| 单轴双桨叶直升机“地面共振”的数值分析 |
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| 引用本文： | 陆萌,费斌军,任志勇,李晓兰.单轴双桨叶直升机“地面共振”的数值分析[J].航空学报,1995,16(3):93-99. |
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| 作者姓名： | 陆萌 费斌军 任志勇 李晓兰 |
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| 作者单位： | 北京航空航天大学五系 |
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| 摘 要： | 对共轴双桨叶双旋翼系统及单轴双桨叶直升机在各向异性支座上的“地面共振”问题进行了数值分析。对计算结果及问题进行了讨论。
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| 关 键 词： | 直升机 地面 共振 稳定性 数值分析 |
A NUMERICAL ANALYSIS FOR THE GROUND RESONANCE OF A TWO-BLADE HELICOPTER ROTOR ON ANISOTROPIC FLEXIBLE SUPPORTS |
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| Lu Meng,Fei Binjun,Ren Zhiyong,Li Xiaolan.A NUMERICAL ANALYSIS FOR THE GROUND RESONANCE OF A TWO-BLADE HELICOPTER ROTOR ON ANISOTROPIC FLEXIBLE SUPPORTS[J].Acta Aeronautica et Astronautica Sinica,1995,16(3):93-99. |
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| Authors: | Lu Meng Fei Binjun Ren Zhiyong Li Xiaolan |
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| Affiliation: | 5th Dept. of Beijing University of Aeronautics and Astronautrcs, Beijing, 100083 |
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| Abstract: | A numerical analysis is conducted to study the ground resonance of two-blade helicopter rotor on anisotropic flexible supports, in which both co-axis and uniaxis helicopters with two blades are considered. It is shown that the present method is effective and convenient with consideration of the linear stability model, especially when a symbolic reduction technique is utilized to derive analytically the corresponding governing equations, The computation reveals many interesting results, some of which are scarcely reported in previous studies and herein are discussed in detail. |
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| Keywords: | helicopters ground resonace stability numerical analysis |
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