可控环量船体的受力分析及对船舶操纵性的影响

本文在对—拖轮可控环量船体约束船模试验结果的基础上进行了水动力分析，并与船体在不喷流而仅操舵情况下的受力进行了对比．结果表明：在低航速下，喷流产生的转船力矩要大于操舵产生的转船力矩；在高航速下．喷流产生的转船力矩亦可满足船舶的操纵性要求．因此，作为一种新的船舶操纵方式，将环量控制技术直接用于船舶的操纵是可能的，可大大改善船舶在低航速情况下的操纵性．由于喷流装置结构简单，无可动部件，并且基本不改变船体形状，故为实船应用提供了较为乐观的前景．

ANALYSIS OF FORCES ACTING ON CIRCULATION CONTROLABLE HULL AND THE INFLUENCE ON SHIP MANEUVERABILITY

In this paper, the forces acting on the Circulation Controllable Hull (CCH) are analysed and compared with the forces acting on the hull with rudders on the basis of experimental results of a tug model with CCH. The test results show that at low speed the CCH may produce larger turning moment than that generated by the hull with rudders, while at high speed the CCH may also produce enough turning moment to meet the requirernents of the ship maneuverability. As a new method of shiri maneuvering, it may greatly irnprove the ship maneuverability, especially at low speeds. Since CCH is simple in structure and has no movable-parts apd it does not change the shape of the hull, the application of CCH to real ships is feasible.