船の操縦性に及ぼす横揺連成影響について  [in Japanese] Theoretical Study of Roll-Coupling Effect on Ship Maneuverabilty  [in Japanese]

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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

  • Journal of the Japan Society of Naval Architects and Ocean Engineers

    Journal of the Japan Society of Naval Architects and Ocean Engineers (17), 57-64, 2013-06-01

    The Japan Society of Naval Architects and Ocean Engineers

References:  10

Codes

  • NII Article ID (NAID)
    10031178893
  • NII NACSIS-CAT ID (NCID)
    AA12057769
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    18803717
  • NDL Article ID
    024837066
  • NDL Call No.
    Z74-E724
  • Data Source
    CJP  NDL  J-STAGE 
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