A fault feature extraction method for rotor rubbing based on load identification and measured impact response

摘要：

Rotor rubbing is a common fault of rotating machinery, and usually induced by other faults, such as bending, clearance, unbalance and so on. The essential characteristic of this fault is the impact and friction between rotor and stator, so this paper puts forward a method for representing the rubbing fault by identifying the suffered dynamic load of rotor and stator.The basic formula of load identification is built, and the measured impact response is used to replace the system real impulse response function.The experiment results show that the proposed method can effectively extract the impact components of rotor and stator, and detecting stator vibration signal is more effective to represent rubbing fault than that of rotor, and the analysis result has clear credibility.Meanwhile, the proposed method is convenient for practical engineering application.

关键词： Rotor rubbing Load identification faults feature extraction impact response

作者: Li Yungong Zhang Jinping Wang Liqiang Chen Yang

作者单位: School of Mechanical Engineering & Automation,Northeastern University,Shengyang 110819,China School of Mechanical Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China

会议类型: 国际会议

会议名称: International Conference on Advances in Engineering 2011(2011年工程研究进展国际学术会议 ICAE2011)

会议地点: 南京

会议语种:英文

页码: 793-797

在线出版日期: 2011-12-17（万方平台首次上网日期，不代表论文的发表时间）