弹性飞行器伺服气动弹性分析  

Aeroservoelastic analysis of elastic aircraft

作　　者：王征[1] 赵育善[1] 师鹏[1] 李文龙[1] 

机构地区：[1]北京航空航天大学宇航学院,北京100191

出　　处：《飞行力学》2012年第3期233-237,共5页Flight Dynamics

摘　　要：伺服气动弹性问题是因非定常空气动力、结构弹性与飞行控制系统间的闭环耦合而引起的弹性飞行器新课题。首先,综述了飞行器伺服气动弹性相关问题;其次,考虑飞行器刚体模态与弹性模态的动态耦合,建立了弹性飞行器俯仰通道短周期运动模型;最后,通过编制软件对飞行器伺服气动弹性进行了仿真分析,并得出了相应的结论。Aeroservoelasticity is a new subject for elastic aircraft,which mainly deals with the coupling effect of unsteady aerodynamics,structural dynamics and flight control system.First of all,aeroservoelasticity and some related problems has been stated.Second,considering the coupling effect of the rigid-body and elastic modes,the short-period dynamic model of the pitch loop has been theorized.Finally,aeroservoelastic analysis for a long and slender unmanned aircraft is simulated.

关 键 词：伺服气动弹性 非定常空气动力 弹性模态 俯仰通道 

分 类 号：V215.3[航空宇航科学与技术—航空宇航推进理论与工程]