应用摄动法确定飞机的模态特性  

DETERMINATION OF THE MODES OF AIRCRAFT BY PERTURBATION METHODS

作　　者：孙玉君[1] 刘昶[2] 

机构地区：[1]苏州大学,苏州215006 [2]南京航空航天大学,南京210016

出　　处：《飞行力学》1993年第4期7-11,共5页Flight Dynamics

摘　　要：应用摄动法将飞机四阶线化方程降为二阶方程,导出确定飞机纵向长、短周期模态和横航向滚转、螺旋、荷兰滚模态近似解析解。The foruth-order linearizing equation of aircraft is reduced to second-order one by perturbation methods. Approximate analytical formulate are derived for determining the longitudinal and the lateral-directional modes characteristics of aircraft.

关 键 词：摄动法 模态特性 近似解 飞机 

分 类 号：V212.1[航空宇航科学与技术—航空宇航推进理论与工程]