磁场抑制断裂聚能射流颗粒翻转试验研究与数值模拟

为了研究磁场对翻转射流颗粒的抑制和修正问题,分析了断裂聚能射流颗粒与外加磁场的相互作用过程,使用装药直径为56 mm的成型装药在490 mm和650 mm 2种炸高下进行了磁场与聚能射流相互作用的试验研究,利用Ansoft Maxwell电磁分析软件,对不同初始翻转角度的聚能射流颗粒在外加磁场中的受力以及力矩情况进行了数值仿真,仿真和试验吻合较好。仿真结果表明,磁场对翻转射流颗粒具有抑制和修正作用,初始翻转角度对射流颗粒的受力以及力矩有较大影响; 材料的电阻率在聚能射流颗粒与强磁场相互作用过程中有很大的影响。

Experimental Investigation and Numerical Simulation on Magnetic Field Inhibiting Rotation of Shaped Charge Jet Particles

To research the subject of magnetic field inhibiting rotation of shaped charge jet-particles,the interaction process of external magnetic field and the shaped charge jet particles was analyzed according to the experiments,and the experiments of the shaped charges with the diameter of 56 mm interacting with the magnetic field at the standoff of 490 mm and 650 mm respectively were carried out.The force and torque of the shaped charge jet-particles with different initial rotation angle inside the external magnetic field were simulated by Ansoft Maxwell software.The simulation results are consistent with the experimental results.The simulation results show that the external magnetic field can inhibit rotation of the jet particles,and the force and torque of the jet particles inside the magnetic field are obviously affected by the initial rotation angle and the material resistivity.