Research of Gear Structure Optimization Method based on Vibration Stress Analysis

Guilin Jiang; Maoqiang Zhang; Haixu Wang; Hong Sun; Shuang Gao

doi:10.16578/j.issn.1004.2539.2021.12.020

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Research of Gear Structure Optimization Method based on Vibration Stress Analysis

Test·Analysis | 更新时间：2022-09-15

- Research of Gear Structure Optimization Method based on Vibration Stress Analysis
- Journal of Mechanical Transmission Vol. 45, Issue 12, Pages: 124-129(2021)
- 作者机构：
  
  1.中国航发沈阳发动机研究所，辽宁沈阳 110015
  2.中国航发航空发动机动力传输重点实验室，辽宁沈阳 110015
  3.中国航发沈阳黎明航空发动机有限责任公司，辽宁沈阳 110043
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2021.12.020
  CLC：
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姜贵林,张茂强,王海旭等.基于振动应力分析的齿轮结构优化方法研究[J].机械传动,2021,45(12):124-129.

Jiang Guilin,Zhang Maoqiang,Wang Haixu,et al.Research of Gear Structure Optimization Method based on Vibration Stress Analysis[J].Journal of Mechanical Transmission,2021,45(12):124-129.
姜贵林,张茂强,王海旭等.基于振动应力分析的齿轮结构优化方法研究[J].机械传动,2021,45(12):124-129. DOI： 10.16578/j.issn.1004.2539.2021.12.020.

Jiang Guilin,Zhang Maoqiang,Wang Haixu,et al.Research of Gear Structure Optimization Method based on Vibration Stress Analysis[J].Journal of Mechanical Transmission,2021,45(12):124-129. DOI： 10.16578/j.issn.1004.2539.2021.12.020.

摘要

针对航空发动机传动系统齿轮辐板断裂现象，进行了原因分析；通过断口检查、强度计算、振动特性分析、应力测试等，确定齿轮辐板断裂的性质为节径共振引起的高周疲劳。基于分析结果，以降低振动应力、提高强度储备为目标，对齿轮结构进行了改进优化设计，并对优化后的结构进行了试验验证。结果表明，齿轮结构优化后，振动应力值大幅降低，齿轮结构强度储备与工作可靠性明显提升。

Abstract

The reason of the aeroengine transmission gear spokes fracture fault is analyzed，through the fracture examination，strength calculation，vibration characteristic analysis and stress test，the nature of the gear spokes fracture fault is the high-cycle fatigue caused by the pitch diameter resonance is determined. Based on the analysis results，the gear structure is improved and optimized to reduce vibration stress and increase strength reserve，and the optimized structure is tested and verified. The results show that the vibration stress of the optimized structure is greatly reduced，the strength reserve and working reliability are improved obviously.

关键词

航空发动机齿轮振动应力节径共振

Keywords

AeroengineGearVibration stressPitch diameter resonance

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