微装药驱动飞片速度及形态研究  

Study on Velocity and Shape of Micro-Charge-Driven Flyer

作　　者：穆云飞 沈瑞琪[1,2,3] 张伟 叶迎华[1,2,3] MU Yun-fei;SHEN Rui-qi;ZHANG Wei;YE Ying-hua(School of Chemistry and Chemical Engineering,Nanjing University of Science and Technology,Nanjing,210094;Micro-Nano Energetic Devices Key Laboratory of MIIT,Nanjing,210094;Institute of Space Propulsion,Nanjing University of Science and Technology,Nanjing,210094)

机构地区：[1]南京理工大学化学与化工学院,江苏南京210094 [2]微纳含能器件工业和信息化部重点实验室,江苏南京210094 [3]南京理工大学空间推进技术研究所,江苏南京210094

出　　处：《火工品》2022年第6期9-13,共5页Initiators & Pyrotechnics

摘　　要：飞片速度和形态对其冲击起爆性能有重要影响,采用光子多普勒干涉激光测试技术(PDV)和数值模拟方法,研究了加速膛直径、飞片厚度和飞片材料对叠氮化铅微装药驱动飞片速度和形态的影响规律。试验结果表明:飞片厚度一定时,存在一个最优加速膛直径(1.4mm)使飞片的稳定速度最大(2050m·s^(-1));最优加速膛直径下,飞片的稳定速度随飞片厚度增加而降低;飞片厚度相同时,铝飞片的稳定速度最大,钛飞片其次,不锈钢飞片最低。仿真结果表明,飞片材料为不锈钢时,30μm厚的飞片平整度最好;飞片厚度相同时,钛飞片的平整度和完整性最好。The velocity and shape of flyer have an important influence on its shock initiation performance.The effects of acceleration barrel diameter,flyer thickness and flyer material on the velocity and shape of lead azide micro-charge-driven flyer were studied by Photo Doppler velocimetry(PDV)and numerical simulation.The test results show that when the thickness of the flyer is constant,there is an optimal acceleration barrel diameter(1.4mm)to maximize the stable velocity of the flyer(2050m·s^(-1)).Under the condition of optimum accelerating barrel diameter,the steady velocity of flyer decreases with the increase of flyer thickness;At the same flyer thickness,the stable velocity of aluminum flyer is the highest,followed by titanium flyer,and the stable velocity of the stainless steel flyer is the lowest.The simulation results show that when the flyer material is stainless steel,the flyer with thickness of 30μm has the best flattest.At the same thickness,the titanium flyer has the best flatness and integrity.

关 键 词：微装药 飞片速度 飞片形态 飞片厚度 加速膛直径 

分 类 号：TJ450.3[兵器科学与技术—火炮、自动武器与弹药工程]