Shape optimization of double bottom structure in cooperation with individual mesh sub-division and multi-point constraint

Mitsuru Kitamura, Kinihiro Hamada, Akihiro Takezawa, Tetsuya Uedera

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A structure optimization for the initial design stage using FEM of ship is under consideration in this paper. General bulk carrier is selected for the object of the optimization. Shapes of the bottom structure of ship are taken as design variables. Since the design variables affect the shape of structure, FEM model should be updated during the optimization. Moreover the structure of ship is so large and complicated that make shape optimization of ship structure very difficult. Individual mesh-subdivision technique and multi-point constraint method are introduced for making this optimization possible. However, creating FEM data sets for them requires a lot of manpower. In order to remove this drawback, PrimeShip-Hull is used since it has a function recognizing structure members of ship. A FEM data set which can be applied individual mesh-subdivision technique and multi-point constraint method is made from structure members of PrimeShip-Hull automatically. Five design variables for shape optimization of double bottom structure of ship are considered here and a numerical example is shown.

Original languageEnglish
Title of host publicationThe Proceedings of the 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE
Pages714-719
Number of pages6
Publication statusPublished - 2009
Externally publishedYes
Event19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE - Osaka, Japan
Duration: 2009 Jun 212009 Jun 26

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE
CountryJapan
CityOsaka
Period09/6/2109/6/26

Keywords

  • Bottom structure of ship
  • Bulk carrier
  • Finite element analysis
  • Genetic algorithm
  • Shape optimization
  • Structural design

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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