Surface seakeeping experiments with a model of a submarine

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Proceedings title11th International Symposium on Practical Design of Ships and Other Floating Structures : 2010 PRADS 11th triennial
Conference11th Triennial : International Symposium on Practical Design of Ships and Other Floating Structures (PRADS 2010), 19-24 September 2010, Rio de Janeiro, Brazil
Subjectsubmarine; surface operation; seakeeping; benchmark data
AbstractModel experiments to investigate the surface performance of the Canadian Victoria Class submarine, under various environmental and operational conditions, were carried out at the Institute for Ocean Technology of the National Research Council, Canada. The task was initiated by the Canadian Navy in the wake of the HMCS Chicoutimi fi re-at-sea on the recommendation of a Naval Board of Inquiry. The program included systematic experiments to evaluate the seakeeping behaviour of the submarine in environmental and operational conditions selected to support development of guidelines for submarine operators. This included experiments in irregular waves and regular waves, along with roll decay tests. Environmental and operational variables covered of range of speeds, sea states and vessel headings. A free running, self-propelled, autopilot-driven, radio controlled model was designed and built to a scale of 1:14.96. The model, suitable for surface operations only, was outfi tted with active rudders, fi xed forward and after planes, main sail and keel. The model was designed so that the space between the outer body and the pressure hull was subjected to fl ooding and limited free fl ow. The external geometry of the model did not include acoustic tiles present on the fullscale boat. The model was instrumented to measure model motions, speed and propeller revolutions, and to monitor presence of water on deck in selected locations. Measurements of the roll responses were the principal targets of the project investigation. This paper presents a description of the model, its particulars, including the evolution of the design process. Experimental results including roll, pitch and heave responses in regular and irregular waves, and roll decay results are presented. All model information and results meet ITTC requirements for benchmark data.
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AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedYes
NPARC number19577550
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Record identifier2d20cdaa-10c9-47ad-9db4-c0e96c034116
Record created2012-03-29
Record modified2016-05-09
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