Investigation of Roll-Coupling Effect on Ship Maneuverabilty
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- Yasukawa Hironori
- 広島大学大学院工学研究院
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- Yoshimura Yasuo
- 北海道大学水産科学研究院
Bibliographic Information
- Other Title
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- 船の操縦性に及ぼす横揺連成影響について
- フネ ノ ソウジュウセイ ニ オヨボス ヨコユレレンセイエイキョウ ニ ツイテ
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Abstract
Roll-coupling effect on ship maneuvering motions is not negligible for high speed vessels, large container ships, passenger ships and so on. To perceive the roll-coupling effect on the ship maneuverability, in this paper, approximate formulas for course stability criterion, steady turning index and the response time until reaching to steady turning (time constant) in the framework of the linear motion theory were derived on the assumption where the depthwise acting point of lateral force with respect to roll moment is constant even in any modes such as oblique moving, turning, rolling and steered conditions. Using the hydrodynamic derivatives measured in tank tests for 3 ship models, the roll-coupling effect on the ship maneuverability is discussed. The course stability becomes worse with increase of Froude number of the ship and/or decrease of metercentric height in general, and the turning performance is improved and the time constant becomes long. The approximate formulas have sufficient calculation accuracy and the formulas are useful for conventionally checking the ship maneuverability.
Journal
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- Journal of the Japan Society of Naval Architects and Ocean Engineers
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Journal of the Japan Society of Naval Architects and Ocean Engineers 17 (0), 57-64, 2013
The Japan Society of Naval Architects and Ocean Engineers
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Details 詳細情報について
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- CRID
- 1390001205252896000
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- NII Article ID
- 10031178893
- 40019972451
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- NII Book ID
- AA12057769
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- ISSN
- 18811760
- 18803717
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed