EMAG – Low- to Medium-Frequency Electromagnetic Simulation

EMAG is the low- to medium-frequency electromagnetic simulation module in EMWORKS. It is used to analyze fields, losses and forces in 2D and 3D models of devices such as electrical machines, actuators, sensors and transformers, in applications across automotive, aerospace, biomedical and power systems.

EMAG Overview

EMAG performs low- to medium-frequency electromagnetic field analysis on 2D and 3D models such as motors, actuators, transformers, and sensors. It handles coils, permanent magnets, conductors, and ferromagnetic parts in full 3D or 2D/axisymmetric setups, with optional parametric sweeps and thermal or structural coupling. Results include fields, flux density, current density, losses, forces, and torques over the geometry for direct comparison of design options.

EMAG Analysis Options

EMAG supports static, AC, and transient studies in 2D and 3D, covering electric and magnetic fields, eddy currents, forces, and losses for devices such as electrical machines, actuators, sensors, and transformers.
Magnetostatic Analysis

Magnetostatic Analysis

Calculates DC magnetic fields, forces, flux paths, and saturation levels.

Conduction Analysis

Conduction Analysis

Evaluates steady-state current flow and resistive behavior in conductive materials.

Electrostatic Analysis

Electrostatic Analysis

Computes electric field distribution under static voltage and charge conditions.

AC Magnetic Analysis

AC Magnetic Analysis

Solves sinusoidal magnetic fields and frequency-dependent electromagnetic effects.

Transient Magnetic Analysis

Transient Magnetic Analysis

Analyzes time-varying magnetic fields driven by switching waveforms or pulse excitations.

AC Electric

AC Electric

Models alternating electric fields in conductive and dielectric media.

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Use EMAG to analyze electromagnetic fields, losses, and forces on your 2D and 3D designs with CAD-based workflows.

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Multiphysics Coupling

EMAG couples electromagnetic analysis with motion, structural, and thermal solvers for devices where fields interact with mechanics and temperature.

Motion Coupling

Motion Coupling

Couple electromagnetic fields with motion to compute force and torque vs position or time in motors, actuators, solenoids, relays and magnetic devices.

Structural Coupling

Structural Coupling

Map electromagnetic forces and losses to structural and thermo-mechanical analysis to evaluate displacement, stress, strain and safety factors.

Thermal Coupling

Thermal Coupling

Link electromagnetic losses to steady-state or transient thermal analysis to compute temperature, gradients and heat flux, with optional temperature-dependent EM properties.

Circuit Coupling

Circuit Coupling

Circuit Coupling in EMWORKS integrates the 3D electromagnetic model with an electrical schematic. This two-way interaction accurately simulates devices like motors and transformers under transient and steady-state conditions, capturing effects such as back-EMF and saturation.

EMAG Applications

EMAG is used on a wide range of low- and medium-frequency electromagnetic problems in electrical machines, power electronics, and power systems.
emag application

Motors and Generators

Analyze torque, cogging, core and copper losses, and demagnetization in permanent-magnet,induction, and synchronous-reluctance machines for steady-state and transient operating points.
emag application

Transformers and Inductors

Compute flux distribution, saturation, leakage inductance, core losses, and stray fields in single- and three-phase transformers, chokes, and inductors, including different core materials and winding layouts.
emag application

Busbars and Power Distribution

Evaluate DC and AC current distribution, skin and proximity effects, electromagnetic forces, and joule losses in busbars, switchgear, and high-current connections, with optional thermal coupling for temperature rise.
emag application

Actuators and Solenoids

Predict forces, strokes, and response times for solenoids, relays, contactors, linear actuators, and position or speed sensors based on detailed coil, core, and air-gap geometry.
emag application

Eddy-Current NDT

Model probes, cracks, and conductive targets to study signal changes in eddy-current testing, or compute braking torque and heating in eddy-current brakes and dampers.
emag application

Power Cables and High-Current Conductors

Simulate electric and magnetic fields, insulation stress, losses, and temperature in LV/MV/HV power cables, bus ducts, and large conductors, including effects of layouts, shields, and proximity to other structures.
See more examples on the all EMAG applications page, including wireless power transfer, magnetic gears, magnetic bearings, shielding, MRI and gradient coils, and other specialized low- and medium-frequency designs.
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EMAG Main Features

Modeling and Study Options

EMAG supports 3D, 2D and axisymmetric models as well as parametric studies, so you can choose the appropriate model fidelity and systematically explore design variations.

3D Electromagnetic Field Simulation

Analyze electric and magnetic fields in full 3D geometry to study detailed field distributions and device behavior.

2D and Axisymmetric Models

Use planar and axisymmetric models to reduce computation time while capturing the main electromagnetic effects.

Parametric Studies

Vary geometry, materials or operating conditions to compare design options and understand how key parameters influence performance.
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