Introduction to rotordynamics and lubricated elements

Turbomachinery

A turbomachinery is a rotating structure where the load or the driver handles a process fluid from which power is extracted or delivered to.

Fluid film bearings (typically oil lubricated) support rotating machinery, providing stiffness and damping for vibration control and stability. In a pump, neck ring seals and inter stage seals and balance pistons also react with dynamic forces. Pump impellers also act to impose static and dynamic hydraulic forces.

Acceptable rotordynamic operation of turbomachinery:

Ability to tolerate normal (even abnormal transient) vibrations levels without affecting TM overall performance (reliability and efficiency)

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Introduction to rotordynamics and lubricated elements

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