某单兵火箭弹作用时间自适应修正方法

Acting time adaptive correcting method of an individual rocket

针对某单兵火箭弹炸点散布大的问题,提出一种测速后对作用时间自适应修正的方法。通过建立弹丸弹道模型方程,利用MATLAB软件及四阶龙格-库塔算法对弹道方程进行解算,就弹道解算结果与修正方法计算结果进行比较,得出修正公式中的Δt可以忽略的结论。最后通过靶场回收试验和空炸试验进行验证,试验表明该自适应修正方法有效可行,将火箭弹在400 m位置处空炸的炸点精度由原来的-14.3～+12.2 m提高到现在的-2.9～+3.4 m。该研究成果可为单兵火箭弹高精度定时引信设计提供参考。

Aiming at the large dispersion of the burst point of an individual rocket, this paper puts forward an acting time adaptive correcting method, which makes the correction after measuring the velocity. Based on establishing the projectile ballistic model equation,the Matlab software and the 4 order Runge-Kutta algorithm are used to solve the ballistic equation. The calculating results from the trajectory and the correction method are compared, and the conclu- sion is drawn that the At in the modified formula could be ignored. The range recovery and air burst experiments were performed, and the results prove that the adaptive correcting method is effective and feasible, the burst point precision of the rocket is improved from - 14.3 - ＋ 12.2 m to - 2.9 - ＋ 3.4 m after the correction at the distance of 400 m. The research result provides a reference for the design of high precision timing fuze of individual rockets.