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原文传递 Simulation of Hydrodynamic Forces and Motions for a Freely Maneuvering Ship in a Seaway.

题名：	Simulation of Hydrodynamic Forces and Motions for a Freely Maneuvering Ship in a Seaway.
作者：	mctaggart, k.
关键词：	simulation, maneuverability, roll, ocean waves, marine propulsion, object oriented programming, naval vessels(combatant), seakeeping, yaw, models, resistance, canada
摘要：	ShipMo3D is DRDC Atlantic's object-oriented library for modelling ship motions in waves. Previous ShipMo3D development considered ships travelling with nominally steady speed and heading. This report describes the extension of the ShipMo3D library to model motions of freely maneuvering ships. New ShipMo3D force components arise from hull maneuvering, resistance, propulsion, and rudder-propeller interaction. Comparisons of turning circle predictions with full-scale trials data for the tanker Esso Osaka give encouraging results. Comparisons of predictions with motions of a steered warship model in waves give very good results. Excellent agreement between predictions for a freely maneuvering ship and for a ship with nominally steady speed and heading indicates that the extension of ShipMo3D to freely maneuvering ships has been correctly implemented. It is recommended that future work further investigate prediction of hull maneuvering forces. / NOTE: Technical memorandum. / Supplementary Notes: Text in English; abstract in French and English. / Availability Note: Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA.
总页数：	u0714；74p
报告类型：	科技报告