Dynamics Simulation Analysis of Tooth Root Crack Fault of Planetary Gearbox based on Torsional Vibration Signal

Wei Wei; Yunpeng Li; Yanshuai Yang

doi:10.16578/j.issn.1004.2539.2021.10.026

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Dynamics Simulation Analysis of Tooth Root Crack Fault of Planetary Gearbox based on Torsional Vibration Signal

Development·Application | 更新时间：2022-11-10

- Dynamics Simulation Analysis of Tooth Root Crack Fault of Planetary Gearbox based on Torsional Vibration Signal
- Journal of Mechanical Transmission Vol. 45, Issue 10, Pages: 164-169(2021)
- 作者机构：
  
  1.机械科学研究总院青岛分院有限公司，山东青岛 266000
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2021.10.026
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魏伟,李云鹏,杨衍帅.基于扭转振动信号的行星齿轮箱齿根裂纹故障动力学仿真[J].机械传动,2021,45(10):164-169.

Wei Wei,Li Yunpeng,Yang Yanshuai.Dynamics Simulation Analysis of Tooth Root Crack Fault of Planetary Gearbox based on Torsional Vibration Signal[J].Journal of Mechanical Transmission,2021,45(10):164-169.
魏伟,李云鹏,杨衍帅.基于扭转振动信号的行星齿轮箱齿根裂纹故障动力学仿真[J].机械传动,2021,45(10):164-169. DOI： 10.16578/j.issn.1004.2539.2021.10.026.

Wei Wei,Li Yunpeng,Yang Yanshuai.Dynamics Simulation Analysis of Tooth Root Crack Fault of Planetary Gearbox based on Torsional Vibration Signal[J].Journal of Mechanical Transmission,2021,45(10):164-169. DOI： 10.16578/j.issn.1004.2539.2021.10.026.

摘要

基于振动的分析方法在行星齿轮箱齿根裂纹故障诊断中得到了广泛的应用。与传统的横向振动信号相比，扭转振动信号理论上不受时变传递路径的调制影响；其频率成分简单，易于提取故障特征。对动力学模型中提取的扭转振动信号进行分析，实现了齿根裂纹故障诊断。建立了健康行星齿轮箱的刚柔耦合模型并进行了验证；基于健康行星齿轮箱的模型，建立了3种构件的裂纹故障模型，提取了故障行星齿轮箱的动态响应信号；通过分析横向振动信号和扭转振动信号来诊断齿根裂纹故障。结果表明，采用扭转振动信号诊断行星齿轮箱轮齿裂纹故障是可行的，其相比传统的横向振动信号更具优越性。

Abstract

The vibration-based methods have been widely used in the tooth root crack fault diagnosis of planetary gearbox. Compared with traditional transverse vibration signal，torsional vibration signal is not affected by the modulation of time-varying transmission path in theory，so its frequency component is simple and it is easy to extract fault features. The torsional vibration signal extracted from dynamic model is analyzed to realize the fault diagnosis of tooth root crack fault. Firstly，the rigid-flexible coupling model of healthy planetary gearbox is established and verified. Then，based on healthy planetary gearbox model，three typical crack fault models are established，and the dynamic response signals are extracted. Finally，tooth root crack fault is diagnosed by analyzing transverse vibration signal and torsional vibration signal. The results show that torsional vibration signal is feasible to diagnose planetary gearbox crack fault，and has more advantages than traditional transverse vibration signal.

关键词

刚柔耦合模型齿根裂纹故障扭振信号

Keywords

Rigid-flexible coupling modelTooth root crack failureTorsional signal

references

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