不同铝氧比CL-20基含铝炸药深水爆炸能量输出特性

Energy Output Characteristics of CL-20-based Aluminized Explosives with Different Al/O Ratios during Deep-water Explosion

为研究CL-20基含铝炸药在深水爆炸所特有的高静水压环境中的能量输出特性,使用深水爆炸压力罐模拟500 m深水环境,进行6组不同铝氧比CL-20基含铝炸药深水爆炸实验。通过实验数据对高静水压条件下深水爆炸能量输出规律及能量输出结构进行分析。实验结果表明:深水爆炸冲击波峰值压力、比冲击波能、比气泡能和机械能均随铝氧比的增大先升高后降低,冲击波峰值压力符合相似律关系;损失能与其随测试距离的增加速率在铝氧比为0.24~0.88时均先升高后降低,分别在0.67和0.46时到达峰值,故可以通过改变铝氧比对深水爆炸远场能量利用效率进行调控;深水爆炸能量利用率随铝氧比的增大持续降低,机械能在0.46~0.67时维持平台值;通过调节铝氧比可在维持较高深水爆炸机械能前提下,改变比冲击波能和比气泡能的能量输出占比。

In order to study the energy output characteristics of CL-20-based aluminized explosives in the high hydrostatic environment unique to deep-water explosion.A deep-water explosion pressure tank is used to simulate a 500-meter deep-water environment,and six groups of CL-20-based aluminized explosives with different Al/O ratios are used for deep-water explosion experiments.The energy output law and energy output structure of explosiveduring deep-water explosion under high hydrostatic pressure are analyzed through the experimental data.The experimental results show that the peak pressure of shock wave,specific shock wave energy,specific bubble energy and mechanical energy of deep-water explosion climb up and then decline with the increase in Al/O ratio,and the peak pressure of shock wave conforms to the similarity relationship.When the Al/O ratio is between 0.24 and 0.88,both the lost energy and its rate of increase with the test distance increase first and then decrease,reaching the peak value at 0.67 and 0.46,respectively.Therefore,the utilization efficiency of far-field energy of deep-water explosion can be measured by changing the Al/O ratio.In addition,the energy utilization rate of deep-water explosion continues to decrease with the increase in Al/O ratio,and the mechanical energy remains high between 0.46-0.67.By adjusting the Al/O ratio,the energy output ratio of specific shock wave energy and specific bubble energy can be changed on the premise of maintaining high mechanical energy of deep water explosion.