10/31/2014

Rotordynamics with ANSYS Mechanical Solutions

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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