摘要
为了优选出30 mm随行装药结构的点火延迟时间、随行药燃速和随行药火药力三者的优化组合,保证在最大膛压不超出指标的条件下获得较高的弹丸初速。采用固体随行装药零维内弹道模型编写程序求数值解,在此基础上采用正交试验设计法设计随行装药结构的优化试验方案,利用正交表安排数值模拟试验,运用综合平衡法分析试验结果,得出优选方案并用数值模拟试验验证。优选方案为:点火延迟时间1.766 ms,随行药燃速系数2.67×10-8m/(s.pan),随行药火药力1 050 MPa.dm3/kg。验证结果说明用正交法安排数值模拟试验可以优选出较好的随行装药结构参数。
The purpose of this study is to select the optimization results of delay time,burning rate,and the travel charge impetus of 30 mm traveling charge structure in order to have a higher muzzle velocity of projectile under the condition of maximum bore pressure. According to the adoptive traveling charge scheme in 30 mm cannon,a zero dimension interior ballistic model of solid traveling charge was used to get a program for numerical solution. The travel charge optimization test scheme was designed by orthogonal experimentation. The orthogonal layout was used to arrange tests,and then the synthesized balance method was adopted to analyze the data of numerical simulation. The optimized ignition delay time,burning rate and the travel charge impetus were obtained and validated with numerical simulation tests. The optimal solution is that the delay time is 1. 766 ms,the burning rate is 2. 67 × 10^-8m /（ s. pa^n）,and the travel charge impetus is 1 050 MPa. dm3 kg. Verification results show that the method which optimizes parameter by using numerical simulation tests arranged by orthogonal is feasible.
出处
《四川兵工学报》
CAS
2015年第1期60-63,共4页
Journal of Sichuan Ordnance
基金
火炸药研究基金(404060202)
关键词
随行装药
数值模拟
正交试验
traveling charge
numerical simulation
orthogonal design
