Analysis for stiffness on the bend vibration natural frequencies of a helicopter tail drive system

ZHU Zi-bing; ZHU Ru-peng; BAO He-yun; JIN Guang-hu

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Analysis for stiffness on the bend vibration natural frequencies of a helicopter tail drive system

更新时间：2026-07-07

- Analysis for stiffness on the bend vibration natural frequencies of a helicopter tail drive system
- Vol. 24, Issue 1, (2009)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2009
- 稿件说明：
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ZHU Zi-bing, ZHU Ru-peng, BAO He-yun, et al. Analysis for stiffness on the bend vibration natural frequencies of a helicopter tail drive system[J]. 2009, 24(1).
DOI：

ZHU Zi-bing, ZHU Ru-peng, BAO He-yun, et al. Analysis for stiffness on the bend vibration natural frequencies of a helicopter tail drive system[J]. 2009, 24(1). DOI：

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.

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 different

and the natural frequencies could be reduced with the increase of shaft segments or stiffness of the bearing.

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Related Author

NI De

ZHU Ru-peng

LU Feng-xia

BAO He-yun

JIN Guang-hu

LI Miao-miao

ZHU Zi-bing

ZHU Ru-peng

Related Institution

China Aviation Powerplant Research Institute, Aviation Industry Corporation of China

Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics

College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics

China Helicopter Research and Development Institute, Aviation Industry Corporation of China, Limited

National Laboratory of Science and Technology on Rotorcraft Aeromechanics, Nanjing University of Aeronautics and Astronautics

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