应用数值模拟和灰色理论计算分析聚能装药参数对聚能侵彻体成型性的影响

通过数值模拟研究了药型罩及装药参数对聚能射流成型性能的影响,在此基础上,运用灰关联理论对影响侵彻体性能的各个参数的灰关联度进行了分析。结果表明,药型罩高度、壁厚、锥角、装药高度是影响侵彻体成型性能的主要因素,改变药型罩高度可以实现对侵彻体成型性的控制,药型罩壁厚对侵彻体最后成型产生较大影响,药型罩锥角可以有效控制侵彻体头部和尾部速度差,灰关联分析结果可以作为药型罩设计中优先考虑的重要参数。

Computational Analysis on Parameters of Shaped Charge Affecting Formation of Jetting Projectile by Numerical Simulation and Grey Relation Theory

This paper analyzes the factors that affect jetting projectile formation of shaped charge through numerical simulation.Grey relational degree of each factor is obtained from grey relation theory.It is suggested that altitude,thickness of the liner wall and(Apex) angle of liner,as well as altitude of shaped charge are the main factors affecting formation performance of jetting projectile.Jetting projectile formation is controlled by thickness of the liner wall seriously;and the tip and tail velocity difference of jetting projectile is affected by Apex angle of liner.The analysis indicates that the grey theory is a useful way to determine line parameters in liner design.