尾翼式旋转火箭的弹道散布仿真分析

为了优化火箭弹设计,提高火箭射击精度,对多种因素下尾翼式旋转火箭的弹道散布进行了仿真分析。分析尾翼式旋转火箭散布的影响因素,建立模拟仿真数学模型,以刚体弹道模型为例对多种因素引起的弹道散布进行仿真分析。仿真结果表明:起始扰动、推力偏心、随机风、气动偏心、质量偏心、动不平衡等因素对火箭散布影响较大;对于大长径比远程火箭,还要考虑非线性运动造成的散布影响。

Simulation and Analysis on Ballistic Dissemination of Rocket with Empennage

In order to optimize the design of rocket and increase its firing precision, the simulations and analysis are carried out aiming at the ballistic dissemination of the rolling rocket with empennage under influencing factors. The rigid mathematical model is established to make the simulation after analyze the influence factors, taking rigid ballistic model as example progress simulations and analysis to ballistic dissemination. The results of the simulations show that the factors such as initial disturbance, thrust eccentricity, stochastic wind, aerodynamic eccentricity, mass eccentricity and dynamic misbalance can arouse ballistic dissemination. Meanwhile, the nonlinear motion is another important factor which can arouse ballistic dissemination for the rocket with large value of length divided by diameter.