Establishment of Method to Assess Longitudinal Strength of Ship's Hull Girder

2009 Fiscal Year Final Research Report

• Project/Area Number: 18106015
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: Naval and maritime engineering
• Research Institution: Osaka University
• Principal Investigator: YAO Tetsuya Osaka University, 名誉教授 (20029284)
• Co-Investigator(Kenkyū-buntansha): FUJIKUBO Masahiko 大阪大学, 工学研究科, 教授 (30156848) ; OSAWA Naoki 大阪大学, 工学研究科, 教授 (90252585) ; IIJIMA Kazuhiro 大阪大学, 工学研究科, 講師 (50302758) ; SAWAMURA Junji 大阪大学, 工学研究科, 助教 (90359670) ; TANAKA Yoshiteru 海上安全技術研究所, 生産システム系, 系長 (40373419) ; KAWABE Hiroshi サムソン重工業(株), 海洋研究所, 研究員 (00384876)
• Project Period (FY): 2006 – 2009
• Keywords: 船舶 / 船体構造 / 波浪荷重 / 構造解析 / 座屈強度 / 最終強度 / 信頼性解析

Research Abstract

In order to establish a total system to assess ultimate longitudinal strength of ship's hull girder under combined bending, torsion and shear, (1) efficient and accurate method of progressive collapse analysis of ship's hull girder under combined loads, (2) method of analysis of extreme wave loads on ships in rough seas, and (3) method of structural safety assessment of ship's hull girder based on structural reliability analysis were developed. Collapse tests of 1/13-scale container ship models under combined bending and torsion were carried out and their progressive collapse behavior and ultimate strength interaction relatioship were investigated.

Research Products

• [Journal Article] Structural response of a ship in severe seas considering global hydroelastic vibrations (2008)
  • Author(s): Iijima, K., Yao, T., Moan, T.
  • Journal Title: Marine Structures Vol.21 Pages: 420-445
  • Peer Reviewed
• [Journal Article] 設計基準の変遷に応じた船体縦曲げ崩壊に対する安全性の変化 (2007)
  • Author(s): 藤井康成, 飯島一博, 長瀬裕一, 矢尾哲也
  • Journal Title: 日本船舶海洋工学会論文集 第7巻 Pages: 233-241
  • Peer Reviewed
• [Journal Article] 桁構造の崩壊挙動を再現する理想化構造要素の開発と二重底構造の崩壊解析への適用 (2007)
  • Author(s): 石橋公也, 藤久保昌彦, 矢尾哲也
  • Journal Title: 日本船舶海洋工学会論文集 第5巻 Pages: 217-225
  • Peer Reviewed
• [Journal Article] 有孔パネルの応答を表す理想化構造要素の開発 (2006)
  • Author(s): 石橋公也, 藤久保昌彦, 矢尾哲也
  • Journal Title: 日本船舶海洋工学会論文集 第3巻 Pages: 285-293
  • Peer Reviewed
• [Journal Article] Methodologies on Hull Girder Ultimate Strength Assessment of FPSOs
  • Author(s): Wang, X., Sun, H., Yao, T., Fujikubo, M., Basu, R.
  • Journal Title: Trans. of the ASME, J. of Offshore Mechanics and Arctic Engineering (to be published)
  • Peer Reviewed
• [Presentation] Development of ISUM Plate Element Considering Buckling under Combined Thrust, Bending and Shear (2009)
  • Author(s): Takami, T., Fujikubo, M., Pei, ZY., Iijima K., Yao, T.
  • Organizer: Proc. of the 23rd Technical Exchange and Advisory Meeting on Marine Structures (TEAM)
  • Place of Presentation: Kaohsiung, Taiwan
  • Year and Date: 2009-12-02
• [Presentation] Total System Including Capacity Calculation Applying ISUM/FEM and Loads Calculation for Progressive Collapse Analysis of Ship's Hull Girder in Longitudinal Bending (2009)
  • Author(s): Yao, T., Fujikubo, M., Iijima, K., Pei, ZY.
  • Organizer: Proc. of the 19th Int. Offshore and Polar Engineering Conference (ISOPE)
  • Place of Presentation: Osaka, Japan
  • Year and Date: 2009-06-24
• [Presentation] Prediction of the Secondary Buckling Strength and Ultimate Strength of Cylindrically Curved Plate under Axial Compression (2009)
  • Author(s): Park, J.S., Fujikubo, M., Iijima, K., Yao, T.
  • Organizer: Proc. of the 19th ISOPE
  • Place of Presentation: Osaka, Japan
  • Year and Date: 2009-06-24
• [Presentation] Longitudinal Strength of Container Ships under Combined Torsional and Bending Moments (2009)
  • Author(s): Tanaka, Y., Ando, T., Aanai, Y., Yao, T., Fujikubo, M., Iijima, K.
  • Organizer: Proc. of the 19th ISOPE
  • Place of Presentation: Osaka, Japan
  • Year and Date: 2009-06-24
• [Presentation] Long-Term Extreme Value Distribution of Vertical Bending Moment of a Ship (2008)
  • Author(s): Kurata, S., Iijima, K., Fujikubo, M.
  • Organizer: Proc. of the 22nd TEAM
  • Place of Presentation: Istanbul, Turkey
  • Year and Date: 2008-10-08
• [Presentation] arget Reliability for Hull Girder Ultimate Strength of Bulk Carriers and Tankers by a Risk Model (2008)
  • Author(s): Sasaki, Y., Iijima K., Fujikubo, M.
  • Organizer: Proc. of the 22nd TEAM
  • Place of Presentation: Istanbul, Turkey
  • Year and Date: 2008-10-08
• [Presentation] Analytical Method for Simulation of Buckling and Postbuckling Behaviour of Cylindrically Curved Plates under Axial Compression (2008)
  • Author(s): Park. J.S., Iijima, K., Yao, T., Fujikubo, M.
  • Organizer: Proc. of the 22nd TEAM
  • Place of Presentation: Istanbul, Turkey
  • Year and Date: 2008-10-08
• [Presentation] Estimation of Buckling and Collapse Behaviour of Stiffened Curved Plates under Compressive Loads (2008)
  • Author(s): Park, J.S., Iijima, K., Yao, T.
  • Organizer: Proc. of the 18th ISOPE
  • Place of Presentation: Vancouver, Canada
  • Year and Date: 2008-07-08
• [Presentation] Characteristics of Hull Girder Collapse Behaviour under Longitudinal Bending (2007)
  • Author(s): Yamamoto, M., Fujii, Y., Iijima, K., Yao, T.
  • Organizer: Proc. of the 21st TEAM
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 2007-09-11
• [Presentation] Collapse Analysis of Ship's Double Bottom Structures with ISUM (2007)
  • Author(s): Ishibashi, K., Fujikubo, M., Yao, T.
  • Organizer: Int. Conf. on Computational Methods in Marine Engineering (MARINE 2007)
  • Place of Presentation: Barcelona, Spain
  • Year and Date: 2007-06-06