两端点起爆对炸药近地场冲击波威力增强效应研究  

Enhancement Effect of Initiation Methods on Shock Wave Power in Near-Ground Field Explosive

作　　者：史利平[1] 王成龙 吴宏斌[1] 史文卿[1] 薛再清[1] SHI Liping;WANG Chenglong;WU Hongbin;SHI Wenqing;XUE Zaiqing(Beijing Institute of Space Long March Vehicle,Beijing 100074,China)

机构地区：[1]北京航天长征飞行器研究所,北京100074

出　　处：《北京理工大学学报》2022年第4期340-346,共7页Transactions of Beijing Institute of Technology

基　　金：航天科技创新基金;航天科技钱学森青年创新基金。

摘　　要：通过试验和仿真分析研究了两端点起爆对炸药爆炸近地冲击波场分布的影响.研究结果表明,两端点起爆爆轰波在炸药中心形成汇聚叠加,初始冲击波场在汇聚中心形成耦合增强,并在中心汇聚位置向周向水平传播,显著增强了冲击波在近地场的传播距离和超压威力.对比上端点起爆、下端点起爆和两端点起爆方式,炸药在比例距离1.5 m·kg^(-1/3)<Z<4.5 m·kg^(-1/3)范围内地面冲击波超压,两端点起爆相比一端点起爆炸药近地场冲击波威力明显提升,比例距离范围内冲击波超压平均提高43%,在比例距离2.5 m·kg^(-1/3)<Z<3 m·kg^(-1/3)范围内提升最为明显.In order to investigate the influence of both end initiation explosive on the shock wave power distribution in the near-ground field,experiment and simulation analysis were carried out.The results show that in both end initiation,the initial shock wave is coupled to the convergent center of detonator and boosted up,and then propagates horizontally in the circumferential direction from the central converging position in the air,significantly enhancing the propagation distance and overpressure power of shock wave in the near-ground field.Compared with the explosive detonation initiated at one end,in the scaled distance of 1.5 m·kg^(-1/3) to 4.5 m·kg^(-1/3),the power of the near-ground field shock wave initiated at both ends is significantly increased.The shock wave overpressure in the scaled distance range is increased by an average of 43%,and the increase is most obvious in the scaled distance from 2.5 m·kg^(-1/3) to 3 m·kg^(-1/3).

关 键 词：爆破战斗部 两端点起爆 近地场 冲击波 威力提升 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]