带前舱弹体斜撞击硬目标的姿态偏转

Attitude Deflection of Projectile with Nose Cabin Under Oblique Impact on the Hard Target

针对带前舱弹体斜侵彻硬目标靶体的动态力学响应问题,建立了变截面刚度自由梁在横向及轴向载荷交互作用下的动态力学响应模型,分析了带前舱弹体斜侵彻硬目标时的动态响应特性,得到了前舱破坏对弹体着靶姿态角的变化规律,结果表明,前舱的量纲一长度、前舱与弹体连接刚度/前舱截面屈服模量与弹体的偏转角正相关.

For the problem of dynamic mechanical response of the projectile with nose cabin impacting on a hard target, a dynamic mechanical response model was established for a free beam with variable cross-section stiffness under lateral and axial loads. The dynamic response characters were analyzed for the nose-cabin projectile penetrated into hard target, and the influence of the cabin damage on the projectile attitude was gotten. Results show that the normalized length of the cabin, the connection stiffness between the cabin and the projectile, the yield strength of the nose cabin has a positive correlation with the deflection angle of the projectile.