Browsing by Author "Elasha, Faris"
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Bearing signal separation enhancement with application to a helicopter transmission system
Elasha, Faris; Greaves, Matthew; Mba, David (Article)Bearing vibration signal separation is essential for fault detection of gearboxes, especially where the vibration is nonstationary, susceptible to background noise, and subjected to an arduous transmission path from the ... -
A hybrid prognostic methodology for tidal turbine gearboxes
Elasha, Faris; Mba, David; Master, I.; Togneri, M.; Teixeira, J. A. (Article)Tidal energy is one of promising solutions for reducing greenhouse gas emissions and it is estimated that 100 TWh of electricity could be produced every year from suitable sites around the world. Although premature gearbox ... -
Planetary bearing defect detection in a commercial helicopter main gearbox with vibration and acoustic emission
Elasha, Faris; Greaves, Matthew; Mba, David (Article)Helicopter gearboxes significantly differ from other transmission types and exhibit unique behaviors that reduce the effectiveness of traditional fault diagnostics methods. In addition, due to lack of redundancy, helicopter ... -
A study on helicopter main gearbox planetary bearing fault diagnosis
Zhou, Linghao; Duan, Fang; Elasha, Faris; Corsar, Micheal; Mba, David (Article)The condition monitoring of helicopter main gearbox (MGB) is crucial for operation safety, flight airworthiness and maintenance scheduling. Currently, the helicopter health and usage monitoring system, HUMS, is installed ...