The uncertainty propagation analysis of the projectile-barrel coupling problem

作     者：Lin-fang Qian Guang-song Chen 

作者机构：Nanjing University of Science & Technology 200 Xiaolingwei Nanjing Jiangsu 210094 China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2017年第13卷第4期

页      面：229-233页

核心收录：

学科分类：08[工学] 082603[工学-火炮、自动武器与弹药工程] 0826[工学-兵器科学与技术] 

主　　题：Uncertainty propagation Projectile-barrel coupling Bootstrap Maximum entropy Interval 

摘      要：Based on the model which couples the projectile and gun barrel during an interior ballistic cycle,the uncertainty propagation analysis of the model is presented caused by the uncertainty of the input *** Bootstrap method is employed to calculate the statistical moments(*** mean,variance,skewness coefficient and kurtosis coefficient)of the parameters of the ***,the maximum entropy method is used to estimate the probability density function(PDF)and the cumulative density function(CDF),the interval of the parameters of the projectile are also ***,the results obtained are compared to the results calculated by Monte Carlo(MC)method to verify the effectiveness of the presented ***,the rule and the uncertainty propagation model of the projectile-barrel coupling system are given with the variation of the uncertainties of the input parameters.