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EVALUATION OF SAFETY OF FLOATING ARTIFICIAL ISLANDS

Research Project

Project/Area Number 06402055
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field 海洋工学
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

OHKUSU Makoto  Research Institute of Applied Mechanics Professor, 応用力学研究所, 教授 (70038537)

Co-Investigator(Kenkyū-buntansha) KASHIWAGI Masashi  KYUSHU UNIVERSITY,Research Institute of Applied Mechanics, Associate Professor, 応用力学研究所, 助教授 (00161026)
KUSABA Tadao  KYUSHU UNIVERSITY,Research Institute of Applied Mechanics, Associate Professor, 応用力学研究所, 助教授 (00037871)
OHKUSU Makoto  KYUSHU UNIVERSITY,Research Institute of Applied Mechanics.Professor (70038537)
新開 明二  九州大学, 工学部, 助教授 (10112301)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥17,300,000 (Direct Cost: ¥17,300,000)
Fiscal Year 1995: ¥5,400,000 (Direct Cost: ¥5,400,000)
Fiscal Year 1994: ¥11,900,000 (Direct Cost: ¥11,900,000)
KeywordsFloating structure / Artificial island / Wave force / Wave observation
Research Abstract

Ocean engineers are interested in concept of floating structures as large as several thousand meters long. This type of structures are intended to be used as, for example, floating airports unusual size of them may require new technology especially for accurate evaluation of their safety for very long period, say 100 years. Prediction of their safety must be extremely reliable with this type of structures. Objective of this project is to establish a new methodology for evaluating the safety of large floating structures of unusually large size and unusually large age expected. For this we have studied. (1) Response of floating structures, whose scale is comparable to the topographical scale, to stormy waves and its rational predicition method. (2) Improvement of reliability of wave forecast for very long period (100years) at the sites in particular, close to shore where the floating islands are expected to be deployed. Our results are as follows. (a) Analytical method to predict wave forces on a floating platform supported by numerous floats of vertical and truncated circular cylinder was developed and numerically implemented. In this method the topographical effect at shore region is accounted for mathematically correct way. (b) Hydroelastic behavior of large floating structure interacting sea was studied and its correct prediction method was proposed. (c) We proposed a new methodology of wave forecast at shore region and for very long years based on the wave observation data by the ocean tower of Research Institute of Applied Mechanics, Kyushu University and a new mathematical wave forecast model.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] 大楠丹: "Effect of sloping sea bottom on wave forces acting on a large floating platform" Proc.7th International Conference on the Behaviour of Offshore Structures. 2. 877-888 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 大楠丹: "Wave forces on floating platform on the water of varying depth" Proc.10th International Workshop on Water Waves and Floating Bodies,Oxford UK. 1. 153-156 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 大楠丹: "超大型浮体式海洋構造物に作用する波力に関する研究" 日本造船学会論文集第175号. 131-138 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 大楠丹: "Hydrodynamic Behavior of a Very Large Floating Platform in Waves" Proc.10th International Workshop on Water Waves and Floating Bodies,Hamburg Germany. (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.OHKUSU: "Effect of Sloping Sea Bottom on Wave Forces Acting on a Large Floating Platform" Proc.7th International Conference on the Behavior of Offshore Structures. vol.2. 877-888 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.OHKUSU: "Wave Forces on Floating Platform on the Water of Varying Depth" Proc.10th International Workshoop on Water Waves and Floating Bodies. vol.1. 153-156 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.OHKUSU: "Topographical Effects in Wave Exciting Forces on a Huge Floating Structure" Journal of the Society of Naval Architects of Japan. vol.175. 131-138 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.OHKUSU: "Hydrodynamic Behavior of a Very Large Floating Platform in Waves" Proc.10th International Workshop on Water Waves and Floating Bodies. (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 大楠 丹: "Effect of sloping sea bottom on wave forces acting on a large floating platform" Proc. 7th International Conference on the Behaviour of Offshore Structures. 2. 877-888 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] 大楠 丹: "Wave forces on floating platform on the water of varying depth" Proc. 10th International Workshop on Water Waves and Floating Bodies, Oxford UK. 1. 153-156 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 大楠 丹: "超大型浮体式海洋構造物に作用する波力に関する研究" 日本造船学会論文集第175号. 131-138 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] 大楠 丹: "Hydrodynamic Behavior of a Very Large Floating Platform in Waves" Proc. 10th International Workshop on Water Waves and Floating Bodies, Hamburg Germany. (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 大楠,丹: "Effect of sloping sea bottom on wave forces acting on a large floating platform" Proc.7th International Conference on the Behaviour of Offshore Structures. 2. 877-888 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 大楠,丹: "Wave forces on floating platform on the water of varying depth" Proc.10th International Workshop on Water Waves and Floating Bodies. 1(印刷中). (1995)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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