破片式战斗部空中爆炸下冲击波与破片先后作用的临界爆距研究  

Critical stand-off distances of action order for air-blast waves and fragments by fragmentation warheads exploding in air

作　　者：陈长海[1] 侯海量[1] 李万 朱锡[1] 胡年明 CHEN Chang-hai;HOU Hai-liang;LI Wan;ZHU Xi;HU Nian-ming(College of Warship and Ocean,Naval Univ.of Engineering,Wuhan 430033,China;Naval Representative Office,Jiujiang 332007,China)

机构地区：[1]海军工程大学舰船与海洋学院,武汉430033 [2]海军某军事代表室,江西九江332007

出　　处：《海军工程大学学报》2018年第2期18-23,共6页Journal of Naval University of Engineering

基　　金：国家自然科学基金资助项目(51409253;51479204)

摘　　要：为探讨破片式战斗部空中爆炸下冲击波与破片的先后作用机制,通过分析冲击波和破片在空气中的运动规律,在考虑壳体对冲击波强度的影响下,建立了冲击波与破片先后作用临界爆距的理论计算模型,并进行了实例分析。实例分析验证了理论模型的合理性和有效性。在此基础上,对临界爆距的影响因素进行了讨论,发现战斗部装填系数、装药类型以及壳体厚度对临界爆距的影响较大,而破片质量和形状对临界爆距的影响较小;随装填系数、装药爆热和爆速、破片质量的增大,临界爆距值均相应减小;随着壳体厚度和破片形状不规则度的提高,临界爆距值相应增大。To explore the action-order mechanisms for blast waves and fragments by fragmentation warheads exploding in air,a theoretical model is developed on the basis of analyzing the motional rules of blast waves and fragments in air and considering the influence of shell on intensity of shock wave.Meanwhile,an instance analysis is carried out,and the influence factors of critical stand-off distances(CSDs)are discussed.The rationality and validity of the theoretical model are validated by the instance analysis.It is shown that warhead loading coefficients,types of explosives and shell thicknesses have great influence on CSDs,while masses and shapes of fragments have small influence.CSDs all decrease with the increases of loading coefficients,explosion heats and detonation velocities of explosives,and fragment masses.However,as shell thicknesses and abnormity degrees of fragment shapes increase,CSDs increase correspondingly.

关 键 词：爆炸力学 破片式战斗部 空爆冲击波 高速破片 临界爆距 

分 类 号：O382.1[理学—流体力学]