全机低速颤振模型刚体运动稳定性研究  

Research on Rigid Motion Stability of the Whole Aircraft Low Speed Flutter Model

作　　者：张桂江[1] 钱卫[1] 胡鑫[1] 

机构地区：[1]沈阳飞机设计研究所,辽宁沈阳110035

出　　处：《飞机设计》2013年第4期1-3,共3页Aircraft Design

摘　　要：针对全机低速颤振风洞试验中存在的模型刚体不稳定现象,建立颤振模型刚体运动学一般性方程。运用稳定性原理判别模型系统的稳定性类型,并求解出不稳定风速,分析了一些因素对模型稳定性的影响规律,给出了模型静、动不稳定性发生转换与物理特性之间的关系,同时可进行悬挂系统及配重体系的设计,以保证全机低速颤振风洞试验的顺利进行。The general motion equations were derived in order to analyze the nglc1 mouon mstaomty about the whole aircraft low speed flutter model, Use the stability theories we can discriminate the type of instability, and get the instibility speed. Some regularity about static and dynamic instability were found. To make good play under the wind test, the design methods about suspension system and balance weight were presented.

关 键 词：颤振 稳定性 风洞试验 悬挂系统 

分 类 号：V214.1[航空宇航科学与技术—航空宇航推进理论与工程]