Calculation Model of Time-varying Meshing Stiffness of Planet Gear Pitting Fault based on Full Tooth Profile

Chaoyang Jiang; Yanxue Wang; Junjie Lai

doi:10.16578/j.issn.1004.2539.2021.06.008

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Calculation Model of Time-varying Meshing Stiffness of Planet Gear Pitting Fault based on Full Tooth Profile

Design· Calculation | 更新时间：2022-11-10

- Calculation Model of Time-varying Meshing Stiffness of Planet Gear Pitting Fault based on Full Tooth Profile
- Journal of Mechanical Transmission Vol. 45, Issue 6, Pages: 51-57(2021)
- 作者机构：
  
  1.桂林电子科技大学机电工程学院，广西桂林 541000
  2.北京建筑大学机电与车辆学院，北京 100044
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2021.06.008
  CLC：
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蒋超阳,王衍学,赖俊杰.基于全齿廓的行星齿轮点蚀故障时变啮合刚度计算模型[J].机械传动,2021,45(06):51-57.

Jiang Chaoyang,Wang Yanxue,Lai Junjie.Calculation Model of Time-varying Meshing Stiffness of Planet Gear Pitting Fault based on Full Tooth Profile[J].Journal of Mechanical Transmission,2021,45(06):51-57.
蒋超阳,王衍学,赖俊杰.基于全齿廓的行星齿轮点蚀故障时变啮合刚度计算模型[J].机械传动,2021,45(06):51-57. DOI： 10.16578/j.issn.1004.2539.2021.06.008.

Jiang Chaoyang,Wang Yanxue,Lai Junjie.Calculation Model of Time-varying Meshing Stiffness of Planet Gear Pitting Fault based on Full Tooth Profile[J].Journal of Mechanical Transmission,2021,45(06):51-57. DOI： 10.16578/j.issn.1004.2539.2021.06.008.

摘要

当齿轮产生点蚀故障时，其时变啮合刚度变化导致的振动响应特征是实现点蚀故障诊断的重要依据，而准确的齿轮几何模型对于齿轮时变啮合刚度的计算精度具有重大意义。推导了内、外啮合齿轮的齿廓方程，提出了基于全齿廓的行星齿轮点蚀故障时变啮合刚度计算模型，有效解决了简化模型中需要齿数判断和精度较差的问题，提高了行星齿轮时变啮合刚度计算精度，为行星齿轮点蚀故障的动力学建模、故障机理分析及疲劳寿命分析奠定了理论基础。

Abstract

When a gear has a pitting fault，the vibration response characteristics caused by its time-varying meshing stiffness change is an important basis for the diagnosis of pitting faults，and an accurate gear geometry model is of great significance for the calculation accuracy of the gearing time-varying meshing stiffness. The tooth profile equations of internal and external meshing gears are derived，and a time-varying meshing stiffness calculation model of planetary gear pitting failure based on full tooth profile is proposed，which effectively solves the problem of the need for tooth number judgment and poor accuracy in the simplified model. The calculation accuracy of time-varying meshing stiffness of gear is improved. A theoretical foundation is laid for the dynamics modeling， failure mechanism analysis and fatigue life analysis of gear pitting failure.

关键词

故障诊断全齿廓行星齿轮点蚀故障时变啮合刚度

Keywords

Fault diagnosisFull profilePlanet gearPitting faultTime-varying meshing stiffness

references

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