针对水下航行器操纵运动方程，引入水动力系数敏感性指数的概念。

Aiming at the motion equation of underwater vehicle, a hydrodynamic coefficient sensitivity index is introduced.

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在阐述了现行《船舶操纵》教材中关于船舶操纵性指数(K, T)计算方法的基础之上，提出运用曲线拟合的分析方法。

Based on expatiation upon the k, t indices calculating method in lots of current maneuvering ship text book, this article presents a new analysing method with curve simulating.

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通过建立水流和船舶运动基本方程，与实船静水操纵性能试验比较，船舶操纵性指数与实测基本一致。

In this paper, the equations of ship and current motion model are established. The calculation of the ship manipulative capability parameter is consistent with the measured in static stream.

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