摘要
通过建立动态能量采集系统对含能射流的冲击释能特性进行了研究,得到了不同冲击条件下含能射流撞击靶板产生的超压-时间曲线,确定了反应产物成分。结果表明:随着受到的冲击能量增加,含能射流形成的超压峰值与能量释放呈递增趋势,同时存在一个冲击能量上限使得射流内含能材料的化学反应达到饱和;释能机制为含能材料受冲击加载后发生氧化反应和铝热反应并释放能量,形成超压。
The impact energy release characteristics of an energetic jet was analysed based on the building of a dynamic energy acquisition system.The overpressure versus time curves produced by the energetic jet impinging plate were obtained under different impact conditions,and the composition of reaction products was determined.The results show that with the increase of the impact energy,the overpressure peak and energy release formed by the jet both show a tendency to increase progressively,and there is an upper limit of impact energy which can make the energetic material reach the staurated state of chemical reaction.The average amount of heat that the jet can release is 65.4 kJ containing 4.4 g,which is enough to achieve damage.
作者
杜烨
李强
DU Ye;LI Qiang(Research Center of Projectiles and Rockets Simulation,North University of China,Taiyuan 030051,China;Unit 96786 of the PLA,Beijing 102202,China)
出处
《振动与冲击》
EI
CSCD
北大核心
2018年第18期266-270,共5页
Journal of Vibration and Shock
基金
中北大学重点实验室开放研究基金(DXMBJJ2018-03)。
关键词
含能射流
冲击释能
超压
冲击能量
反应产物
energetic jet
impact energy release
overpressure
impact energy
reaction product
