摘要
运用小扰动理论，通过在力矩方程中略去姿态项及横侧受扰运动方程组的线化和降阶处理，使横侧运动方程组用标准特征矩阵表示，从而转化成求解特征矩阵的特征根问题。并利用Ｚ１１直升机操稳试飞数据，用特征矩阵法对Ｚ１１直升机横侧稳定根进行了求解，所得结果与费拉雷法比较，结果是一致的，这表明该方法正确、可靠，完全可用于直升机横侧稳定性的飞行试验研究。
In this article,“little disturbance method”is used.To convert lateral dynamic equations to standard characteristic matrix,the method of linearization and decreasing order are used.The helicopter lateral stability roots are obtained by solving the standard characteristic matrix.Z11 helicopter test flight data are applied in solving its lateral stability roots,the result of which are compared with that of Feilarry's method. The results of this two methods are almost same.So,it is quite suitable to use the method in this paper to replace Feilarry's method.The advantage of the method in this paper lies in that it can solve more than four orders characteristic equations.
出处
《飞行力学》
CSCD
北大核心
1998年第1期70-73,共4页
Flight Dynamics
