Research On Control And Simulation Of Controlled Passively Anti-rolling Tank

The anti — rolling tank is one of the widely used stabilizers in the world, and it fits for ships working at zero speed or low speed, whose characters are simple structure, low cost and easy to maintain. The anti-rolling tanks have three types including passive anti- rolling, controlled passively anti-rolling tank and active anti- rolling tank.The controlled passively anti — rolling tank has high performance, and it can adjust the water oscillation period through the valves in the upper of side tank in order to adapt the roll period. Thus the controlled passively anti-rolling has favorable effect in the any states. It has been proved that this kind of tank is applicable of multifold boats, which not only reduces the roll angle and the heel angle, but also improves the efficient and fall the transport cost. The controlled passively anti-rolling tank can elevate the comfort and safe of the boats.The paper is based on the item the anti-rolling tank test setup among the school"211 "key construction projects. The control method of the controlled passively anti-rolling tank is mainly investigated, and test about the controlled passively anti-rolling tank is reserched.The research achievement on the academic research and model test of anti-rolling tank at home and abroad is roughly described first by a lot of documents.And the operational principle of passive anti- rolling tank and controlled passively anti-rolling tank is described. The main subjects are drafted.Secondly , according to Lagrange dynamics equation of motion, a mathematical model of the ship-controlled passively anti-rolling tank system is developed. We take advantage of impulse response method to solve themathematical model. Then the valve is controlled making use of roll angle and signal change of the liquid location of the side cabin ,thus the emulational test of the controlled passively anti-rolling is given .The result indicates that this control method is effective.Thirdly, the control system of the controlled passively anti-rolling is...