对纵向短周期模态方程进行了推导和简化,分析了短周期模态的成因和影响的因素,以某型飞机为例计算了本体的短周期模态参数变化规律,分析了其不足,并提出改进方法并进行了计算验证,得到了较好的结果。
Deducing and simplifying the equation of pitch short-period mode.Analysising the cause of pitch short-period mode and factors effecting it.Take example for a certain type aircraft,calculating the changing rule of parameters in pitch short-period mode,analysising its shortcoming.It got good result after bring out an improved method.