新型环形聚能射流形成机理研究

为了解决环形聚能射流稳定性差、速度低等缺点，提出了一种新型环形聚能装药结构，基于正交优化方法，采用Autodyn软件对新型环形聚能装药结构进行了优化设计，给出了药型罩壁厚、药型罩曲率半径、聚焦装置锥角、喷孔直径及壳体厚度对射流头部轴向及径向速度的影响，优化出了径向偏转速度低的新型环形聚能射流，并进行了实验验证，实验结果与数值模拟结果基本一致.数值模拟及实验结果均表明，文中提出的新型环形聚能装药结构能够形成环形破孔，在钢靶上破孔直径107 mm，深度28 mm. 

Investigation of New Type Annular Shaped Charge Formation Mechanism

A new structure of annular shaped charge jet was proposed to solve the deficiency of existing annular shaped charge, such as poor stability, lower velocity, etc. Based on the orthogonal optimization method, the influence of liner thickness, radius of curvature of liner, the cone angle of the focusing device, the diameter of the nozzle and the thickness of the shell on axial and radial velocity of jet tip was measured by Autodyn software. A new type of annular shaped jet with high axial velocity and low radial deflection speed was optimized and verified. The experimental results are in good agreement with the numerical simulation results. The numerical simulation and experimental results show that the new annular shaped charge structure proposed in this paper can form an annular hole on steel target, with hole diameter of 107 mm, and depth of 28 mm.