内弹道循环的随机模拟

本文根据大量的靶场射击数据,用随机模拟的方法,即Monte—Carlo方法计算最大压力和初速的随机分布及其标准离差和均值。利用计算机贮存的标准函数产生—组伪随机数,并将其变换为正态分布,由正态分布所给出的一组随机的装填参量.输入内弹道基本方程组求解,从而可得到最大压力和初速的随机分布值。和靶场的实验结果相比,有较好的一致性。

Random Simulation of Interior Ballistic Cycle

Based on a great deal of data measured in proving ground, this paper makes use of random simulation methord, i. e.Monte-carlo methord, to calculate the random distribution of the maximumpressure and muzzle velocity as well as its standard deviation and meanvalue, which can be transformed into the normal distribution bymeans of a group of quasi-random numbers produced by standardfunction stored in computer. The set of basic interior ballistic equationswith a group of random loading parameters given by the normal distri-bution may be used to solve the random distribution of the maximumpressure and muzzle velocity. The better agreement is given by comparisonwith the experiment al result in proving ground.