Problem Description

This tutorial uses the results from the model created in the Radial Comb Motor Electrostatic Analysis tutorial. If this tutorial was not completed, use Radial Comb Electrostatic Results.ach in your tutorial models folder.
A new design scenario will be created for the stress analysis, preserving the electrostatic analysis setup.
The beam element part that was deactivated for the prior tutorial must be activated for this one. This part provides the rotor mounting.
The air part that was active for the prior tutorial must be deactivated for this one. The air is not considered for the structural stress analysis.
Both comb parts and the beam element part have a modulus of elasticity of 16,960 dyn/µ² (24.5e6 psi) and a Poisson's ratio of 0.22.
Note: A custom unit system has already been defined, so material properties will be entered in units of dyn/µ² and results will be produced using the same units.
The beam element will be round with a radius of 2 µ.
The ring-shaped back surface of the static comb (Stator) is fixed.
The back node (+Y end) of the axial beam at the center of the rotor has a pinned constraint and also a Y-rotation elastic boundary with a stiffness of 0.35 dyn·µ/radian.
The front node (-Y end) of the axial beam at the center of the rotating comb (Rotor) has a Tx and Tz constraint.
Apply the Coulomb forces that were calculated in the Radial Comb Motor Electrostatic Analysis tutorial.