Application of energy operators for detection of failures in gearboxes

作者：Galezia Adam^*; Guminski Robert; Jasinski Marcin; Maczak Jedrzej

来源：Mechanics Research Communications, 2017, 82: 3-8.

DOI：10.1016/j.mechrescom.2017.02.008

• Teager-Kaiser energy operator
• Gearbox monitoring
• Early stages of faults
• Vibration signal
• Nonstationarities signals
• Fatigue tooth

The paper presents the possibility of detection of early stages of local faults in gears using energy operators. During operation of gearbox, the local faults, such as pitting or tooth base fracture, are causing disturbances in the teeth contacts resulting in creation of local and transient anomalies in a vibration signal. Analysis performed on the diagnostic signal are focused on, as early as possible, detection of such anomalies but also on assess localization of defects and remaining useful life of gears. Methods of signal analysis presented in the paper allow detection of local nonstationarities in the time-domain vibration signal. It is assumed that such transient events are linked to the fatigue tooth damages. Described methods use energetic operators for obtaining diagnostically useful information.

• 出版日期2017-6