simon motor-test-by-cst-studio-suite-2014
TRANSCRIPT
The software used is CST STUDIO SUITE 2014.
Here is how the model looks
Dimensions are in meters. All magnets are taken to have relative permeability 1.1 and remanence B=1.4 T,
which approx. corresponds to N33 grade NdFeB magnets.
Figure 1 The inner magnet highlighted
Figure 2. The middle magnet highlighted
Figure 3. The outer magnet highlighted
The geometry is parameterized with the following parameters:
The parameters are ordered by radii.
innerR1 - Inner radius of the Inner magnet
innerR2 - Outer radius of the Inner magnet
innerR3 – Outer radius of the plurality of magnets around the Inner magnet.
…
h – Height of the model
Figure 4 Magnetization vectors for arrays of magnets
Figure 5. Magnetization of the Inner magnet
Figure 6. Magnetization of the Middle magnet
Figure 7. Magnetization of the Outer magnet
Figure 8. Meshed model
Notice “Comp. forces on groups of touching shapes” above. If 2 bodies touch, they are treated as a single
body. Forces acting on such bodies are summed up and reported as a single force exerted to one body.
Below is the full text from the screenshot above (we computed forces and torques only at one angle of
rotation).
Settings for force and torque calculation:
Coordinate system for torque axis and origin: Global
-------------------------------------------------------------------------------------
Torque axis origin:
Global coordinates:
x: +0.000000
y: +0.000000
z: +0.000000
-------------------------------------------------------------------------------------
Torque axis:
Global coordinates:
x: +0.000000
y: +0.000000
z: +1.000000
-------------------------------------------------------------------------------------
The following objects are equivalent to background material and will be ignored:
zero force objects =
-------------------------------------------------------------------------------------
force object group 1 =
component1:solid2
component1:solid2_1
component1:solid2_2
component1:solid2_3
component1:solid2_4
component1:solid2_5
component1:solid2_6
component1:solid2_7
component1:solid2_8
component1:outer
component1:solid2_9
Fx: -5.5213e+005 N
Fy: +2.9436e+005 N
Fz: +6.9208e+004 N
|F|: +6.2951e+005 N
Torque: +9.0675e+008 Nm
-------------------------------------------------------------------------------------
force object group 2 =
component1:solid1
component1:solid1_1
component1:solid1_2
component1:solid1_3
component1:solid1_4
component1:solid1_5
component1:solid1_6
component1:solid1_7
component1:solid1_8
component1:inner
component1:solid1_9
Fx: +3.9693e+005 N
Fy: +4.2547e+005 N
Fz: -1.3155e+005 N
|F|: +5.9656e+005 N
Torque: -9.4417e+008 Nm
-------------------------------------------------------------------------------------
force object group 3 =
component1:middle
Fx: -1.4974e+005 N
Fy: -1.9314e+005 N
Fz: +7.4248e+005 N
|F|: +7.8166e+005 N
Torque: +4.3287e+006 Nm