独立要素分割と多点拘束を利用した船体構造二重底部の形状および寸法最適設計に関する研究  [in Japanese] Shape and Size Optimization of Bottom Part of Ship Structure by Independent Mesh-subdivision Technique with Aide of Multiple Point Constraint  [in Japanese]

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Author(s)

Abstract

A structure optimization for the initial design of ship is under consideration in this paper. A bulk career is selected for the object of the optimization. Both the shapes and the plate thicknesses of a bottom structure of ship are taken as design variable simultaneously. Totally 66 design variables, 4 for shape and 62 for thickness, are considered here. Individual mesh sub-division technique and multi-point constrain method are introduced for making this optimization possible. In order for reducing computational effort, a sensitivity analysis is used instead of FEM, and the validity of using it is examined. Degree of influence for design variables to stress is introduced for reducing computational efforts. Computational results are compared with a real ship data and a great performance is observed for the optimal design with considering the size and the plate thickness of a ship structure. Multi Island Genetic algorithm is used for this optimization in this study.

Journal

  • Journal of the Japan Society of Naval Architects and Ocean Engineers

    Journal of the Japan Society of Naval Architects and Ocean Engineers (7), 89-96, 2008-06-01

    The Japan Society of Naval Architects and Ocean Engineers

References:  6

Cited by:  2

Codes

  • NII Article ID (NAID)
    110006965122
  • NII NACSIS-CAT ID (NCID)
    AA12057769
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    18803717
  • NDL Article ID
    9619426
  • NDL Source Classification
    ZN24(科学技術--運輸工学--船舶)
  • NDL Call No.
    Z74-E724
  • Data Source
    CJP  CJPref  NDL  NII-ELS  J-STAGE  NDL-Digital 
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