Diagnosis of Planetary Gearbox Crack Fault based on Torsional Vibration Signal Windowed RMS Time-domain Synchronous Averaging

Wei Wei; Yunpeng Li; Jingyuan Liang

doi:10.16578/j.issn.1004.2539.2021.12.024

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Diagnosis of Planetary Gearbox Crack Fault based on Torsional Vibration Signal Windowed RMS Time-domain Synchronous Averaging

Development·Application | 更新时间：2022-09-15

- Diagnosis of Planetary Gearbox Crack Fault based on Torsional Vibration Signal Windowed RMS Time-domain Synchronous Averaging
- Journal of Mechanical Transmission Vol. 45, Issue 12, Pages: 150-154(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
  2.西安交通大学机械工程学院，陕西西安 710049
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2021.12.024
  CLC：
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魏伟,李云鹏,梁景源.基于扭振信号加窗RMS时域同步平均的行星齿轮箱裂纹故障诊断[J].机械传动,2021,45(12):150-154.

Wei Wei,Li Yunpeng,Liang Jingyuan.Diagnosis of Planetary Gearbox Crack Fault based on Torsional Vibration Signal Windowed RMS Time-domain Synchronous Averaging[J].Journal of Mechanical Transmission,2021,45(12):150-154.
魏伟,李云鹏,梁景源.基于扭振信号加窗RMS时域同步平均的行星齿轮箱裂纹故障诊断[J].机械传动,2021,45(12):150-154. DOI： 10.16578/j.issn.1004.2539.2021.12.024.

Wei Wei,Li Yunpeng,Liang Jingyuan.Diagnosis of Planetary Gearbox Crack Fault based on Torsional Vibration Signal Windowed RMS Time-domain Synchronous Averaging[J].Journal of Mechanical Transmission,2021,45(12):150-154. DOI： 10.16578/j.issn.1004.2539.2021.12.024.

摘要

行星齿轮箱具有结构紧凑、传动效率高、运行平稳等优点，被广泛应用于关键机械装备中。由于恶劣的工作环境，行星齿轮箱易产生齿根裂纹故障损伤且不易被识别，易造成安全隐患。扭转振动信号理论上不受行星架旋转引入的路径调制影响，相比于传统研究中的横向振动信号具有很大的优越性，频率成分简单，易于提取故障特征。为此，以扭振信号为分析对象，提出了一种加窗RMS（Root meam square）时域同步平均技术，实现行星齿轮箱的早期齿根裂纹故障诊断；并搭建故障模拟试验台，验证了该方法的有效性。

Abstract

Planetary gearboxes have the advantages of compact structure，high transmission efficiency，stable operation，etc.，and are widely used in heavy loads and key mechanical equipment. Since planetary gearbox often works in harsh environment，its key components are prone to tooth root crack fault damage and are not easy to be identified，easy to cause security risks. Compared with traditional transverse vibration signal，torsional vibration signal is not affected by the modulation of time-varying transmission path in theory，it has great advantages，so its frequency component is simple and it is easy to extract fault features. Taking torsional vibration signals as the analysis object，a windowed RMS time-domain synchronous averaging technique is proposed to realize the early tooth root crack fault diagnosis of planetary gearbox，and a fault simulation test bed is built to verify the effectiveness of the method.

关键词

行星齿轮箱齿根裂纹扭振信号时域同步平均加窗RMS

Keywords

Planetary gearboxTooth root crackTorsional signalTime-domain synchronous averagingWindowed RMS

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