摘要
由于高速旋转弹弹道方程本身的复杂性,加上修正力的大小、方向和作用点将影响弹丸的旋转运动特性,修正时可能出现弹丸绕质心剧烈运动,使得通过解算弹道确定修正力比较困难。为此提出基于泰勒公式的弹道修正引信实际弹道快速计算模型,输入量未弹载测量系统实时测量弹丸在弹道坐标系中的三个分速度及转速,同时为确保修正力计算的准确性,提出将弹道降弧段分段,分别计算各段所需的修正力。通过分段计算鸭舵机构修正力及其误差分析说明本方法可行,并且计算公式均为解析式,不需迭代计算微分方程,计算速度高。
The method of separated trajectory correction of fuze for spin projectile is researched.Computing the error of projectile trajectory is very important to projectile trajectory correcting while the projectile is flying.Based on the trajectory being separated into several parts in the drop part of trajectory,a quickly computing model of trajectory according to Taylor expression is given,then the correction force is computed quickly.The computing method of correction force and time of the canard correction mechanism is discussed,and a feasible correction scheme of correction fuze for spin projectiles is given.
出处
《探测与控制学报》
CSCD
北大核心
2008年第5期30-33,37,共5页
Journal of Detection & Control
关键词
旋转弹
弹道修正
修正力
鸭舵
spin projectile
trajectory correction
trajectory correction force
canard
