水下航行体操纵性指数与频率特性计算

CALCULATION OF MANEUVERING INDEX AND FREQUENCY CHARACTERISTIC FOR SUBMERSIBLE

本文根据水下航行体的侧-滚运动方程组，经拉普拉斯变换，求解了运动参数的传递函数；并用时域分析法与频率分析法，给出了四阶系统的操纵性指数K，T计算方法与频率特性的计算方法及其算例，以判别航行体的侧向、横滚方向运动的稳定性与机动性。

This paper solves side-roll equation of a submersible to give the transfer function of maneuvering motion parameters by means of Laplace'S transform. The method for steering index K， T and frequencycharacteristic of 4th－order system is given both in time domain and in frequency domain． Examples are given in this paper to show submersibles’ stability and maneuverability in side and roll motion．