JMAG-Express

JMAG-Express is a tool to support motor design.
Template based, conceptual design can be carried out with it. It can also easily link with JMAG-Designer for detailed design.
It can export motor models (JMAG-RT models) at any stage, allowing SILS and HILS to be done.

Functions

Freely define geometry templates

  • Templates for PMSMs, induction motors, brush motors, and universal motors have all been prepared.
  • You can add geometries created in JMAG-Designer as templates.
  • Use JMAG-Designer for brush motors and universal motors.

Built-in database

  • You can search for model data by design parameters, output, and design date from a wealth of design proposals.
    E.g. Searching for model data where the slot combination is 4 poles and 24 slots
    – Search model data where the average torque is over 3 Nm
    – Search model data that was calculated on May 25, 2012

Geometry sizing

  • JMAG-Express will recommend a geometry and drive conditions if you simply enter the minimum output expected of the motor.
  • Of course, you can also narrow down the geometry and drive conditions by entering more information.

An extensive material database

  • JMAG-Express has approximately 730 types of characteristics data built-in, just like JMAG-Designer.
  • Precise material designs are completed by selecting the material name.

Parametric Analysis

  • Geometry, materials, windings, and drive conditions can be entered as parameters, which enables characteristics evaluations.
  • Multiple designs can be easily compared.

Running the analysis remotely

  • You can use an external calculation server.
    E.g. When there are a lot of analysis cases

Saving and reading setting parameter files

  • You can save setting parameter files separately from geometry data.
  • This should come in handy during system automations like linking with opimization softwares.

JMAG Function Videos

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JMAG-Express Quick mode

JMAG-Express allows calculation of basic motor properties in one second.
Just by entering the geometry template, materials, winding, and drive conditions as parameters, you can obtain the induced voltage constant, torque constant, inductance properties, current vs. torque properties, revolution speed vs. torque properties, iron loss/copper loss properties, etc. in a split second. When the desired power (W) is specified, the size and comparative loading needed to achieve it are calculated automatically.

JMAG-Express screen

Quick Mode results screen

Features

Evaluate basic motor properties by simply entering parameters
  • Just enter the geometry template, materials, winding, and drive conditions as parameters.

JMAG-Express screen

Geometry Modeling

Material Designs

Coil Settings

Drive Conditions

Evaluate torque, efficiency, loss, and inductance properties with a graph or numerically
  • Revolution speed vs. torque properties, iron loss/copper loss properties, etc. are instantaneously displayed in a graph.
  • Motor properties can be viewed in a machine constant table.

Properties Graph

Machine Constant Table

Correspondence list

Target motor Output
PMSM
IM
Externally excited synchronous machine
Simple calculation
  • Speed-Torque curve
  • Torque/efficiency
  • Copper loss/iron loss
  • Inductance
  • Voltage
  • Magnetomotive force distribution
SRM
Simple calculation
  • Speed-Torque curve
  • Torque/efficiency
  • Copper loss/iron loss
  • Inductance
  • Voltage
Brush motor
Simple calculation
  • Speed-Torque curve
  • Torque/efficiency
  • Copper loss/iron loss
  • Voltage
Wound-field AC synchronous machine
Simple calculation
  • No-load saturation curve (OCC) / three phase short circuit curve (SCC) / gap line (AGL) / zero-power-factor full load saturation curve (ZPF)
  • phasor diagram

From January 2019, JMAG-Express sales ended.
However, users with a contract are still be able to continue to use it.