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针对无控冲击波冲量沿杆条长度方向上不均匀作用会使离散杆的局部应力超过杆条材料的屈服极限,导致杆条弯曲甚至断裂,影响杆条的旋转和飞散姿态,最终影响战斗部毁伤威力的问题,采用数值仿真的方法利用波形控制器使冲击波波形可控,并对有控冲击波形作用下的杆条破片的初始抛撒状态进行了仿真研究。结果表明,折线形波形控制器能够使冲击波沿战斗部轴向以平面波的形式传播,冲击波冲量能够均匀地作用于杆条上,使杆条在初始抛撒时受力均匀,不会发生大变形弯曲。
Aiming at the non-uniform impact of uncontrolled shock wave along the length of the bar, the local stress of the discrete bar exceeds the yield limit of the bar material, causing the bar to bend or even break, affecting the rotation and scattering posture of the bar and finally affecting the warhead damage The power of the problem, the use of numerical simulation method using the waveform controller to make the shock wave controllable, and the impact wave under the action of the sharpened strip under the initial state of the simulation was simulated. The results show that the polyline controller can propagate the shock wave in the form of plane wave along the axial direction of the warhead. The impulse of shock wave can be uniformly applied to the rod so that the rod will be uniformly stressed during the initial scattering without large deformation bending .