大型旋转火箭弹在常推力作用下的发射特性

Launch Behavior of a Large-size Spin Rocket under Constant Thrusts.

将大型旋转火箭的发射问题模化为变刚度柔性转子在轴力和横力作用下的空间约束时变系统，建立纵、横振动耦合的偏微分方程组，应用有限元广义变分法，给出发射过程中的动态响应和参数特性的数值解。

The launch of a large-size spin rocket can be modeled as the spitial binding system for a varying stiffness flexible rotor under constant thrusts,Coupled partial differential equations of longitudinal and transverse vibrations are established.The numerical solution is given for dynarnic response and parameters,behavior during launch by means of finite elementgeneralized calculus of variations.