TryItNow! ANSYS AIM
Step by Step Walkthrough:
Magnetic Relay
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© 2015 ANSYS, Inc.
August 29, 2016
ANSYS Confidential
Step by Step Walkthrough:
Magnetic Relay
ANSYS designed this TryItNow! experience to give you quick
access to ANSYS AIM simulations on the cloud.
This AIM demonstration shows a magnetostatic simulation of an
electrically operated switch relay. The simulation demonstrates
the ease of setting up and solving a magnetostatic simulation
using an adaptive solution and computing the magnetic force on
the armature.
Default settings are used to highlight ease-of-use and to
demonstrate how AIM automates many of the steps required for
the magnetostatic simulation.
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© 2015 ANSYS, Inc.
August 29, 2016
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Background Information
A relay is an electrically operated switch. In this
example we will consider a simple electromagnetic
relay consisting of a coil of wire wrapped around
an iron core, an iron yoke and a movable iron
armature. When a DC electric current is passed
through the coil it generates a magnetic field,
which creates a magnetic force that moves the
armature. The motion of the armature then will
either make or break the electrical connection.
The demonstration presented here is for a
magnetostatic analysis of a relay. We will apply a
direct current of 20 Amps-turns to the coil to
create a magnetic force in the armature. Results
quantities of interest are the current density in the
coil, the magnetic flux density in the iron
components, and the magnetic force in the
armature.
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© 2015 ANSYS, Inc.
August 29, 2016
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Select the Magnetics Template
Select the “Fluid-Structure
Interaction”
Select thetemplate.
“Magnetics”
template
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Modify Template Settings
1. Turn off the inductance
calculation.
2. Turn on the force calculation.
3. Select Create Simulation Process
and select relay_geometry.scdoc
as the geometry.
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August 29, 2016
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Specify Material
2. Add a Material Assignment.
3. Choose Air as the
material.
1. Select the Physics task.
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August 29, 2016
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Specify Material
1. Make sure the Body
Selection filter is
selected.
2. Choose the enclosure
as the Location.
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August 29, 2016
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Specify Material
1. Select the enclosure.
2. Right-click and select
Hide Body.
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August 29, 2016
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Specify Material
1. Create a new
Material Assignment.
2. Choose Copper as
the material.
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3. Select the body
highlighted in blue as
the Location
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Specify Material
1. Create a new Material
Assignment.
3. Choose the 3 volumes
highlighted in blue.
2. Use the drop-down
arrow to Create a new
Selection Set
4. Name the Selection
Set Steel Assignment.
5. Choose Steel 1010 as
the Material.
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August 29, 2016
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Specify Physics Conditions
2. Under Location, choose
the body shown in blue.
1. Open Force Computation
under Physics Settings.
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August 29, 2016
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Specify Physics Conditions
1. Create a Terminal by going
to Electromagnetic Conditions
> Add > Terminal.
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August 29, 2016
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Setup Terminal
3. Specify the Number of
conductors to be 200.
1. Select the face shown
in blue as the Location.
2. Use the filter to select
the correct face.
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August 29, 2016
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Setup Winding
1. Create a Winding from the
Electromagnetic Conditions menu.
3. Specify the
Operating current to
be 0.1A.
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August 29, 2016
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2. Specify Terminal 1
to be the Terminal.
Solve Physics
1. Update the
Physics.
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August 29, 2016
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Review Convergence
2. Right-click and Show
All bodies.
1. Review the
Solution
Monitors to
monitor
convergence.
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August 29, 2016
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Results
2. Add a Vector result.
1. Select Results task.
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August 29, 2016
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Results
1. Choose the enclosure
as the Location.
2. Specify Magnetic Flux
Density as the variable.
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August 29, 2016
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Results
1. Create a new Contour,
and name it Magnetic
Flux Density.
2. Choose the Steel
Assignment as the Location.
3. Specify Magnetic Flux
Density magnitude as
the variable.
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August 29, 2016
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Results
1. Create a new Contour
and name it Current
Density.
2. Choose the volume
shown in blue as the
Location.
3. Specify Current
Density magnitude as
the variable.
4. Evaluate results.
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© 2015 ANSYS, Inc.
August 29, 2016
ANSYS Confidential
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© 2015 ANSYS, Inc.
August 29, 2016
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