• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2020, Vol. 56 ›› Issue (16): 22-32.doi: 10.3901/JME.2020.16.022

• 仪器科学与技术 • 上一篇    下一篇

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一种数据驱动的旋转机械早期故障检测模型构建和应用研究

王庆锋1,2, 卫炳坤1,2, 刘家赫1,2, 马文生1, 许述剑3   

  1. 1. 北京化工大学高端机械设备健康监控及自愈化北京市重点实验室 北京 100029;
    2. 北京化工大学发动机健康监控及网络化教育部重点实验室 北京 100029;
    3. 中国石油化工股份有限公司青岛安全工程研究院 青岛 266000
  • 收稿日期:2020-02-25 修回日期:2020-04-29 出版日期:2020-08-20 发布日期:2020-10-19
  • 通讯作者: 王庆锋(通信作者),男,1972年出生,博士,副研究员。主要研究方向为设备动态监测、诊断与维护;故障诊断与自愈;在役再制造;装置可靠性与风险评估。E-mail:wqf2422@163.com
  • 作者简介:卫炳坤,男,1995年出生。主要研究方向为故障诊断与健康管理。E-mail:weibingkun0417@163.com
  • 基金资助:
    中国工程院咨询(2020-XY-1)、中国石化科技部研发(319022-1)和重庆市科委技术创新与应用示范(cstc2019jszx-cyzdX0167)资助项目。

Research on Construction and Application of Data-driven Incipient Fault Detection Model for Rotating Machinery

WANG Qingfeng1,2, WEI Bingkun1,2, LIU Jiahe1,2, MA Wensheng1, XU Shujian3   

  1. 1. Beijing key laboratory of Health monitoring and Self-recovery of High-end Machinery Equipment, Beijing University of Chemical Technology, Beijing 100029;
    2. Key Laboratory of Engine Health Monitoring and Networking Ministry of Education, Beijing University of Chemical Technology, Beijing 100029;
    3. Sinopec Qingdao Research Institute of Safety Engineering, Qingdao 266000
  • Received:2020-02-25 Revised:2020-04-29 Online:2020-08-20 Published:2020-10-19

摘要: 传统在线监测系统未能实现早期故障预警,旋转机械状态劣化评估采用固定阈值分级报警方法,存在较多的误报警和漏报警现象,难以指导企业设备预测性维修开展,设备运行安全性、可靠性、利用率难以保障。立足于工程应用,研究基于小波包分解、动态核主成分分析、T2统计分析、Beta分布预警控制限自学习等技术,构建数据驱动基于振动信号分析的旋转机械早期故障检测模型。应用辛辛那提大学智能维修系统中心滚动轴承试验数据和中国某石化公司加氢裂化装置P3409A离心泵轴承“运转到坏”的在线监测振动数据,对构建的设备早期故障检测模型进行验证,结果表明,构建的设备早期故障检测模型,相比传统固定阈值分级报警方法,能够检测滚动轴承早期故障并实现早期故障准确告警,能够有效降低错误报警率和漏报警率。构建的基于振动信号的旋转机械早期故障检测模型,只需要知道监测部件正常运行状态历史数据,无需外部专家支持,实时数据驱动即可实现早期故障检测预警。

关键词: 小波包分解, 动态核主成分分析, 监测统计量, 早期故障检测, 预测性维修

Abstract: The traditional online monitoring system could not realize incipient fault warning, and the fixed threshold grading alarm method which is used to evaluate the machine degradation status exist many false alarms and missed alarms. Excessive false alarm rate and missed alarm rate are difficult to guide the enterprises to carry out predictive maintenance of rotating machinery, and are difficult to guarantee its running safety, reliability and utilization. In order to meet the needs of engineering applications, a data-driven incipient fault detection and warning model has been built based on the technologies such as wavelet packet decomposition (WPD), dynamic kernel principal component analysis (DKPCA), T2 statistical analysis, Beta distribution control limit and so on. The incipient fault detection model has been validated by the rolling bearing vibration data from Center for Intelligent Maintenance Systems (IMS) of University of Cincinnati and by the "run to failure" online monitoring vibration data from P3409A centrifugal pump bearing of PetroChina certain hydrocracking unit. Compared with the traditional fixed threshold grading alarm method, the verified results show that the model can detect the incipient fault of rolling bearings and can realize accurate incipient fault warning, and can reduce the false alarm rate and missed alarm rate effectively. The incipient fault detection and warning model is driven by real-time vibration signals, and it works only need the historical data collected under normal operating status of key components of rotating machinery.

Key words: wavelet packet decomposition, dynamic kernel principal component analysis, monitoring statistics, incipient fault detection and warning, predictive maintenance

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