| 前飞状态倾转旋翼机气弹稳定性建模 |
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| 引用本文： | 薛立鹏,张呈林.前飞状态倾转旋翼机气弹稳定性建模[J].航空动力学报,2009,24(2):255-261. |
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| 作者姓名： | 薛立鹏 张呈林 |
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| 作者单位： | 南京航空航天大学直升机旋翼动力学国家重点实验室,南京,210016 |
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| 摘 要： | 基于刚性桨叶、刚体短舱及弹性机翼的假设,计入桨叶的变距/挥舞/摆振结构耦合及变距与万向铰的耦合,分别在惯性系下采用牛顿法和有限元法建立了旋翼和机翼的动力学方程,通过桨毂与短舱/机翼系统之间的共有自由度将动力学方程耦合起来,得到了前飞状态下全铰接式倾转旋翼/短舱/机翼耦合系统气弹稳定性分析模型,气动模型采用改进的叶素-动量理论,计入了扰动引起的非定常气动力影响.通过算例验证了建模的正确性.
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| 关 键 词： | 倾转旋翼机 气弹稳定性 惯性系 动力学 |
| 收稿时间： | 2008/1/22 0:00:00 |
| 修稿时间： | 2008/10/20 0:00:00 |
Modeling study on tilt-rotor's aeroelastic stability in cruise flight |
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| XUE Li-peng and ZHANG Cheng-lin.Modeling study on tilt-rotor''s aeroelastic stability in cruise flight[J].Journal of Aerospace Power,2009,24(2):255-261. |
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| Authors: | XUE Li-peng and ZHANG Cheng-lin |
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| Institution: | National Key Laboratory of Rotorcraft Aeromechanics;Nanjing University of Aeronautics and Astronautics;Nanjing 210016;China |
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| Abstract: | It's assumed that the rotor blade and nacelle were of a rigid body and the wing was represented by an elastic beam,the blade pitch/flap/lag structural coupling and pitch/gimbal coupling were considered,and then,tilt-rotor/wing dynamic equations were founded on the inertial coordinate frame according to Newton's Second law and finite element method.These two dynamic equations were coupled through the common degrees of freedom between the rotor hub and the nacelle/wing system,and then the tilt-rotor/nacelle/w... |
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| Keywords: | tilt-rotor aeroelastic stability inertial coordinate dynamics |
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