1. 
Introduction 
2. 
Theoretical
background 

2.1 
Calculating the loadcarrying
capacity 

2.2 
Obtaining the required
direction for the lines of force 

2.3 
Calculating the loadcarrying
capacity for a sinusoidal surfacecurrent density 
3. 
Active magnetic
bearings 

3.1 
The magnetic
configurations 

3.2 
Calculation of the radial
loadcarrying capacity 

3.3 
Calculation of the length
width ratio of the rotor 
4. 
Dynamic stability
of the control loops 

4.1 
Control with displacement
feedback 

4.2 
Control with velocity
feedback 
5. 
Dynamic stability
of the rotor 
6. 
Summary 