| 倾转旋翼机回转颤振研究 |
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| 引用本文： | 贾大伟,韩景龙.倾转旋翼机回转颤振研究[J].直升机技术,2007(3):45-51. |
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| 作者姓名： | 贾大伟 韩景龙 |
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| 作者单位： | 南京航空航天大学振动工程研究所 南京210016 |
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| 摘 要： | 建立倾转旋翼机飞机模式的分析模型,分析系统的频率和阻尼特性,揭示了对系统稳定性起主要作用的一些模态;分析了旋翼摆振运动、机翼气动力和自转状态假设对系统稳定性的影响;分析了系统一些重要参数,如桨叶固有频率和机翼固有频率,对系统回转颤振稳定性的影响。分析结果表明:本文建立的模型可以有效地分析倾转旋翼机的回转颤振特性。
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| 关 键 词： | 倾转旋翼机 飞机模式 回转颤振 气动弹性 |
Study on Whirl Flutter of Tiltrotor |
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| Authors: | JIA Da-wei HAN Jing-long |
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| Abstract: | The airplane mode's model of tiltrotor was founded.The fundamental frequency and damping characteristics of this model were studied,and the primary modes to stability were reaveled.The influences of lag,aerodynamics of wing and autorotation assumption to stability were studied.The influence to whirl flutter of some important system parameters,such as frequency blade and wing,were studied.The results of these analyses demonstrate that the model founded in this paper can catch fundamental whirl flutter characteristics of tiltrotor effectively. |
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| Keywords: | tiltrotor airplane mode whirl flutter aeroelastic |
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