ProductsFEA Software for Electromechanical DesignJMAGDesigner [Geometry Modeling]

Linking to CAD Systems
In addition to importing CAD models, changes can be made to the geometry within a CAD system while preserving conditions settings from JMAG. Change the geometry and immediately implement analysis calculations, skipping the step of resetting conditions. This means a dramatic improvement in the efficiency of analysis work using CAD.
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JMAG Function Videos

Geometry Modeling Updated
A specialized geometry modeler made specifically to create JMAG analysis models. CADlike operations enable easy geometry modeling in either 2D or 3D.
JMAG Function Videos

Transformer Template
Find specialized templates for compact transformers and reactors.
Easily create combinations using manufacturersupplied core geometries, bobbins and coils.
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Motor Template
Select one of the default templates and define the analysis model simply by entering design parameters like the number of slots, motor diameter or coil pattern.
You can create userdefined templates.
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Coil End Modeling
You can create using the coilend geometry template. Create geometries virtually identical to actual winding just by entering parameters. This enables greater accuracy in accounting for the impact of flux leakage coming from coil ends and joule loss from coils. And you can also use this for more precise coil inductance evaluations.
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Section analysis
A 2D analysis can be run directly from a 3D analysis model by automatically taking out a section from the 3D model. This feature is useful particularly for a motor analysis that uses both 2D and 3D analyses. It also allows existing 3D CAD models to be used for 2D analysis without having to manually create a separate 2D model.
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MultiSlice Method
Enabled a highspeed calculation for 2D model incorporating 3D effect. Recalculation by the multislice method is possible based on the existing 2D data.
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Gap / Insulation
Gap
This is a condition for doing settings without generating mesh for small magnetic spaces.
For example, when building a core from multiple divided cores, narrow spaces are produced between them. These spaces create strong magnetic resistance, so it is desirable to generate a mesh for the spaces in order to do accurate analysis. However, generating mesh in small spaces causes a huge increase in the number of mesh elements, requiring a lot of calculation time. This can also lead to a degradation of the ICCG convergence due to mesh breakdown.
Using this condition makes it possible to express the magnetic resistance without creating mesh for the spaces.
Below, for the center gap of a reactor, the coil magnetic flux is evaluated using this condition with a gap length varied from 0.1 mm to 2 mm without creating mesh in the gap. Easy magnetic flux evaluation is possible using JMAGDesigner's case control.
Relationship between gap length and magnetic flux
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Insulation
Similar to the Gap condition, this is a condition that expresses magnetic resistance without modeling spaces created in cores and magnets.
For example, magnets are sometimes divided in order to reduce eddy currents, but if mesh is generated for the spaces, it takes a lot of work to create the model when the number of magnet divisions has to be changed.
With this condition, just by setting the number of division planes or by checking the box for insulation in the part, electrical insulation can be modeled. Precise eddy current evaluation can be done easily because it is not necessary to change the mesh.
Evaluation of eddy current reduction by magnet division
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Eccentricity
In JMAG, simple rotation and translation motion can be used without any particular restrictions. Change things like the number of rotations or speed for each specified interval, as well as motion type and constant speed. And through the equation of motion you can define motion that changes position moment to moment from the electromagnetic force calculated in magnetic field analysis. In such cases, you can also set external loads such as load torque and friction torque at the same time. And you can also handle even more complicated forms of motion.
Motion including eccentricity
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Geometry Model Diagnosis
Verify whether or not geometry can be used for mesh generation when geometry is created. Speed up your workflow through verifying if mesh can be generated for geometry at earlier stage.

Geometry Scale
 The geometry scale can be adjusted from the geometry editor window
 The scale no longer needs to be adjusted prior to importing geometry
 Basic shapes, regions and parts can be expanded and shrunk based on arbitrary points that include the origin
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Scaling of Geometry 

Geometry Library
 A library that has basic 2D and 3D geometries
 Geometry can be created by simply entering geometry parameters, eliminating the need to create sketches and set features
 Boxes, spheres, cylinders, cones, prisms, tori, and spirals for 3D geometry are supported
 Rectangles, polygons, circles, and ellipses for 2D geometry are supported
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Wire Template
 Wires inside a slot can be easily created for an iron loss or leakage inductance analysis by setting parameters
 Specify the diameter, placement, skin depth, and geometry of the wire
 Automatically calculate the fill rate
Example of creating a φ1mm wire
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