地球自转对弹道导弹被动段落点的影响  

Influence of Earth Rotation on Landing for Unpowered Flight Phase Trajectory of Ballistic Missile

作　　者：苏浩[1] 

机构地区：[1]江苏自动化研究所,江苏连云港222006

出　　处：《四川兵工学报》2015年第3期156-160,164,共6页Journal of Sichuan Ordnance

摘　　要：地球自转是影响中、远程弹道导弹被动段的重要因素,通过基于正常地球椭球体的简化被动段运动微分方程及射程偏差、横向偏差计算公式,分析了由地球自转而产生的柯氏加速度、牵连加速度对被动段落点的影响,特别是针对典型射击情况,从动力学机理上深入探讨了导弹向东射击射程增加,向西射击射程减小的原因。仿真计算结果验证了分析方法的正确性,同时也表明地球自转对弹道导弹被动段落点有相当大的影响。Earth rotation is an important factor which affects the unpowered phase of the intermediate-range and long-range ballistic missile. According to the simplified differential equation of the unpowered phase of the ballistic missile based on the normal earth ellipsoid,the range error and the horizontal error,this paper analyzed the influence of the Cauchy acceleration and the entangling acceleration generated by the earth rotation on the fall point,especially for typical shooting conditions. It conducted a research on the reason for the range increase along the eastward direction and the range reduction along the westward direction. The simulation result shows that the method introduced by this paper is correct and the earth rotation has an apparent impact on the fall point of the ballistic missile.

关 键 词：弹道导弹 被动段 地球自转 射程偏差 横向偏差 

分 类 号：TJ761.3[兵器科学与技术—武器系统与运用工程]