Motion Control and Simulation of a Towing Tank system in an Experimental Water Pool
Min Xiao

Abstract
The underwater towed system is extensively used for various oceanic applications and military tasks etc., it is an important problem in the design and application of towed system to study its motion characteristics and control problems. It has very important meanings in the design and use of towed systematic to hold the law and characteristic of the systematic movement accurately. Trailer of towing tank is the basic equipment which is used for performance test of ship, and which role is to drag ship model or others for uniform motion in the tank, to measure the relevant performance parameters of ship after speed stable, to prediction and validation of the merits or inferiors of hull form design. As trailers uniform model accuracy directly affects the velocity and the accuracy of test results, which must be equipped with good speed control system which has high precision and immunity in order to ensure tow-speed precision movement. In this paper, through the establishment of a rigorous theoretical model, the object study is systematically analyzed and simulated by numerical simulation. The whole process of the design and simulation of the trailer movement control system is completed. The study of this paper lays the foundation for the development of successful underwater towing system for laboratory model test and offshorefield prototype test.

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