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

作　　者：刘润青 张杰凡 刘炫棽 武晨书 张家瑞 王悦颖 张云 赵凤起[3] 裴庆[3] 徐司雨[3] 曹卫国 LIU Run-qing;ZHANG Jie-fan;LIU Xuan-shen;WU Chen-shu;ZHANG Jia-rui;WANG Yue-ying;ZHANG Yun;ZHAO Feng-qi;PEI Qing;XU Si-yu;CAO Wei-guo(School of Environment and Safety Engineering,North University of China,Taiyuan 030051,China;Science and Technology on Aerospace Chemical Power Laboratory,Hubei Institute of Aerospace Chemotechnology,Xiangyang Hubei 441003,China;National Key Laboratory of Energetic Materials,Xi′an Modern Chemistry Research Institute,Xi′an 710065,China)

机构地区：[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]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

出　　处：《火炸药学报》2024年第11期1039-1045,I0004,共8页Chinese Journal of Explosives & Propellants

基　　金：国家自然科学基金(No.12372340);含能材料全国重点实验室基金(No.6142603052204)。

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F_(s);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—NO_(2)、O—NO_(2)、—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F_(s),随机选取检验样本对模型进行检验。结果表明,氧平衡指数OB_(100)与E和F_(s)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F_(s)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%。To predict the mechanical sensitivity of modified double base propellants,the critical impact energy E and the critical friction load F_(s) were obtained by using the BAM impact device and friction sensitivity meter.Based on the correlation between the oxygen balance index of the single-compound explosive and the impact sensitivity,the relationship between the oxygen balance index and the mechanical sensitivity of modified double base propellants was investigated.The oxygen balance index,N—NO_(2),O—NO_(2),—COOR and benzene ring were selected as the molecular structure descriptors,and perform multiple linear regression to establish a mechanical sensitivity prediction model and calculate the E and F_(s) of modified double base propellants.The randomly selected test samples were examined to test the model.The results show that the oxygen balance index OB_(100) exhibits a good linear relationship with both E and F_(s),which can be used to judge the mechanical sensitivity of the modified double base propellants.The E and F_(s) prediction models based on molecular structure descriptors have high correlation 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 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] TQ560.71[化学工程—炸药化工]