Make notebooks with Friswell examples about ross HOT 2 CLOSED

With the current state of the code, we can't make some of these examples, here is a list of them:

• Example 5.9.8 (4 pole machine)
• Example 6.2.1(mass eccentricity)
• Example 6.2.2(disk is misaligned with the axis of the shaft by 1°)
• Example 6.3.2(Bent shaft)
• Example 6.3.1(Out-of-balance disk)

Besides that, I've read again the Example 6.2.3(Unbalance response) and I think this one can be made, I'll be working on that.

from ross.

I'm closing this issue since we don't have interest in making the example 6.2.3 right now.

from ross.