Centrifugal Pumps

Centrifugal pumps are hydraulic machines, which consist usually of rotating elements (e.g., pump impeller, bearings, electric motor) and stationary elements (volute/casing, diffuser, stay/guide vanes, and housing bearing), which can generate fault frequencies from mechanical and hydrodynamic sources. Mechanical sources are generated by the rotation of unbalanced masses and friction in the bearings. Hydrodynamic vibration, on the other hand, is usually caused due to flow disturbances, generated by the interaction of the rotor blades, particularly with the volute and / or guide vanes.

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