摘要
为了研究爆轰产物作用下双层药型罩的射流形成过程,应用PER理论拓展建立了双层药型罩成型装药点起爆时射流形成的分析模型。为获得爆轰波与双层药型罩的相互作用关系,通过数值模拟方法,得到了D efourneaux经验常数与爆轰波入射角的关系,并推导了双层药型罩当量密度公式。将射流形成的分析模型结果与数值模拟结果进行对比,验证了分析模型的合理性。使用分析模型研究了双层药型罩结构参数对射流形成的影响规律,为双层药型罩的结构设计提供了理论依据。
In order to study the formation of jet from DLCL （Double-Layered Conical Liner） caused by detonation products, the PER theory was used to build an analytical model to study the jet formation of DLCL initialed by point detonation. Defourneaux equation was brought into the model to get the relationship between the detonation wave and the DLCL. The relationships between the detonation wave attack angle and Defourneaux coefficients were gained using numerical simulations. The expression about the DLCL equivalent density was deduced. The analytical and numerical calculation results were compared and the comparison verified the rationality of the analytical model. The laws that govern the relationships between the configuration parameters and the jet formation were investigated and the model can provide design references for studying and designing the doublelayered conical liner.
出处
《火炸药学报》
EI
CAS
CSCD
2008年第3期10-14,共5页
Chinese Journal of Explosives & Propellants
关键词
爆炸力学
双层药型罩
射流
分析模型
数值模拟
explosion mechanics
double layered conical liner
jet
analytical model
numerical simulation
