超音速悬索火箭橇下拉幅度运动仿真分析

Dynamic Simulation Analysis of Supersonic Rocket's Dragging Effecton the Rope

悬索火箭橇是利用平行悬置的两根绳索约束火箭运动的实验装置。为了模拟火箭橇运动过程,文中采用Newton方法进行悬索动力建模,根据火箭橇结构参数建立火箭橇运动模型,采用龙格库塔法仿真计算火箭橇在悬索上的运动过程,得到火箭橇运动轨迹,悬索动态位置、悬索应力分布等参数,并计算出火箭橇飞行对悬索的下拉距离,文中计算结果与前期实验结果较一致。

Rocket on the Rope is a new kind of rocket trace test instrument, it uses two parallel lines to constraint rocket ＇ s movement in the pointed direction. For simulating the rocket flying process, this paper uses Newton method to construct the rope dynamic model, and construct rocket flying model according to its detail parameter variety, We uses Runge-Kutta method to simulate the rocket＇ s movement, and ecalculate the rocket flying trace on the rope, rope dynamic position and rope stress force and so on, we also calculates rope shifts dis- tance from its initial position in vertical direction, the result is just same as the rocket flying test result in the early day.