workbench电机电磁场有限元分析共45页

Workshop
10/1/2004
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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”).
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in this manner.
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Workshop
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ANSYS v9.0
Motor Analysis in the Workbench Environment
Use the Winding Tool Editor to
bring up the “winding details”
and “winding table” panes
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to browse for the file.
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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:
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shown in the red boxes at
right.
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Workshop
10/1/2004
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ANSYS v9.0
Motor Analysis in the Workbench Environment
In the winding details pane, click on the cell to the right of “Center Plane”, then select Plane6 from the tree, then click apply (step 3 at right). This positions/orients the windings so that predefined plane6 is the winding midplane.
bodies except “Solid”. For
example, suppression of the
Enclosure name changed to “Air” Shape: Cylinder Alignment: Automatic Cushion: 8 mm Target: All Bodies Merge Parts?: Yes
Workshop
10/1/2004
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ANSYS v9.0
Motor Analysis in the Workbench Environment
these default values.
Workshop
10/1/2004
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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.
Conductor A: 55 A 0
Conductor B: 55 A 120
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Conductor C: 55 A 240
Workshop
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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
Workshop
10/1/2004
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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
• 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.
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.
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Workshop
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ANSYS v9.0
Motor Analysis in the Workbench Environment
Now click on the Project tab and
choose “New Simulation”
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3 1
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Workshop
4: Click “Apply” 2
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ANSYS v9.0
Motor Analysis in the Workbench Environment
After the winding specifications have been defined, create the winding by right clicking on “Winding” in the tree and left clicking on “Generate” in the drop down list.
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Workshop
3: Click “Apply”
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10/1/2004
9Hale Waihona Puke Baidu
ANSYS v9.0
Motor Analysis in the Workbench Environment
A winding table text file
containing information
describing the rotor coils
(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 “…”
9.0 New Features
Work Bench Environment
Low Frequency Electromagnetic Analysis of Motors
ANSYS v9.0
Motor Analysis in the Workbench Environment
Upon entering the workbench environment, read in the design modeler geometry stored in motor2_base.agdb.
ANSYS v9.0
Motor Analysis in the Workbench Environment
Once the geometry is successfully attached in Design Simulation, define the current and phase angles for conductors A, B, and C as 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 or restored
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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
10/1/2004
Workshop
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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
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10/1/2004
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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.
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
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10/1/2004
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ANSYS v9.0
Motor Analysis in the Workbench Environment
In order to more easily select the
external surfaces of the
modeled domain, suppress all