|Smoke and Mirrors: Ultra-Rapid-Scan FT-IR
The bending moments generated by a centrifugal field can be readily
visualized. For the case of the tilted disk, the forces tend to bend the disk back to
flatness. There is also a thinning of the center of the disk which couldnt be seen
in the deformation slide because it was obscured by bending. The moment of the flat tilted
disk also produces undesirable bearing loads. If the back surface of the disk is tilted
out by an amount equal to the front, the bending moments will cancel, and in the next
slide the thinning effect will be visible.