Application of Spiral Ring Dampers in Vibration Reduction of Aeroengine Bevel Gears

Wang Yanfeng; Gao Weiqiang; Xu Yongqiang; Ou Daisong

doi:10.16578/j.issn.1004.2539.2023.12.019

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Application of Spiral Ring Dampers in Vibration Reduction of Aeroengine Bevel Gears

Development·Application | 更新时间：2023-12-21

- Application of Spiral Ring Dampers in Vibration Reduction of Aeroengine Bevel Gears
- Journal of Mechanical Transmission Vol. 47, Issue 12, Pages: 131-139(2023)
- 作者机构：
  
  中国航空发动机集团有限公司四川燃气涡轮研究院，四川成都 610500
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2023.12.019
  CLC：
- Published：15 December 2023，
  
  Received：17 September 2022，
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王艳丰,郜伟强,徐勇强等.螺旋环阻尼器在航空发动机锥齿轮减振中的应用[J].机械传动,2023,47(12):131-139.

Wang Yanfeng,Gao Weiqiang,Xu Yongqiang,et al.Application of Spiral Ring Dampers in Vibration Reduction of Aeroengine Bevel Gears[J].Journal of Mechanical Transmission,2023,47(12):131-139.
王艳丰,郜伟强,徐勇强等.螺旋环阻尼器在航空发动机锥齿轮减振中的应用[J].机械传动,2023,47(12):131-139. DOI： 10.16578/j.issn.1004.2539.2023.12.019.

Wang Yanfeng,Gao Weiqiang,Xu Yongqiang,et al.Application of Spiral Ring Dampers in Vibration Reduction of Aeroengine Bevel Gears[J].Journal of Mechanical Transmission,2023,47(12):131-139. DOI： 10.16578/j.issn.1004.2539.2023.12.019.

摘要

针对某型航空发动机中央传动从动锥齿轮振动应力超出齿轮许用应力的问题，介绍了一种应用于锥齿轮的螺旋环摩擦阻尼器。在齿轮轮缘内侧开一个凹槽，将螺旋阻尼环旋入凹槽中；工作时，齿轮轮缘和螺旋阻尼环因周向变形不协调而产生相互摩擦，从而消耗振动能量。将这种阻尼器应用于某型航空发动机锥齿轮减振方案中，试验结果表明，螺旋环阻尼器能够有效降低锥齿轮的振动应力水平；阻尼器安装前后该型锥齿轮的4节径1阶后行波共振应力降幅比高达70.7%，3节径1阶前行波共振应力降幅比为53.4%，减振后的齿轮振动应力水平低于齿轮的许用应力。此外，该型阻尼器还具有安装拆卸方便、附加不平衡量小等优点，在航空发动机齿轮减振中具有广阔的应用前景。

Abstract

In view of the problem that the vibration stress of the axle driven bevel gear of an aeroengine exceeds the permissible stress

a spiral ring friction damper is designed for the bevel gear. In detail

a concave groove is fabricated on the inside rim of gear wheels

in which the designed spiral damping ring is embedded. The circumferential deformation of the spiral damping ring is inconsistent with the gear rim under working conditions; thus the mutual friction is induced and the vibration energy could be consumed. The designed spiral damper is applied to the vibration reduction scheme of an aeroengine bevel gear. The test results show that the spiral damping ring can effectively reduce the vibration stress level of the bevel gear.The vibration reduction efficiency of the first-order

4-pitch diameter backward traveling wave resonant vibration is about 70.7%

and that of the first-order

3-pitch diameter forward traveling wave resonant vibration is about 53.4%. Then the vibration stress level of the gear after vibration reduction satisfies the allowable stress. Moreover

the spiral damper enjoys convenience in installation and disassembly

and possesses small additional imbalance

which leads to a promising and broad application for vibration reduction of aeroengine gears.

关键词

锥齿轮螺旋环阻尼器摩擦阻尼减振振动应力

Keywords

Bevel gearSpiral ring damperFriction dampingVibration reductionVibration stress

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