Cooperative Research on New Ship Maneuvering models

本研究的目的是在基础试验和水动力学模型的基础上开发新的船舶操纵模型。(1)通过对两种不同尾型的实船模型在横摇和操纵运动中的船体压力测量，得到了操纵运动建模中的重要侧力分布。(2)CFD计算可以模拟侧向力和流场的行为。(3)横流模型可以得到横摇运动时全船模型所受的横向力。(4)通过引入面元法和螺旋桨简化模型，可以计算舵角试验中作用在船体、螺旋桨和舵上的相互作用力。(5)得到了敞水状态下舵机的运动特性，明确了舵臂与运动部件的相互作用。

The present research aimed to develop new ship maneuvering models based on fundamental experiments and hydrodynamical models.(1) Pressure measurements on ship hull were performed for two full ship models with different stern shapes in yawed and maneuvering motions.Then we obtained the distributions of lateral force, which is important in modeling of maneuvering motion.(2) CFD calculations could simulate the behaviors of lateral force and flow fields.(3) The cross-flow model could obtain the lateral force acting on full ship models in yawed motion.(4) By introducing a panel method (SQCM) and the simplified propeller model, we could calculate interaction forces acting on ship hull, propeller and rudder in the rudder angle test.(5) We obtained the characteristics of mariner rudder in open water and made clear the interaction between the horn and the movable part.