Maneuvering motions of a ship in calm water are studied through the concept of MMG model. Governing forces are defined by the use of available empirical formulae that require only main ship particulars as input variables. In order to validate the calculation tool, a full-scale sea experiment was carried out in Osaka Bay using a 17-m twin-screw passenger ferry. Test execution and data measurement were performed through the utilization of an autopilot control unit and satellite compass. The result of a straight running test confirms the acceptable accuracy in addressing the surge motion problem. Reasonable agreement between simulation and experiment is also confirmed for $5^{\circ }/5^{\circ }$ and ${10}^{\circ }/{10}^{\circ }$ zig-zag tests despite the strong environmental disturbance. The current model can generally represent the subject ship maneuvering motions and is promising for the application to other ship hulls.

通过MMG模型的概念研究了船舶在平静水中的操纵运动。控制力是通过使用可用的经验公式来定义的，这些经验公式仅要求主要船舶细节作为输入变量。为了验证该计算工具，在大阪湾使用17米双螺杆客渡进行了全面的海上试验。通过使用自动驾驶仪控制单元和卫星罗盘进行测试执行和数据测量。直线运行测试的结果证实了在解决喘振运动问题方面的可接受的精度。模拟和实验之间的合理协议也得到了确认$5^{\circ }/5^{\circ }$ 和 ${10}^{\circ }/{10}^{\circ }$尽管受到了强烈的环境干扰，但仍进行了之字形测试。当前模型通常可以代表主题的船舶操纵运动，并有望应用于其他船体。