图线分析法——论证与设计钢珠离心自炸机构的一种方法

Method of Graphical Analysis——a method to verify and design a selfdestruction device with centrifugal steel balls

本文提出了一种利用中小型电子计算机论证选择离心自炸机构自炸角速度ωt0*。及设计确定钢珠离心自炸机构基本结构参量的方法。这种方法是首先计算外弹道和弹丸沿弹道的旋转角速度ω,然后输出旋转角速度对于时间的曲线ω-t,通过对不同射角下ω-t曲线族的分析,选择战术要求的ωt0*。对不同的钢珠数目i,不同的钢珠直径d,可以计算出自炸角速度ωt0与倾角α（参见图2）的关系曲线,输出这个曲线族,根据战术要求选定的ωt0*。即可分析确定合适的结构参量i,d及α。这种方法便于看清各种不同射角θ0时自炸炸点分布的情况及自炸炸点位置与最小射角θ0min的关系。从而可以解决这种计算量大、要求考虑全面而因素又不太多的优化设计问题。

This paper presents a method for employing electronic computer of small and medium size to compute and select the angular velocity ω_(t0) of self-destruction device, and to determine the principal structural parameters of the device. In this method, firstly we compute the exterior trajectory and the rotational angular velocities of the projectiles along the trajectory, and then we obtain the curve ω-t of angular velocities vs. time of flight. Through the analysis of ω-t curve family under various angles of fire, we select a ω_(t0)~* which can meet the tactical requirements. For various numbers and diameters of the steel balls, we can compute the curve of angular velocity ω_(t0) of self-destruction vs. oblique angle α of the bevel shaped edge of sleeve (Fig. 2) and we get a group of curves. Based on the ω_(t0)~* selected from the tactical requirememts, we can determine suitable structural parameters i, d and α. With this method we can easily reveal the conditions of the dispersion of the burst points and the relationship between the positions of burst points of self-destruction and the minimum angle of fire θ_(0min) under various angles of fire θ_0 so as to solve the problem of optimum design which needs large amount of calculations and requires a few but very comprehensive influencing factors.