动爆冲击波传播特性实验研究  

Experimental Study on Propagation Characteristics of Dynamic Blast Wave

作　　者：姬建荣[1] 苏健军[1] 陈君[1] 陈皓[1] 贾养育 JI Jianrong;SU Jianjun;CHEN Jun;CHEN Hao;JIA Yangyu(Xi’an Modern Chemistry Research Institute,Xi’an 710065,China;Xi’an Modern Control Technology Research Institute,Xi’an 710065,China)

机构地区：[1]西安近代化学研究所,西安710065 [2]西安现代控制技术研究所,西安710065

出　　处：《兵器装备工程学报》2019年第12期20-24,共5页Journal of Ordnance Equipment Engineering

摘　　要：设计进行控炸点实验,由激光高速摄影获取了静爆与动爆冲击波初始变化图像,利用传感器测得冲击波压力。结果表明:沿弹药运动速度正向,动爆冲击波速度大于静爆,冲击波超压增强,最大增压系数为2. 5;沿弹药运动速度负向,动爆冲击波速度小于静爆,冲击波超压减弱,平均减压系数为0. 57;沿90°方向冲击波超压平均减压系数为0.70;动爆条件下马赫反射三波点出现时间正向早于负向,而静爆三波点时间介于二者之间。A controlled explosion point experiment was conducted,the initial images of static detonation and dynamic detonation shock wave were obtained by laser high-speed photography,and the pressure of shock wave was measured by sensors.The results showed that the velocity of dynamic detonation shock wave is higher than that of static detonation along the positive direction of the ammunition movement,the overpressure of shock wave increased,and the maximum pressurization factor is 2.5.Along the negative direction of ammunition movement,the velocity of dynamic detonation shock wave is lower than that of static detonation,the overpressure of shock wave is weakened,and the average decompression coefficient is 0.57.The average decompression coefficient of shock wave overpressure in the direction of 90°is 0.70.In dynamic detonation condition,the time of Mach reflection triple point is earlier than negative one,while the time of static detonation three wave points is between the two.

关 键 词：爆炸力学 运动装药 冲击波 三波点 

分 类 号：O384[理学—流体力学] TJ55[理学—力学]