• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Prediction of Effects of Hull Forms on Seakeeping Qualities of Ships

Research Project

Project/Area Number 61302053
Research Category

Grant-in-Aid for Co-operative Research (A)

Allocation TypeSingle-year Grants
Research Field 船舶抵抗・運動性能・計画
Research InstitutionKyushu University

Principal Investigator

OHKUSU Makoto  Research Institute for Applied Mechanics, Kyushu University, 応用力学研究所, 教授 (70038537)

Co-Investigator(Kenkyū-buntansha) MAEDA Hisaaki  Institute of Industrial Science, University of Tokyo, 生産技術研究所, 教授 (80013192)
SHIN Chanik  Faculty of Enginneering, Nagasaki Institute of Applied Science, 工学部, 助教授 (20086391)
NAITO Shigeru  Faculty of Engineering, Osaka University, 工学部, 助教授 (20093437)
TAKAKI Mikio  Faculty of Engineering, Hiroshima University, 工学部, 教授 (00038556)
KASHIWAGI Masashi  Research Institute for Applied Mechanics, Kyushu University, 応用力学研究所, 助教授 (00161026)
中村 彰一  高知工業高等専門学校, 校長 (60028909)
Project Period (FY) 1986 – 1987
Project Status Completed (Fiscal Year 1987)
Budget Amount *help
¥7,800,000 (Direct Cost: ¥7,800,000)
Fiscal Year 1987: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 1986: ¥5,100,000 (Direct Cost: ¥5,100,000)
KeywordsAdded resistance / Seakeeping / Capsize / 船型 / 波形解析 / 非定常波紋 / 肥大船首 / 転覆機構 / 自由水影響
Research Abstract

Objective of this study is to develop a systematic method for predicting added resistance in waves and safety of a ship under the effects of deck wetting. Such systematic method will be useful for evaluating hull form from its seakeeping qualities. Several methods available do not necessarily serve this purpose. They do not give accurate prediction which reflect correctly the effects of a little difference between hull forms. So we need to develop new methods particularly for added resistance and transient motions leading to capsize under the influence of water on deck, since those have not been fully investigated so far.
What we have done in this study are as follows: 1. We presented several experimental data to show clearly bow shape's effect on the unsteady wave pattern generated by a ship running in waves. This effect was described by a new thoretical approach we developed, accuracy of prediction of added resistance when bow shape is blunt is improved considerably by this new method. 2. A simple method was investigated for computing hydrodynamic forces with the finite magnitude effects of motion taken into consideration. 3. We succeeded in providing computer simulation of capsizing when sea water is coming onto deck over bulwark. This simulation program enables us to evaluate the height of bulwark on the safety of ships. 4. 3D panel method in which the boundary condition on the hull surface is accurately satisfied was applied for predicting added resistance even in oblique and following waves. With some improvements in computational technique, this method is useful for eavaluating hull forms with a little difference from the standpoint of added resistance.

Report

(2 results)
  • 1987 Final Research Report Summary
  • 1986 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] 慎 燦益: Proceedings of 3rd International Conference on Stability of Ships and Ocean Vehicles. VOL.11. 189-199 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 慎 燦益: 日本造船学会論文集. 161. 111-118 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 大楠 丹: Proceedings of 3rd International Symposium on Practical Design of Ships & Mobil Units. VOL.1. 643-652 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 内藤 林: 関西造船協会誌. 208. (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 柏木 正: Proceedings of 3rd International Workshop on Water Waves and Floating Bodies. (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Chanik SHIN: "The Effects of Deck Wetting on the Stability of Ships in Beam Seas" Proceedings of 3rd International Conference on Stability of Ships and Ocean Vehicles. 2. 189-199 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Chanik SHIN: "The Effects of Shipping Water on the Stability of Ships in Beam Seas" Journal of the Society of Naval Architects of Japan. 161. 111-118 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Makoto OHKUSU: "Prediction of Wave Forces in Following Oblique Waves" Proceedings of 3 rd International Symposium on Practical Design of Ships & Mobil Units. 1. 643-652 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Shigeru NAITO: "Added Resistance in Regular Head Waves of a Ship with Blunt Bow" Journal of the Kansai Society of Naval Architects, Japan. 208. (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Masashi KASHIWAGI: "Radiation Problem of a Two-Dimensional Surface-Piercing Body with Forward Speed" Proceedings of 3rd International Workshop on Water Waves and Floating Bodies. (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 大楠丹: 西部造船会会報. 第73号. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 大楠丹: 関西造船協会誌. 第202号. 39-42 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] 慎燦益: Proc.of 3rd International Conference on Stability of Ships & Ocean Vehicles. vol.2. 189-199 (1986)

    • Related Report
      1986 Annual Research Report

URL: 

Published: 1987-03-31   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi