追波、斜め追波中におけるトリマランの動的挙動の定性的性質

• 梅田 直哉

  大阪大学大学院工学研究科

• 荒木 元輝

  大阪大学大学院工学研究科

• 橋本 博公

  大阪大学大学院工学研究科

書誌事項

タイトル別名

• Qualitative Aspects of Dynamic Behaviours of Trimaran in Astern Seas
• ツイハ ナナメツイハ チュウ ニ オケル トリマラン ノ ドウテキ キョドウ ノ テイセイテキ セイシツ

抄録

For identifying possible danger of a trimaran running in following and quartering waves, numerical simulation in the time domain was systematically conducted. Here a surge-sway-yaw-roll manoeuvring model with a PD autopilot was used. The manoeuvring forces, the roll restoring moment and the wave-exciting forces are calculated for the trimaran with hydrodynamic interaction among three hulls taken into account. As a result, as well as harmonic motions and stable surf-riding, repeated broaching within one wavelength at higher speed and sub-harmonic yaw motions with large amplitude at lower speed are found. This repeated broaching could be chaotic via period doubling. These phenomena do not result in capsizing thanks to large restoring arm due to side-hulls but are threats to safe manoeuvring. They can be prevented by increasing the magnitude of differential gain for the auto pilot.

収録刊行物

• 日本船舶海洋工学会論文集

  日本船舶海洋工学会論文集 10 135-141, 2009

  公益社団法人 日本船舶海洋工学会

詳細情報

• CRID: 1390001205255311232
• NII論文ID: 10025983869
• NII書誌ID: AA12057769
• DOI: 10.2534/jjasnaoe.10.135
• ISSN: 18811760
• ISSN: 18803717
• NDL書誌ID: 10585699
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10585699
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可