実海域再現水槽

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The actual Sea Model Basin is the world's most advanced indoor facility for the simulation of actual sea environment such as wind and waves. This article is the exposition of this new facility constructed in National Maritime Research Institute and completed at the end of August 2010. The length, width and depth of the basin are 80m, 40m and 4.5m, respectively. Total 382 segmented flap-type absorbing wave makers are installed on all periphery of the basin. By numerical control of individual segments, realistic wave field of the actual seas can be reproduced in the basin. For the model test, three degree of freedom towing carriage is available. The main carriage, which rail span is 41m, travels up to 3.5m/s, and the sub-carriage installed below the main-carriage runs up to 3.0m/s. The turntable is equipped on the sub-carriage. In addition to multifunctional towing capability, auto-tracking function is available for free running tests in waves. For wind generation, removable blowers are available. Fluctuating wind up to 10m/s can be generated. The control system of the basin has two layers of the basic system. The lower layer is the local control system of the wave makers, towing carriages and the wind generators. The upper layer is the central control system of the lower layers. Using the central control system, all functions of this basin are controlled synchronously. As a result, accuracy and reproducibility are achieved in very high level. Specifications, dimensions and functions of the actual sea model basin are explained in this paper in detail.
2011-03-31

実海域再現水槽

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