Currently, active protection system of tank & armored vehicle at home and abroad can effectively intercept anti-tank missile, rocket projectile, HEAT projectile and other low-speed active munitions warhead, but it cannot effectively intercept APDSFS and other inert warhead munitions whose speed is over 1500m/s. Through the a-nalysis of invulnerability of rod armor piercing projectile, this paper proposed a new kill element for rotating and cut intercept rod armor piercing projectile. In order to solve the instantaneous formation of rotating and cut flying kill ele-ment, according to the formative requires of the kill element, high pressure driving model of kill element rotating and flight in driver device was set up. The theoretical calculations and finite element simulation were used for analysis of its formation process. The results show that the axial velocity and rotational velocity of the kill element achieve the desired results within lms. This research provides a theoretical basis for structural design of rotating and cut flying kill element and high pressure driver device.%研制坦克装甲车辆主动防护系统,可以有效拦截反坦克导弹、火箭弹、破甲弹等低速、活性战斗部弹药.但还不能有效拦截飞行速度高达1500m/s以上的尾翼稳定脱壳杆式穿甲弹等惰性战斗部弹药.在对轩式穿甲弹的低易损性特征分析的基础上,提出了一种旋飞切割式拦截杆式穿甲弹的新型毁伤元.为了解决旋飞切割毁伤元的瞬时形成问题,根据毁伤元的形成要求,建立了驱动装置内旋飞运动的高压驱动模型,理论计算与有限元仿真相结合的方法分别对其形成过程进行数值分析.分析结果表明在1m/s内该毁伤元的旋飞速度与转速能够达到理想值.为旋飞切割毁伤元飞盘和高压驱动装置的结构设计提供了理论依据.
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