EMAG Tutorial 1: Field Surrounding a Permanent...
Transcript of EMAG Tutorial 1: Field Surrounding a Permanent...
EMAG Tutorial 1: Field EMAG Tutorial 1: Field EMAG Tutorial 1: Field Surrounding a
Permanent Magnet
EMAG Tutorial 1: Field Surrounding a
Permanent Magnetgg
Tutorial 1
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Workb
• Objectives: – Define polarization of a
b t t
kbench-Si
bar permanent magnet– Apply flux parallel
boundary conditions to approximate the far field Sim
ulatio
– Post processing: scope the field to individual bodies
– Create section plane to
on Emag
Create section plane to better visualize the field
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S W kb h
kbench-Si
Start Workbench
Simulatioon Em
ag
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The Project Page Loads…
kbench-SiSimulatioon Em
agHold down LMB to drag Geometry into the
Project Schematic
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Workbkbench-Si
Design Modeler GUI
Simulatioon Em
ag
Double Click on Geometry to bring up Design Modeler GUI
Choose “Meter”
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Create a block with the dimension shown kbench-SiSim
ulatioon Emag
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Create a coordinate system using, in order the 3 points shown Set “Export
kbench-Si
order, the 3 points shown. Set Export Coordinate System?” to “Yes”. This coordinate system will be used to
define the direction of polarization.
Simulatio
de e t e d ect o o po a at oYou can rename the coordinate system
name in “Details”.
on Emag
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Create an enclosure – the domain surrounding the PM. It is very important kbench-Si
g yto set “Merge Parts?” to “Yes”.
Simulatioon Em
ag
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Workbkbench-Si
Now might be a good time to save the project as
“PM in air”
Simulatio
PM_in_air
on Emag
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Workbkbench-SiSim
ulatioon Emag
On the Project Page, drag a Magnetostatic Analysis System onto Geometry
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Workbkbench-SiSim
ulatioon Emag
Double click on Model
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Workbkbench-SiSim
ulatio
RMB
on Emag
When Mechanical GUI appears, create a variable in the variable manager named “ansys 230x”, set its value to 1, and check the
“active” box.
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Return to the Project Page and open Engineering Data. From Magnetic B-H
C d t dd
kbench-Si
Curves data source, you can add Neodymium PM to the list of materials
to be included in Engineering Data (the material properties that are
Simulatio
(the material properties that are available in the model).
on Emag
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You can verify that Neodymium PM has been added by choosing
E i i D t d i ti th
kbench-Si
Engineering Data and inspecting the its contents in the Outline Schematic. If you have not already done so, you
should now click “Refresh Project” at
Simulatio
should now click Refresh Project at the top of the Project Page to load
the data into Mechanical. on Emag
Verify
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Workbkbench-Si
Return to the Project and double click on Model to bring up the Sim
ulatio
g pMechanical GUI
on Emag
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It i ft t ibl t
kbench-Si
It is often most sensible to use the Wireframe display mode.
Simulatioon Em
ag
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Choose the solid which is the PM body and change its material kbench-Si
y gassignment to Neodymium PM and
its Coordinate System to “polarization”. Sim
ulatio
The PM body highlights in green on Em
ag
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Make all external surfaces flux parallel kbench-Si
Use Ctrl-LMB to select multiple surfaces Simulatioon Em
ag
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Solve the model (runs in under 1 minute)
kbench-Si
)
Simulatioon Em
ag
After completion, ask for a plot of the total
magnetic flux density RMBmagnetic flux density
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WorkbThe image will
typically be of little
kbench-Si
typically be of little use unless you
request a vector plot representation
Simulatio
representation.
on Emag
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Bring up vector plot controls to adjust
kbench-Si
controls to adjust appearance of plot
Solid
Simulatio
Solid form
on Emag
G idVariable length
Length
Grid aligned
Density
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Length adjustment
Density adjustment
Training Manual
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Workb“Clean” the results
kbench-Si
Clean the results to scope it to the air
body alone. SimulatioRMB on Em
ag
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Choose the single body enclosing the PM and re-evaluate the B field
kbench-Si
PM and re evaluate the B field
Simulatioon Em
ag
RMB
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Insert a section plane, then view
down the z axis to t th l
Simulatio
create the plane
on Emag
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Create a section plot LMB, then drag a line to define the
kbench-Si
section plane
Simulatioon Em
ag
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