The unit system for this example problem is shown in the table below.
| Unit System | Metric (mm, tonne, N) |
| Angle | Degrees |
| Rotational Velocity | rad/s |
Material properties of the 3D/2D Model of a Nelson Rotor are shown in the table below.
| Density | 7.85e-009 tonne/mm3 |
| Young's Modulus | 2.0e+005 MPa |
| Poisson's Ratio | 0.3 |
The properties of the point mass (rigid disk) are shown in the table below.
| Mass (X, Y and Z directions) | 1.401e-3 tonne |
| Polar Inertia | 2.0 tonne-mm2 |
| Diametral Inertia | 13.6 tonne-mm2 |
The stiffness properties of the two identical orthotropic bearings are shown in the table below.
| K11 = K22 | 3.503e+004 N/mm |
| K12 = K21 | -8.756e+003 N/mm |