针对低速旋转弹箭飞行过程中出现的姿态振荡问题,飞行试验中通常采用转速传感器及过载传感器进行飞行品质的测量,当出现姿态振荡时只能根据过载信号发现章动现象,而无法定量分析。文中通过对飞行过程中基于弹体系下的过载传感器信息进行频率特性分析,对姿态章动过程进行了定量解算,重构飞行章动过程,并通过弹道仿真对分析方法和分析结果进行了验证,为了解飞行状态及飞行品质提供评价依据。

For the problem of attitude oscillation during projectile low-speed rotating flight, the rotating speed and overload sensors are usually used to measure the flight quality. When the attitude oscillation occurs, the nutation can only be found based on the overload signal, but cannot be quantitatively analyzed. To solve this problem, the approach of the rocket attitude oscillation quantitative analysis is provided, and the flight nutation process is reconstructed by the frequency characteristic analysis of flight overload sensor signal in the body coordinates. The analysis result and analysis approach are verified by trajectory simulation. The analysis approaches can provide the judgment basis for the flight state and flight quality.