拖靶系统飞行动力学数字仿真研究

首先对拖靶系统飞行动力学模型进行了简化，阐述了拖靶系统飞行动力学数字仿真基本原理。其次对模型进行了线性化处理，确定了升力与舵翼角的关系、张力变化与高度变化的关系以及垂向速度对应的阻尼系数，进而建立了垂向高度、速度以及舵翼角之间关系的线性微分方程，求得了拖靶垂向运动传递函数。最后在不同海情、不同加速度偏差以及不同高度偏差等使用条件下，对拖靶系统的工作过程进行了全数字仿真研究，其研究结果有助于拖靶系统的设计和应用研究。

Research on Digital Simulation in Flight Dynamics of Towed Target System

Firstly, the model of flight dynamics of towed target system is simplified, and the fundamental principle of digital simulation in flight dynamics of towed target system is elaborated. Secondly, a linear processing is taken in model for defining the relation between lift force and rudder wing angle, changes in both tension and height, as well as the corresponding damping factor to vertical speed. Thereby, the linear differential equations are established and the transfer function in vertical motion of towed target with vertical height, speed and rudder wing angle is solved. Finally, full digital simulation study is taken in the working procedure of towed target system under different oceanic condition, different deviation of acceleration and height. The research result will contribute to the design and application study of towed target system.