Influence of temperature on mechanical stimulation threshold of typical liquid propellant  

温度对典型液体推进剂机械刺激阈值的影响

作　　者：JIANG Yuxuan JIN Shanpin JIANG Rongpei TANG Yulin WU Xingliang XU Feiyang XU Sen LIU Dabin 蒋宇轩;金山品;蒋榕培;汤玉林;吴星亮;徐飞扬;徐森;刘大斌(南京理工大学化工学院,江苏南京210094;贵州省大方县公安局,贵州毕节551600;北京航天试验技术研究所,北京100074;上海空间推进研究所,上海201109)

机构地区：[1]School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China [2]Dafang County Public Security Bureau of Guizhou Province, Bijie 551600, China [3]Beijing Institute of Aerospace Technology, Beijing 100074, China [4]Shanghai Space Propulsion Technology Research Institute, Shanghai 201109, China

出　　处：《Journal of Measurement Science and Instrumentation》2021年第2期154-159,共6页测试科学与仪器（英文版）

摘　　要：In order to study the variation of temperature to mechanical stimulation threshold of typical liquid propellants(ADN-based HAN-based and nitromethane),the critical impact energy and critical friction of three propellants under different temperatures were studied by using BAM fall hammer impact sensitivity tester and BAM friction sensitivity tester.Experiments show that under 80℃,60℃,40℃and 20℃,the critical impact energy of HAN-based are 20 J,15 J,15 J,15 J;the critical impact energy of nitromethane are 2 J,2 J,2 J,2 J;and the critical impact energy of ADN-based are<1 J,3 J,7.5 J,15 J.It reveals that HAN-based propellant has the highest critical impact energy,while nitromethane propellant has the lowest critical impact energy.ADN-based propellant has a notable decrease on its critical impact energy with temperature decreasing,indicating that temperature has a significant effect on impact sensitivity of ADN-based propellant.The critical friction of three samples are all higher than 360 N at 80℃,60℃,40℃and 20℃,which shows that the samples are not sensitive to friction,and temperature has no significant effect on the critical friction of three samples.The mechanical stimulations that may be encountered during the production and use of liquid propellants are analyzed,which takes certain working conditions and the temperature coupling effect into consideration,thereby providing support for safety management of liquid propellants during production and storage process.

关 键 词：liquid propellant hydroxylamine nitrate(HAN-based) NITROMETHANE ammonium dinitramide(ADN-based) impact sensitivity friction sensitivity TEMPERATURE 

分 类 号：V511[航空宇航科学与技术—航空宇航推进理论与工程]