铜丝电爆炸等离子体对含能材料的驱动特性  

Ignition Performance of Cu-wire Electrical Explosion Plasma on Energetic Materials

作　　者：周海滨 张永民[2] 刘巧珏[2] 景龑 韩若愚 邱爱慈 ZHOU Haibin;ZHANG Yongmin;LIU Qiaojue;JING Yan;HAN Ruoyu;QIU Aici(System Engineering Research Institute, Beijing 100094, China;School of Electrical Engineering, Xi＇an Jiaotong University, Xi＇an 710049, China)

机构地区：[1]中国船舶工业系统工程研究院,北京100094 [2]西安交通大学电气工程学院,西安710049

出　　处：《高电压技术》2017年第12期4026-4031,共6页High Voltage Engineering

基　　金：国家高技术研究发展计划(863计划)(2013AA064502);国家重点基础研究发展计划(973计划)(2013CB228004)~~

摘　　要：水中冲击波技术应用广泛,冲击波的能量和重复频率是其实际应用的重要指标。金属丝电爆炸驱动含能材料的方法,可实现保证重复频率工作的前提下,提高冲击波能量,增强其破坏效应。为此研究了不同系统初始储能下铜丝几何参数对驱动效果的影响,分析了金属丝包覆含能材料后的放电特性,并通过对金属丝放电波形和冲击波波形的对比分析,研究了不同系统初始储能下,铜丝几何参数对驱动效果的影响。研究结果表明:覆于金属丝外部的含能材料会吸收丝爆产生冲击波的能量,从而减小冲击波峰值压力,但会增大冲击波冲量,增强了冲击波的破坏效应;系统储能较低时,存在最优金属丝参数,一定条件下使其对含能材料的驱动效果最佳,产生的冲击波最强;当系统储能较高时,金属丝直径等参数对驱动效果的影响不显著;金属丝电爆炸驱动含能材料的机制可能是强冲击波、等离子体和强辐射等因素的联合作用。Electrohydraulic shock waves has been widely used in many fields. Energy and repetition frequency are key factors for shock wave practical application. We proposed a method of using electrical wire explosion igniting energetic materials （EMs）, which could increase shock wave energy and enhanced its damage effect under a proper working frequency,and analyzed the discharge property of electrical wire coated with energetic material, By analyzing the discharge wavcforms and the shock wave waveforms, we studied the influences of wire diameters on ignition performanccs under different charging voltages. Results show that these EMs wrapped around the Cu-wire will absorb the shock wave energy to some extent, which will decrease shock wave peak pressure, while increase the impulse, and generally enhance the shock wave damaging ability. When the stored energy is low, an optimal wire dimension exists to ignite EM most effectively; when the stored energy is high, ignition performance is not sensitive to the wire parameters. Electrical explosion ignition may be a heat-radiation-shock combined process, and the three effects happen synchronously, so it is hard to distinguish their separate contributions.

关 键 词：金属丝电爆炸 含能材料 沉积能量 水中冲击波 等离子体驱动 

分 类 号：TQ560.1[化学工程—炸药化工]