Wheel bearing fault diagnosis and monitoring for automobiles are getting more attention as the market shifts towards electric vehicles (EV) autonomous (AV). Electric drivetrains expected to have longer lifespan than reliable life of low-cost wheel designs. The probability having a failed in an EV thus increases. In AV setting, most rides taken by people who unfamiliar vehicle, removing human vi...

This paper investigates the fault detection of a micro parallel plate capacitor subjected to nonlinear electrostatic force. For this end Thau observer, which has good ability in fault detection of nonlinear system has been presented and governing nonlinear dynamic equation of the capacitor has been presented. Upper and lower threshold for fault detection have been obtained. The robustness of th...

An investigation into the vibration characteristics of a ‘Roots and Claws’ based dry vacuum pump under different operating conditions was conducted. An AutoRegressive (AR)-based condition monitoring algorithm was developed and tested on both a fault-free and a pump with an implanted ceramic bearing with an inner race defect at the High Vacuum (HV) end. The investigation provided some in-depth u...

Bearing failures are the most frequent causes of breakdowns in rotating machinery. Different levels severity these exhibit distinct fault characteristics vibration signal. This paper presents a bearing diagnosis method that considers different levels, involving selection statistics detection index symptom parameter and application canonical discriminant analysis (CDA). Initially, kurtosis is em...