An energy operator approach to joint application of amplitude and frequency-demodulations for bearing fault detection ☆

摘要: Bearings are among the most frequently used components. Bearing failure could lead to complete stall of a mechanical system, unpredicted productivity loss for production facilities or catastrophic consequence mission-critical equipment. As such, bearing fault detection and diagnosis is an imperative part preventive maintenance procedures. This paper presents parameter independent yet simple implement technique. The Teager energy operator tailored extract both amplitude frequency modulations vibration signals measured from systems. incorporation modulation information into proposed method has eliminated need interference removal steps. demodulation (AD) also inherent in operator, can be detected spectrum energy-transformed signal. effectiveness been validated using simulated experimental data.