多点起爆环形波的传播及对药型罩作用研究

Aim at the application problem of annular multi-point initiation network on multimode shaped charge, the process of reciprocity, spread and effect on liner of the detonation wave formed by annular multi-point initiation is studied, by using associative means of theory analysis, ANSYS finity element simulation calculation, streak camera photograph and X-ray imaging trial research. The shape and wave configuration of mach-wave formed by annular multi-point initiation, the development and change law of the mach-wave, and the load distributing law of detonation offspring can be obtained. The analysis model of charge detonation under the condition of annular multi-point initiation is built, and the law of spread and effect on liner of the annular detonation wave formed by multi-point initiation is exhibited. The effect of annular multi-point initiation condition, such as initiation point, synchronized initiation precision and initiation position, on the penetrator forming is researched. The quantification matching relationship between initiation parameters and charge caliber can be obtained, and the contradiction problem of initiation point and initiation precision increasing with charge caliber will be solved. Through researching on this item, it can be hopeful to exhibit the law of reciprocity, spread and effect on liner of the detonation wave under the condition of annular multi-point initiation, obtain the matching rule of initiation equipment, liner and charge configuration, and solve the matching problem between the correlative parameters of annular multi-point initiation and the configuration of shaped charge, which provide theory reference and technology guidance for the more study of the new generation efficient multimode damage warhead.

针对环形多点起爆网络在多模成型装药上的应用问题，采用理论分析、ANSYS有限元仿真计算、狭缝摄影与X光成像试验研究相结合的研究方法，研究环形多点起爆爆轰波相互作用及传播规律和对药型罩的作用过程，获得环形多点起爆形成的马赫波的形状及波结构、马赫波的发展变化规律及爆轰产物的载荷分布规律，建立环形多点起爆下装药爆轰的分析模型，揭示多点起爆环形波的传播及对药型罩的作用规律；研究起爆点数、同步起爆精度和起爆位置等环形多点起爆条件对毁伤元成型的影响规律，获得起爆参数跟装药口径的量化匹配关系，解决起爆点数和起爆精度随装药口径增大的矛盾问题。通过本项目研究，有望揭示环形多点起爆条件下爆轰波相互作用、传播及对药型罩的作用规律，获得起爆装置、药型罩及装药结构三者的匹配规律，最终解决环形多点起爆相关参数与成型装药结构的匹配问题，为新一代高效多模毁伤战斗部的进一步研究提供理论依据和技术指导。

本项目以环形多点起爆网络在多模成型装药上的应用问题为研究背景，主要围绕环形多点起爆爆轰波相互作用及传播规律、环形多点起爆爆轰波对药型罩作用过程及环形多点起爆条件对毁伤元成型影响三方面内容开展了大量理论、仿真与试验研究，对比分析了单点起爆C-J爆轰波的稳定传播过程与环起爆爆轰波相互作用及传播过程，获得了环形多点起爆形成的马赫波的发展变化规律及爆轰产物的载荷分布规律，建立了环形多点起爆下装药爆轰的分析模型；研究了环起爆有效装药分析计算方法，分析了单点起爆爆轰波及多点起爆环形波对药型罩的作用过程，分别讨论了无碰撞、正碰撞及正规斜碰撞、非正规斜碰撞时药型罩的压垮情况，建立了多点起爆环形波压垮药型罩形成杆式射流的理论分析模型，揭示了环形多点起爆条件下爆轰波相互作用、传播及对药型罩的作用规律；研究了环形多点起爆网络（起爆点数、起爆精度及起爆位置）、药型罩及装药结构参数对毁伤元成型的影响规律，找出了形成较佳双模毁伤元的起爆控制参数、药型罩曲率半径、壁厚与锥角及装药长径比等结构参数的取值范围，建立了起爆装置、药型罩及装药结构与毁伤元成型之间的匹配关系；设计了刚性多点同步起爆网络，确定了最佳的基板厚度和临界刻槽宽度，采用PXI亚纳秒脉冲时序测试系统测试了起爆网络的同步起爆精度，并实弹检验了起爆偏差对毁伤元成型的影响；分析了多点起爆下褶皱尾裙的成型机理，得到了多点起爆爆轰波作用在药型罩上的爆轰压力分布规律，找出了100mm、200mm、300mm和400mm四种装药口径的最佳点代环起爆点数分别为6点、8点、9点和10点及对应的起爆偏差控制要求，拟合得到最佳点代环起爆点数及允许的最大起爆偏差随装药口径变化的曲线方程，揭示了起爆点数、起爆偏差、装药口径及毁伤元成型之间的匹配规律，以上研究成果将为新一代高效多模毁伤战斗部的进一步研究提供理论依据和技术指导，同时为多点起爆技术的进一步工程应用奠定理论基础。