[3D2] Industrial case studies on fault diagnosis of rotating machinery via vibration analysis
M Behzad, S Mohammadi, M E Yadegari and P Hejazi Dinan
Vibration analysis plays a crucial role in the early detection of failures in industrial equipment, particularly in rotating machinery. This paper presents four industrial case studies highlighting the process of vibration data acquisition, signal processing, fault detection and post-failure verification. In certain cases, oil analysis, thermography and modal analysis tools are also employed to ensure failure detection. Sharing these real-world experiences with both the academic and industrial communities serves to prevent similar failures and provides a valuable resource for professionals seeking to utilise vibration analysis in detecting comparable issues. One of the case studies involves electrical current leakage in the bearings of a hydro-turbine at an industrial desalination plant, where high-frequency vibrations illustrate a bearing failure. Another example focuses on detecting electrical discharge in the bearings of an electric motor and resolving the problem. Additionally, two cases of resonance detection and looseness identification are discussed and analysed.
