射程修正引信阻力器展开特性分析

射程修正引信利用阻力器增加弹丸阻力,从而改变弹道,提高打击精度。首先分析了阻力片在展开过程中的受力情况,然后在不同的条件下,采用Runge-Kutta方法分别计算了阻力片完全展开所用的时间及达到完全展开时的瞬间运动速度。计算得到的展开时间与转台试验高速摄影所得结果相符。对阻力片完全展开所耗时间进行仿真,结果表明阻力片完全展开所耗时间延迟并没有对整个射程修正精度造成影响。

Drag Correction Mechanism of Course Correcting Fuze Spread Analysis

Using drag correction mechanism for increasing resistance of projectile,course correcting fuze can change trajectory and enhance the precision of striking.Firstly,the force of drag ring among the process of spreading is analyzed,then Runge-Kutta method utilizes to calculate the spreading time of drag ring and the instantaneous speed when drag ring completely spreads.And the result of calculating are identical with the outcome of revolving platform experiment at high spin shooting.The time of drag correction...