基于实船与模型试验的船舶操纵性相关性分析

操纵性相关性分析一直以来是受到国内外学者的关注,但是由于其复杂性,至今未能很好地解决.目前,模型试验的数据往往是直接预报到实船的操纵性能,这有可能导致很大的偏差,影响船舶的航行安全.本文针对育鲲轮,进行了实船试验与模型试验的相关性分析.首先进行了实船回转试验和z形试验,测试了该船的操纵性.通过试验数据分析获得了纵距、横距、战术直径、回转直径、超越角等操纵性特征参数,试验过程中也进行了船舶姿态,如纵、横摇以及主机功率的测试.通过实船回转试验发现,主机功率比直航时增大了大约15%,这给船舶设计提供了参考.然后,采用6m长左右的模型也进行了相同试验的测试,电机转速与实船主机转速相似,且一直保持不变.最后,分析比较了模型所测数据与实船数据,发现特征参数误差基本都在10%以内.说明模型长度、螺旋桨的模拟等模型试验方案基本可行.

Correlation Analysis of Maneuverability Based on Model Tests and Sea Trials of a Ship

In this article, the compring reseach on ship maneuvering between full scale ship and the model was done forthe YUKUN training ship,and related papers are very few in the literatures.The sea trial such as speed tests, turning tests andzigzag tests was carried out and the trajectory, roll, pitch, RPM and the power of the main engine were obtained through theDGPS sensor, the attitude sensor and the stain gauge installed at the end of the shaft before the propeller. For the full scaleship, generally speaking, the detailed data like this is very difficult to obtain and precious. Based on the data of both sea trialand model test, the trajectory, roll, pitch, RPM and the power of the main engine were compared. The model correction suchas the advance, the tactical diameter and the overshoot angle was finished for YUNKUN training ship. Some suggestionswere made to further develop the study such as a series of model, model size, the control of the RPM.