横向弹道修正的一种快速计算方法

针对阻力环叠加减旋翼片的二维弹道修正技术方案，基于外弹道理论，建立其二维修正的飞行弹道模型，推导了横向弹道修正过程对应的近似偏流公式和修正量计算方法。进行横向弹道修正能力及飞行稳定性分析，并通过炮射试验验证该计算方法的准确性和有效性，计算结果与6自由 度弹道模型计算结果及炮射试验结果基本一致，最大误差不超过40 m. 研究结果对二维弹道修正技术的工程应用具有参考价值。

An Approximated Calculation Method for Lateral Trajectory Correction

For the technical scheme of the two-dimensional trajectory correction projectiles (TDTCPs) with drag brake and despining blade, the mathematical model of two dimensional trajectory corrections is discussed based on the theory of exterior ballistics. An approximate formula for predicting the ballistic drift and trajectory correction quantity is deduced with respect to the process of lateral trajectory correction. The capability of lateral trajectory correction and the flight stability of TDTCP are also analyzed. By comparing with the results of flight test, the accuracy and effectiveness of this approximate calculation method are verified. The result of the approximate method is in accordance with those of 6DOF trajectory model and firing test, and the maximum error is no more than 40 m. All the work is valuable for further research.