| 刚度对直升机尾传动系统弯曲振动固有频率影响的分析 |
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| 引用本文： | 朱自冰,朱如鹏,鲍和云,靳广虎.刚度对直升机尾传动系统弯曲振动固有频率影响的分析[J].航空动力学报,2009,24(1):176-180. |
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| 作者姓名： | 朱自冰 朱如鹏 鲍和云 靳广虎 |
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| 作者单位： | 南京航空航天大学江苏省精密与微细制造技术重点实验室, 南京 210016 |
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| 基金项目： | 国家自然科学基金，航空基础科学基金 |
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| 摘 要： | 对直升机尾传动系统进行了简化,提出了直升机的尾传动系统是由多个轴段和圆盘组成的串联系统;建立了直升机尾传动系统的弯曲振动力学模型,模型中考虑了轴承支承刚度、联轴器的角向刚度及径向刚度;根据系统的弯曲振动力学方程,用传递矩阵法求得了系统的固有频率.结果表明:联轴器的角向刚度与径向刚度对系统的固有频率有不同的影响;增加轴段数或轴承的刚度可以降低系统的固有频率.
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| 关 键 词： | 固有频率 直升机 尾传动系统 传递矩阵法 弯曲振动 |
| 收稿时间： | 2007/12/10 0:00:00 |
| 修稿时间： | 2008/12/15 0:00:00 |
Analysis for stiffness on the bend vibration natural frequencies of a helicopter tail drive system |
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| ZHU Zi-bing,ZHU Ru-peng,BAO He-yun and JIN Guang-hu.Analysis for stiffness on the bend vibration natural frequencies of a helicopter tail drive system[J].Journal of Aerospace Power,2009,24(1):176-180. |
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| Authors: | ZHU Zi-bing ZHU Ru-peng BAO He-yun and JIN Guang-hu |
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| Institution: | Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | The helicopter tail drive system was simplified,and it was presented that a helicopter tail drive system was a cascade system comprising shaft segments and disks.A bending dynamic analysis model in which the support stiffness of the bearing and coupling were included was established.Using transfer matrix method,the differential equations were solved.The results show that the effect of the angular stiffness and the radial stiffness of coupling on natural frequencies of the helicopter tail drive system is dif... |
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| Keywords: | frequencies helicopter tail drive system transfer matrix method bending vibration |
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