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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。
Firstly, the flight dynamics model of drag-target system is simplified, and the basic principle of digital simulation of drag-target system dynamics is described. Secondly, the model is linearized, the relationship between the lift and the wing angle, the relationship between the change of the tension and the height and the damping coefficient corresponding to the vertical velocity are determined, and then the relationship between the vertical height, the velocity and the rudder angle is established The linear differential equation was obtained, and the vertical transfer function of towing target was obtained. Finally, under different operating conditions, such as different sea conditions, different acceleration deviations and different height deviations, the whole digital simulation of the drag target system is carried out. The research results are helpful to the design and application of drag target system.