub-structures are defined as design variables and the loading condition is considered according to weight of sub-structures, electronic and pneumatic modules and passengers. For efficient and robust process of design optimization, objective function and constraints are approximated by response surface approximation. Structural analysis is performed at some sampling points to construct the approximated objective function and constraints composed of design variables. Design space is changed to find many optimal candidates and best optimal design can be found eventually. The Matlab Optimization Toolbox is used to find optimal value and sensitivity analysis about each design variable is also performed.

Keywords

References

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