Monitoring methods to identify damaged, cracked and worn rotating machine components

Abstract

The latest methods, new developments and modern recommendations regarding monitoring of the loose stationary parts (such as loose foundation bolts), the loose rotating parts, the problematic (or worn) bearing, and the cracked rotor using the vibrational data are described. Practical notes and concepts are presented for engineers to quickly understand the key impacts and consequences without numerous graphs and complex mathematics. Three case studies based on the actual field data are also discussed.

Keywords:

• Cracked rotor
• bearing
• loose part
• vibration

Additional information

Notes on contributors

A Almasi

Amin Almasi is a rotating machine consultant in Brisbane, Australia. He is chartered professional engineer of Engineers Australia (MIEAust CPEng – Mechanical) and IMechE (CEng MIMechE). He has a MSc and BSc in mechanical engineering and is a Registered Professional Engineer in Queensland. He specialises in rotating machines, including centrifugal, screw and reciprocating compressors, gas turbines, steam turbines, engines, pumps, subsea, offshore rotating machines, LNG units, condition monitoring, and reliability. Amin is an active member of Engineers Australia, IMechE, ASME, CMVI, Vibration Institute, SPE, IEEE and IDGTE. He has authored more than 60 papers and articles dealing with rotating equipment, condition monitoring, offshore, subsea and reliability.