A Study on Characteristics of Rolling in Head Waves of a Vessel with Nonlinear GZ-curve

非線形な復原力曲線を持つ船舶の向波中横揺れ特性に関する基礎的研究

In this study, the characteristics of rolling in head waves for a vessel with nonlinear GZ-curve, which includes parametric rolling, are investigated. Rolling is measured for systematically changed wave length and height under the same forward speed, which is service speed in heavy weather. As the results, the range of Te/Tø (Te and Tø are encounter wave period and roll natural period), when periodic rolling occurs, is wider than one of previous results by Taguchi et al, and the range spreads out wider range of Te/Tø>0.5. Especially, in the range of Te/Tø>0.5, roll amplitude becomes large, and a periodic rolling occurs at large wave height. It is supposed that the result is caused by the effects of roll amplitude on roll natural period. Then, numerical simulations are carried out for some variation of GZ-curves to confirm the measured results. Additionally, roll measurements in superposed waves of two different wave periods and in the irregular wave with Pierson-Moskowitz spectrum are also carried out.

• Record URL:
  https://doi.org/10.2534/jjasnaoe.15.11
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=A+Study+on+Characteristics+of+Rolling+in+Head+Waves+of+a+Vessel+with+Nonlinear+GZ-curve&author=T.+Katayama&author=S.+Miyamoto&author=H.+Hashimoto&author=Y.+Tai&publication_year=2012
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/18803717
• Authors:
  • Katayama, Toru
  • Miyamoto, Shugo
  • Hashimoto, Hirotada
  • Tai, Yoshifumi
• Publication Date: 2012

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; References; Tables;
• Pagination: pp 11-20
• Serial:
  • Journal of the Japan Society of Naval Architects and Ocean Engineers
  • Volume: 15
  • Issue Number: 0
  • Publisher: Japan Society of Naval Architects and Ocean Engineers
  • ISSN: 1880-3717
  • EISSN: 1881-1760
  • Serial URL: https://www.jstage.jst.go.jp/browse/jjasnaoe/-char/en
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Numerical analysis; Rolling; Ships; Simulation; Wave height
• Subject Areas: Hydraulics and Hydrology; Marine Transportation; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01505687
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Jan 27 2014 11:27AM