改性双基推进剂机械感度的预测方法
Mechanical Sensitivity Prediction Method of Modified Double Base Propellants
刘润青 1张杰凡 2刘炫棽 1武晨书 1张家瑞 1王悦颖 1张云 3赵凤起 4裴庆 4徐司雨 4曹卫国1
作者信息
- 1. 中北大学环境与安全工程学院,山西太原 030051
- 2. 湖北航天化学技术研究所航天化学动力技术重点实验室,湖北襄阳 441003
- 3. 中北大学环境与安全工程学院,山西太原 030051;西安近代化学研究所含能材料全国重点实验室,陕西西安 710065
- 4. 西安近代化学研究所含能材料全国重点实验室,陕西西安 710065
- 折叠
摘要
为了对改性双基推进剂的机械感度进行预测,通过BAM撞击装置和摩擦感度仪对其进行试验,得到了其临界撞击能量E和临界摩擦载荷Fs;基于单质炸药氧平衡指数与撞击感度的相关性探究了改性双基推进剂氧平衡指数与机械感度之间的关系,并将改性双基推进剂看作硝基含能化合物,选取氧平衡指数、N—NO2、O—NO2、—COOR和苯环作为分子结构描述符,进行多元线性回归建立机械感度预测模型并计算了改性双基推进剂的E和Fs,随机选取检验样本对模型进行检验.结果表明,氧平衡指数OB100与E和Fs均呈现较好的线性关系,可以对改性双基推进剂的机械感度进行判断;基于分子结构描述符建立的E和Fs预测模型具有较高的相关系数,分别为0.963和0.983;同时其检验样本的均方根误差(RMSE)与平均绝对百分误差(MAPE)分别为0.40J和10.27％与8.33N 和 10.83％.
Abstract
To predict the mechanical sensitivity of modified double base propellants,the critical impact energy E and the criti-cal friction load Fs were obtained by using the BAM impact device and friction sensitivity meter.Based on the correlation be-tween the oxygen balance index of the single-compound explosive and the impact sensitivity,the relationship between the oxy-gen balance index and the mechanical sensitivity of modified double base propellants was investigated.The oxygen balance in-dex,N—NO2,O—NO2,—COOR and benzene ring were selected as the molecular structure descriptors,and perform multi-ple linear regression to establish a mechanical sensitivity prediction model and calculate the E and Fs of modified double base propellants.The randomly selected test samples were examined to test the model.The results show that the oxygen balance in-dex OB100 exhibits a good linear relationship with both E and Fs,which can be used to judge the mechanical sensitivity of the modified double base propellants.The E and Fs prediction models based on molecular structure descriptors have high correla-tion coefficients of 0.963 and 0.983,respectively;Meanwhile,the root mean square error(RMSE)versus the mean absolute percent error(MAPE)of their test samples are 0.40J and 10.27％versus 8.33N and 10.83％,respectively.
关键词
改性双基推进剂/机械感度/氧平衡指数/描述符/线性回归Key words
modified double-base propellant/mechanical sensitivity/oxygen balance index/descriptors/linear regression引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据