滑块机构下高旋弹头的惯量张量特性分析  

Inertia Tensor Analysis for High-Rolling Projectile with Inner Moving-Mass Framework

作　　者：李永博[1] 郭治[1] 

机构地区：[1]南京理工大学自动化学院,南京210094

出　　处：《电光与控制》2009年第9期9-12,46,共5页Electronics Optics & Control

摘　　要：针对高速旋转弹头滑动质量块机构设置的特点,分析了惯量张量对其动力学特性的影响,得到结论为:在这种情形下,惯量张量对系统的影响是不能忽略的。首先推导了N滑块体系下系统的惯量张量,以双滑块机构为物理模型分别建立了质心平动动力学方程和绕质心转动动力学方程,接着构建了完整的滑块机构设置下系统8自由度方程,最后进行了数字仿真,结果表明径向滑块运动对外弹道影响比较明显,特别是对偏流尤为突出。With respect to moving-mass framework of high-rolling projectile, the effect of inertia tensor on its dynamical characteristics is analyzed, the conclusion is that the effect of the inertia tensor can not be neglected in this case. Firstly, systemic inertia tensor is established based on N moving-mass. Then, the model is built up under axis and radial moving-mass＇ s framework, which consists of translational dynamics equation and rotational dynamics equation. The eight-DOF equation of the system based on the integrated moving-mass framework is set up. Finally, digital simulation shows that radial mass has obvious effect on exterior ballistic parameters, especially for deflective flow.

关 键 词：高速旋转弹 惯量张量 滑块机构 偏流 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计] TJ765[兵器科学与技术—武器系统与运用工程]