Ship Structural Design by means of Design Irregular Wave

• Project/Area Number: 19560804
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Naval and maritime engineering
• Research Institution: Kanazawa Institute of Technology
• Principal Investigator: FUKASAWA Toichi Kanazawa Institute of Technology, 工学部, 教授 (80143171)
• Research Collaborator: MIYAZAKI Satoshi 三菱重工業(株), 長崎造船所造船設計部船殻設計課, 技師
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2007: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 船体構造設計 / 設計不規則波 / 直接荷重解析法 / 大型コンテナ船 / 非線形計算

Research Abstract

A methodology to estimate the maximum local stress of a ship in slamming condition was proposed in this research. The calculation procedure consists of four levels ; the definition of the design short-term sea state and the design irregular wave, the estimation of nonlinear ship motion and distortion as a flexible beam in slamming condition, the estimation of nonlinear pressure distribution, and the stress analysis of the entire ship structure. The validity of the method was clarified from the viewpoint of ship structural design.

Research Products

• [Journal Article] Estimation of pressure and stress distributions of a container ship in slamming condition (2009)
  • Author(s): Toichi Fukasawa, Satoshi Miyazaki
  • Journal Title: Hydroelasticity in Marine Technology Pages: 193-202
  • Peer Reviewed
• [Journal Article] Estimation of pressure and stress distributions of a container ship in slamming condition (2009)
  • Author(s): Toichi Fukasawa, Satoshi Miyazaki
  • Journal Title: Hydroelasticity in Marine Technology2009 (掲載確定)
  • Peer Reviewed
• [Presentation] Estimation of Pressure and Stress Distributions of a Container Ship in Slamming Condition (2009)
  • Author(s): T. Fukasawa, S. Miyazaki
  • Organizer: 5th Int. Conf. on Hydorelasticity in Marine Technology(139-202)
  • Place of Presentation: Southampton, UK
• [Presentation] Estimation of the Maximum Local Stress of a Container Ship on the North-Pacific Shipping Route (2008)
  • Author(s): T. Fukasawa
  • Organizer: 22nd Asian-Pacific Technical Exchange and Advisory Meeting on Marine Structures(324-330)
  • Place of Presentation: Istanbul, Turkey
• [Presentation] Estimation of maximum stress of a container ship by means of Design Irregular Wave and Direct Loading Analysis Method (2007)
  • Author(s): T. Fukasawa, S. Miyazaki
  • Organizer: 10th Int. Symp. on Practical Design of Ships and Other Floating Structures(716-723)
  • Place of Presentation: Houston, USA