Marine Dynamics Research Group

Summary Marine dynamics group are carrying out wide-ranging researches on dynamics of ships and other movable bodies in the ocean. Among them are researches on stability, seakeeping quality and manoeuvrability of ships. Developments of estimation method of manoeuvrability of ships including POD driven ships, advanced sail-assisted ships, technology of underwater robot system and researches on dynamics of planing boats are also included. Depending on various research objectives, broad range of experiments are within our field of activities such as free running model test at the 80m square tank, captive model test at the ocean engineering basin and the towing tanks, wind tunnel test for measuring wind forces and flow visualization, measurement of dynamics of underwater robot system in the deep-sea basin and, moreover, full scale trial at actual seas for large ships and small planing boats. We do hope to contribute to safe and advanced technology at sea through outcome of our research works, e.g., investigating into causes of marine accidents, researches for the international and domestic rules on ship stability, development of the integrated system for estimating ship manoeuvrability, proposal of estimation method for wind forces and wave drift forces, highly-qualified experimental techniques such as motion measurement using the kinematic GPS. Research Research on advanced methods for the reproduction and analysis of marine accidents utilizing the actual sea model basin and the marine simulator (FY2011-2015) Research on the estimate method of ship characteristics at the initial stage of analysis of marine accidents (FY2011-2012) Research on the innovative technology of tank test for designing energy-saving ships (FY2011-2015) Research on the directional wave field and highly non-linear ship motions (Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research; FY2011-2014) Research on the novel self-propulsion test to evaluate the ship performances in actual seas (Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research; FY2011-2015) Development of the ‘ECO’ navigation supporting system (Japan Railway Construction, Transport and Technology Agency (JRTT); FY2010-2012) (Previous researches) Gallery Large roll motion of a fast ferry in quartering seas (Movie) A model ship in waves and character drawings by wave at the Actual Sea Model Basin (Movie) Measurement of Hydrodynamic Forces and Moments acting on the Submersible Surface Ship At-sea experiment of a small planing boat Wind tunnel test for measuring interaction effect of hybrid sails for advanced sail-assisted ships Tank test for investigating into underwater fin effect for advanced sail-assisted ships Performance test of a vehicle prototype of a compact deep-sea monitoring robot system (Movie) Descending motion of a launcher model of a compact deep-sea monitoring robot system (Movie) Observation of oblique angle effect on wave field Drifting test of a tanker ship model in waves Manoeuvrability test of a tanker ship model Wind flow visualization around above water structure of a ship in wind tunnel Flow field measurement around a model ship in manoeuvring motion using Pitot probe Positioning of a free-running model ship using GPS Members UENO, Michio TAKIMOTO, Tadanori KITAGAWA, Yasushi Facilities Actual Sea Model Basin Wave Tank Ocean Engineering Tank Wind Tunnel with Water Channel Deep-Sea Basin 400m Test Tank 150m Test Tank Contact Marine Dynamis Research Group Fluids Engineering & Ship Performance Evaluation Department National maritime research institute 6-38-1 Shinkawa, Mitaka, Tokyo 181-0004 JAPAN Phone: 81 422 41 3060 Fax: 81 422 41 3053 E-mail: ueno@nmri.go.jp

〈Updated on July 29, 2011〉

[ BACK ] [ NMRI HOME ]