Workshop
10/1/2004
6
ANSYS v9.0
Motor Analysis in the Workbench Environment
In the tree, open the item “1 Part, 5 Bodies” by clicking on the “+” symbol to the left of it. Do the same with the item labeled “part” that appears below it. Note that the single part in the model consists of 5 individual bodies (stator, rotor, magnet1, magnet2, and “solid”).
bodies except “Solid”. For
example, suppression of the
2
to browse for the file.
1
Workshop
3
10/1/2004
10
ANSYS v9.0
Motor Analysis in the Workbench Environment
Once the file is read in, make the following additional changes in the winding details pane:
The image can be dynamically rotated as follows:
1) Position the mouse cursor on the display
2) Hold down the middle mouse button (MMB)
3) Move the mouse cursor
After editing the details, right click on “Air” in the tree. In the drop down list that appears, left click on “Generate”. This will create a cylindrical volume of magnetic domain in which to immerse the imported parts.
2
in this manner.
10/1/2004
Workshop
7
ANSYS v9.0
Motor Analysis in the Workbench Environment
Use the Winding Tool Editor to
bring up the “winding details”
and “winding table” panes
Conductor A: 55 A 0
Conductor B: 55 A 120
1
Conductor C: 55 A 240
Workshop
2
10/1/2004
15
ANSYS v9.0
Motor Analysis in the Workbench Environment
Prepare to define magnetic flux parallel boundaries on the exterior of the modeled domain as shown at right. 2
• FD2: Slot Angle => 22.5
• Clash Detection? => Yes
Setting clash detection to “yes” will bring up another row called “Bodies for Clash Detection” in the winding details pane. Click the cell to the right, highlight “rotor” in the tree, and click Apply. This will trigger a check for interference between the defined windings and the rotor stack.
(winding.txt) is in the local
working directory. Read the
table as shown at right. Click
the cell to the right of “winding
Table File” in the winding
details pane and click on “…”
10/1/2004
Workshop
3
ANSYS v9.0
Motor Analysis in the Workbench Environment
1) Bring up the enclosure tool as
shown at right. This will be used to automatically create a
Workshop
1
2
10/1/2004
2
ANSYS v9.0
Motor Analysis in the Workbench Environment
You should see an end view of the motor geometry. Using the left mouse button (LMB) click on the blue dot adjacent to the triad in the lower right corner of the plot. This should result in the isometric view shown at right.
Right click on “solid” and in the
drop down menu, request that 1 it be hidden in the display.
Note that the display of any
individual bodies may be
either suppressed
Workshop
10/1/2004
13
ANSYS v9.0
Motor Analysis in the Workbench Environment
Now click on the Project tab and
choose “New Simulation”
1
2
Workshop
10/1/2004
14
Workshop
10/1/2004
12
ANSYS v9.0
Motor Analysis in the Workbench Environment
One nice way to visualize the windings is to right click on rotor in the tree and choose “Hide All Other Bodies” in the drop down list. Then, in the tree, click on any of the 6 individual coils comprising the winding (A.1, A.2, B.1, B.2, C.1, C.2). For example, the location of coil A.1 is shown below. 1
2
Workshop
3: Click “Apply”
1
10/1/2004
9
ANSYS v9.0
Motor Analysis in the Workbench Environment
A winding table text file
containing information
describing the rotor coils
1
mesh of the magnetic domain
between and surrounding the
imported geometry
2 2) Note the details that appear in
the lower left pane after this
selection is made. We will edit
these default values.
Workshop
10/1/2004
4
ANSYS v9.0
Motor Analysis in the Workbench Environment
Click on the individual entries in the right hand column of the details pane and edit them as shown below.
1
Workshop
10/1/2004
16
ANSYS v9.0
Motor Analysis in the Workbench Environment
In order to more easily select the
external surfaces of the
modeled domain, suppress all
Enclosure name changed to “Air” Shape: Cylinder Alignment: Automatic Cushion: 8 mm Target: All Bodies Merge Parts?: Yes
Workshop