•Pre-processing:
–Appropriate element formulation for all
geometries
–Gyroscopic moments generated by rotating
parts
–Bearings
–Rotor imbalance and other excitation forces
–Rotational velocities
–Structural damping
–
•Solution:
–Complex eigensolver for modal
analysis
–Harmonic analysis
–Transient analysis
•Rotordynamics simulation can be performed
in two different reference frames:
–Stationary
reference frame:
•Applies to a rotating structure (rotor) along with a
stationary support structure
•Rotating part of the structure to be modeled must be axisymmetric
–Rotating
reference frame:
•The structure has no stationary parts and the entire
structure is rotating
•Consider only the Coriolis force
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