固体发动机推力偏差对导弹级间分离的影响

考虑固体发动机推力偏斜和横移的影响,应用六自由度弹道方程对地空导弹级间分离进行了建模、仿真。对级间分离后主级受控信号被助推级遮挡过程进行了建模分析。仿真计算表明,推力偏斜和横移对分离(或遮挡)过程影响较大;分离时间越晚,过程时间越短;第一个滚转周期内的推力偏差对结果有决定性影响。

Effect of solid motor thrust bias on stage separation of missile

In consideration of the effect of solid rocket mo tor thrust deviation and transverse shift,the stage separation process of two-s tage ground-to-air missile was modeled and simulated by using six-freedom-de gree ballistic equation,and the process of principal control signal sheltered by booster was modeled and analyzed.The simulation results show that thrust deviat ion and transverse shift have great effects on the stage separation process or s ignal-sheltered process;the later the separation moment is,the shorter duration time of the process is;thrust deviation in the first rolling period has decisiv e effect on the result of stage separation process.