It is now simple to be precise
JMAG is a comprehensive software suite for electromechanical design and development.
Powerful simulation and analysis technologies provide a new standard in performanceand quality for product design.
Capture complex phenomena and gain valuable insights.

About JMAG
JMAG is simulation software for electric device design and development. It accurately models thecomplex electromagnetic phenomena in a wide range of equipment.
Since being released in 1983, JMAG has been used in industries and universities world-wide andhas contributed to the development of thousands of products. Continuous communication with
our users has made JMAG a world class analysis tool.
It is our wish that JMAG continues to grow and develop with its users.

Applications

Analysis Functions

Industries

Interface●

MotorsGenerators● Transformers● Reactors● Solenoids● Actuators●

Magnetics
Electrostatics● Structural● Thermal● Multiphysics●●

Automobiles
Household appliances● Digital equipment● Factory automation● Electrical equipment● Educational institutions

●

●

●

etc.

02

Major CAD systems● Drive/control simulators● Optimizers● Other CAE tools

JMAG Advantages
Accurate
Fast
JMAG is the fastest electromagnetic finite element
analysis program available.
Incredible speed has facilitated analyses oflarge-scale models that were impossible before.
This analysis speed allows you to accurately model
complex phenomena as well as perform detailed
parametric analyses with hundreds or eventhousands of cases. Analysis time is reducedt h r o u g h a co m b i nat i o n o f b e t te r s o f t w a r e
operating on more powerful hardware. JSOL isconstantly updating and improving its solvers aswell as working with hardware manufactures totake advantage of the latest computational
methods.

JMAG is capable of analyzing and quantifying
phenomena that were once only observable
during real-world testing. Virtual modelingallows you to dig deeper into the phenomena
and explore more detail about the design.
Vir tual testing can also eliminate design
problems ahead of production, which cansignificantly reduce testing costs.
Through customer feedback and internal
testing, JMAGʼ s accuracy is constantly tested
and challenged in some of the mostdemanding electromagnetic applications.

Open Interface
High-Productivity
Results obtained using a large-scale model andfrom a large volume of parametric calculations
can be stably and reliably file transferred andimported, allowing stress-free evaluation of theresults.
JMAG contributes to the efficiency of analysis
work by improving the performance of a series ofanalysis workflows from geometry creation andcondition settings to results evaluation.

The Electromagnetic Analysis domain is only oneof many domains that customers work within. A
typical device analysis includes everything fromnoise and vibration simulations to circuit andcontrol models. Each analysis domain has multiple
programs that can create simulations within thatdomain. JSOL recognizes that each user has
preferences on what programs work best for theirmodel. JSOL has built partnerships with many ofthe leading software analysis programs so thatJMAG users can work with programs that they are
most comfortable with. This freedom allows JMAG
users to seek out the best possible results acrossmultiple analysis programs.
03

JMAG Simulation Technology

SolverSolver speed is directly related to model accuracy and reliability. Finite element analysis comes
down to solving very large matrices. JSOL has developed advanced techniques to solve thesematrices faster and produce more consistent results.
JMAG users have some of the most advanced solver algorithms at their fingertips, and can becertain that JSOL will continue to adopt the latest calculation architecture within JMAG.

Parallel Computing
High speed processing and scalability are the two main goals of parallel processing. JMAG
supports both shared and distributed memory processing and can incorporate the graphics
processing unit (GPU) into calculations.
From the desktop to clusters and cloud computing, JMAG's parallelization technologies canbe used in a wide range of environments. Utilizing these architectures means that analyses
with over 10 million elements as well as models with hundreds of thousands of elements canbe incorporated into a design cycle.

Resolver analysis
While resolver analyses taking into account leakage flux fromthe motor is required for its reliable design, the simulation modeltends to be large. This particular case requires 35 million
elements.
The JMAG's massively parallelized solver using 512 cores
realizes approximately 125 times speedup compared with thenon-parallelized calculation.

Convergence Acceleration

Torque (Nm)JMAG uses highly-effective iterative calculation methods for the linear and non-linear solver.
Cutting-edge acceleration technologies are continuously incorporated to obtain excellent
convergence in all applications.
6
5
4
3
2
1
0
-1
-2

Time period correction method (EEC)EEC Used
EEC Not Used

0

0.05

0.1
Time (Sec)

04

0.15

0.2

The graph shows the torque history of an induction motor. In an
analysis model where time constant will be long due to the effects of
inductance and eddy current, it will take time to reach a steady state.
It is commonly known that EEC is effective in time reduction. JMAG's
EEC makes effective use of the characteristics of magnetic field
analysis and on top of the enhancements for the conventional EEC,
time has been reduced for a wide model to reach the steady state.

JMAG Simulation Technology

Mesh
It goes without saying that a high quality mesh is critical for a high precision analysis. JMAG gives
users several options to create mesh: from automatic to manual mesh, users can choose themethod that works best for them. The mesher within JMAG is both advanced and easy to use,which means that JMAG can generate optimal mesh for every type of analysis. We strive todevelop automatic mesh generation technology by leveraging more than 30 years of FEA
expertise and utilizing JMAGʼs unique geometry recognition technology.

Adaptation Technology for Mesh Generation
Every modelʼs mesh is unique; JMAG must be able to recognize the different components anddetermine what type of calculation will work best. For example, current flowing in a magnet
will alter the magnetic field and the necessary calculation method is different than if themagnet has no internal currents. JMAG allows for mesh generation that offers superior,efficient convergence by meeting these needs.

Misaligned slide mesh
A misaligned slide mesh allows analysis of various CAD and mesh models
because it can tolerate mesh misalignment on the slide interface.
For example, even for an axial flux motor since there is no need toregenerate mesh at each step and since the solver performs interpolation
between mismatched meshes, speed-up using MPP can be expected.

Geometry Recognition
A firm understanding of model geometry characteristics is required to generate optimum
mesh. JMAG has unique technology which allows it to recognize critical aspects of a CAD
model. By knowing what type of geometry is being modeled, JMAG can help speed up themodel setup.

Noise Canceling
Mesh noise (discretization errors) degrades the accuracy of an analysis. JSOL works harddeveloping technologies to suppress mesh noise. This technology has allowed JMAG toachieve an even higher degree of precision and reliability.

Rotating machine meshThis figure shows a mesh for stray loss calculation for an IPM motor withan attached housing. With the geometry recognition technology, thenumber of elements is drastically reduced by generating the extruded
mesh for both stacked stator and rotor core parts. For the coil end part,
tetrahedral mesh is used but mesh is smoothly connected to the otherparts. The housing has the thin layered mesh to represent for the eddy
current. The gap part has the mesh highly controlled as regular grid
reducing the numerical noise.

05

JMAG Simulation Technology

Modeling
Providing highly a reliable analysis requires faithfully implementing realistic physicalmechanisms into simulation models as best as possible. We continue to develop modelingtechnology for JMAG to provide the best models at each stage, from micro behavior insidematerials, to multi-physics phenomenon and control systems.

Material Database
JSOL has developed par tner ships with material
manufacturers to obtain the best possible data for
JMAGʼs material database. Along with including stressdependent magnetic proper ties and iron loss
properties of electromagnetic steel sheets, we also
continue work with our par tners to provide dataneeded in advanced analyses.

Modeling Materials
JMAG leads the field in material modeling technology.
Fast, detailed modeling methods are developed basedon our understanding of characteristics for magnetic
steel sheets, magnets, and powdered metals. Manycompanies use JMAG to help develop new materials,
which ensures JMAG is always capable of capturing
precise material responses.

Material database with about 745 items of materials

Magnetic ﬂux density (T)

0.3
0
-120

-80

-40

0
-0.3
-0.6
-0.9

40

Hysteresis modeling
JMAG performs accurate simulation accounting for both
hysteresis including the minor loop and the eddy current
inside the magnetic steel sheet. JMAG's highly-accuratematerial data needed in the calculation can also use datameasured by the user.

-1.2
Magnetic ﬁeld (A/m)

Coercive force distribution
Dysprosium (Dy) diffused magnets can reduce Dy while
increasing demagnetization heat resistance by distributing
coercive force appropriately. JMAG can simulate theseeffects. For the case of uniform coercive force for IPM
motors, a strong reverse magnetic field is caused on themagnet ends which result in demagnetization (left). By
effectively distributing coercive force, demagnetization
can be controlled (rigth).
Uniform Coercive Force Magnet

Distributed Coercive Force Magnet

Demagnetization Ratio Distribution

06

Multiphysics
As computational power has increased, companies have started incorporating multiphysics models into
their analyses. JMAG began offering this functionality to its users in 1994, when magnetic field/thermal
coupled analysis functionality was implemented for induction heating device design. Since then, aconsiderable amount of development has taken place in the area of multiphysics.
With such a large variety of analysis domains and the complexity of modeling within each domain, JSOL
has formed partnerships with CAE vendors in each analysis field with the goal of providing an easy to use
platform from which to embark on multiphysics modeling.

High-frequency induction hardening of a gear
This is an example of high-frequency induction hardening of a gear. Heat is generated as eddy
current is induced near the skin of the gear due to harmonic currents of the heating coil. Heatgeneration acquired through eddy current analysis is passed on to the element face of thethermal analysis model as heat source of the surface, after it has been integrated in the
thickness direction. By using the conversion function from volume data to surface data, eddy
current accounts for the skin effect and also avoids unnecessary mesh divisions near thesurface for thermal analysis. As a result, the analysis has become more efficient.

Joule loss density

Deformation and temperature distribution

Nonlinear structural analysis
With the movement of IPM motor centrifugal force, the permanent
magnet pushes on the stopper by dislocating from the tangent
direction with the rotor core and friction as an intermediately, resulting
in stress largely generating in the bridge part near the vicinity of thegap. Stress accounting for material nonlinearity is evaluated toachieve plastic regions locally.

Magnetostriction vibration
Magnetostriction is one of the major sources of vibration and noise.
This example visualizes vibration induced in a large transformer as well
as sound pressure distribution in the surrounding area (on the sphere)
based on magnetorestriction distribution results.

07

JMAG Solutions
JMAG provides solutions that are most suitable for each application and brings design anddevelopment to a higher level.

Induction Heating
JMAG accurately simulates and visualizes the intricate changes inherent in induction heating phenomena.
Eddy currents flowing through surfaces can be obtained with high accuracy, allowing for the generation ofhigh-quality skin mesh in work pieces. Detailed thermal management can be achieved by showing avisualization of the flow of eddy currents.

High-frequency induction hardening of a gear
This analysis verifies that temperature rises on the surface of the gears for both depth
and timing as expected. The temperature distribution is predicted with accuracy
through accurate eddy current distribution and magnetizing properties of temperaturedependency.
An efficient analysis is achieved by mapping distributed losses in skin depth to thesurface of a thermal model.

Power Transformers
JMAG reproduces the abnormal phenomena that occurs during the operation of power transformers. This
allows for analyzing causes and the conceptualization of countermeasures. By using thin shell meshtechnology to generate layered mesh while reducing the number of elements, it is possible to capture thestray loss that occurs within the housing at a high accuracy. Analyzing complex phenomena allows you tocreate designs that you can trust.

Stray loss in the lron core
The following illustration shows the loss distribution of the iron core in a short circuit
test. It can be observed that the leakage flux from the coil end enters perpendicularly
to the plane of the steel sheet resulting in eddy currents generated on its surface. This
leakage flux causes local heat generation during operation. By applying anisotropy tomagnetic properties and electric conductivity, the behavior of magnetic flux and eddy
currents in the laminated iron core can be correctly captured.

Solenoids
JMAG can optimize solenoid designs to maximize force while minimizing volume. This type of problem
typically requires realistic drive excitation. To accomplish this, JMAG can create high-fidelity solenoid
models that can then be exported to control/circuit simulation programs. By using a precise plant model(JMAG-RT model), you can now apply more realistic excitations to circuits.

Detailed analysis of solenoid valves
This case study shows the electromagnetic force vector applied to the plunger whenthe valve is closed and the flow speed contour of the path in the valve.
As the plunger is attracted by electromagnetic force and the distance with the yoke
becomes closer, the phenomenon of flow speed up is accurately simulated. By
coupling and solving fluid force with the motion equation, in addition toelectromagnetic force and spring force, we have simulated nonlinear response
characteristics in detail.

08

There are over 250 more case examples available. See the JMAG Website for more details.

www.jmag-international.com/catalog/

Linear Motors
JMAG is capable of analyzing not only of evaluating rotor thrust and cogging force, but can also perform
analyses of the magnetic force distribution that works on the tips of the stator teeth. A proper grasp ofthrust and ripple allows investigations into high precision positioning control to be carried out.

Electromagnetic-force analysis
A harmonic analysis of the torque waveforms will help identify the optimal magnet
skew. An appropriate skew angle will reduce cogging torque by 50% or more while
maintaining the same thrust force. Reducing cogging torque will drastically reduce
the amount of noise that the machine generates.

Power Converters
There are a variety of investigations that are possible in a power converter design. JMAG can simulate bothwinding and iron losses including the harmonic effects of the drive circuit. This can also be extended tolosses generated under surge or fault conditions. With the loss distribution, it is then possible to calculate
the temperature rise and include these effects in the thermal analysis.

The twist effect of a litz wire
In this transformer example, a ferrite core was modeled with gap in order to keep flux
density below 0.3T. Leakage flux will form around this gap and penetrate the coils inclose proximity. This leakage flux induces losses that can be reduced by changing
the winding to Litz wire. Using Litz wire reduces the copper losses by 20% by
reducing the effects of the leakage flux.

Wireless Power Transfer
JMAG makes it possible to carry out investigations ranging from basic RLC analyses to efficiency
predictions. To determine the efficiency of a wireless power transfer design, you must analyze the powertransfer as a function of position and angle. This can be done quickly in JMAG using the parametric analysis
tool. This tool will not only predict optimal positioning, but it will also help develop a robust and reliable
design.

Power transmission efficiency
In the electromagnetic induction-type wireless power supply, magnetic flux linking to
the upper power-receiving side reduces due to positional misalignment.
A decrease in flux linkage causes a reduction in the mutual inductance between coils.
From this the resonant frequency determined by the inductance and the capacitor isshifted, and transmission efficiency decreases. Also, when the voltage of thepower-receiving side coil is constant, the input voltage on the power supply sidechanges, and the supply power itself reduces.

09Model-Based Development

MBD Proposed by JMAG
We propose a workflow based on simulation for model-based development.
In order to achieve not only high performance for a component but also high integration within asystem, the process from system and component design, to prototyping and performance
evaluation, to system verification is continually repeated.
100

Motor Basic Design

80

Parametric analysis is performed whilechanging the motor type, the number of poles,
the number of slots, the number of turns, andthe rotor diameter to evaluate the maximum
output and maximum torque and narrow
down the design candidates.

System Design

Output (kW)A large design space based on
system requirements is searched
quickly and completely.

60

40

20
SPM

IM

IPM(I)

IPM(V)

0
0

500

1,000

1,500

2,000

Torque (Nm)
100

300

100

300

200

200

95

95
Torque (Nm)Eﬃciency (%)

0

90

-100

-100

85

85
-200

-200

事例協力：Gamma Technologies

-300

80

-300
2,000

4,000

6,000

8,000

80
2,000

10,000

4,000

6,000

8,000

10,000Speed (rpm)Speed (rpm)

100

300

100

300

200

200

95

95
100

Torque (Nm)900Eﬃciency (%)

Torque (Nm)

100

90

0

-100

-100

85

85
-200

-200

-300

80
2,000

4,000

6,000

8,000

80

-300

10,000

2,000

4,000

Inverter̲Motor

8,000

10,000Speed (rpm)Speed (rpm)Battery

6,000

Component Design

VehicleEvaluating Electric Efficiency During Run Time
Electric efficiency and battery run distance are evaluated by
performing run simulations that include EV modes on motors that are
narrowed down to their basic designs.

From a wide range of characteristics
being observed with parametricanalysis, an optimum specific motor
geometry and configuration aredetermined.

1.0

0.8

Ld

Lq

TorqueFlux linkage

Viable design

Torque (normalized)

High speed stress over the Limit
EMF over the Limit
0.6

Selected Design

0.4

Control Design Motor
Characteristics

0.2

0.0
0.2

0.3

0.4

0.5

0.6

0.7

0.8

Iron loss (normalized)

Rotor Geometry Optimization
10

Magnet size and positions are determined to maximize torque andminimize iron loss within an assumed operating region.

0.9

1.0

Magnetic saturation is fed to a control
simulator and motor characteristics suchas inductance, flux linkage, and torque,
all three accounting for spatial
harmonics, are output.

Eﬃciency (%)

Torque (Nm)900Eﬃciency (%)

100

100

Point A
24
77 203

300

218

98
Point B

2,293
24

200

Point D

Point C

21
109

91

90

97
601

97

180

276

1,022

65

96

813

13

855
711

100

Press ring

MagnetRotor core

Stator core

Coil end

Magnetic ﬂux frequency
component andloss density distribution0

94

Eﬃciency (%)

Torque (Nm)

95

93
-100
Iron loss
92
AC copper loss
-200

DC copper loss
91

Eddy current loss in magnet
Mechanical loss
-300

90

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000Speed (rpm)Evaluation with Efficiency Maps
Motors are created virtually and efficiency maps are produced
that include detailed geometry, detailed iron loss, magnet loss,
and AC loss, which were not considered in the basic design.
Evaluate both motor and generator modes and analyze the loss
breakdown at each operating point.

Vibration Evaluation
Vibration that did not cause any issues with the motor alone also
has its behaviour changed by the construction of the system.
Electromagnetic force distribution is linked to an NVH simulator
to perform verification at a high accuracy.

Using the latest simulation technology at present
using HPC (high performance computing), virtual
prototyping on computers is performed
accurately modeling actual machines.

Virtual Prototyping
Example provided in cooperation with:
Romax Technology, MSC Software Corporationnum(s)

+

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Using a highly accurate model,
whether system requirements havebeen met are checked in detail.

+den(s)ーId̲ref

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Integratorrpm->rad(electrical)
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Goto2
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200[ldlq]-K-[beta]

ldlq̲to̲beta

beta

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Speed

Interruption

Performance
Evaluation

Command torque

Torque (Nm)

150

100

50
JMAG-RT

Ld/Lq

JMAG-FEA

0
0

0.2

0.4

0.6
Time (sec)

0.8

1Together with the distributions of the magnetic field,
loss, temperature, and forces internal to the motor thatcannot be checked with a real motor being checked, theperformance over a wide range of operating conditions ischecked giving ideas for improvement.

Failure Detection Verification of a Motor ECU using JMAG-RT
By using a high accuracy JMAG-RT motor model, failure detection verification of a motor ECU
can be performed, and torque behavior at the time of circuit failure can be reproduced withthe same accuracy as with using 3D FEA.

11

JMAGʼs Motor Solutions
Electric machines must satisfy a wide range of requirements. JMAG has what it takes toachieve these goals, enabling virtual design, production and evaluation of electricmachines quickly, easily and in detail.
JMAG delivers the high accuracy evaluation of iron loss down to 1% efficiency needed forhybrid electric vehicles (HV) and full electric vehicles (EV). Actual motor design, productionand evaluation can be easily conducted virtually with instant and accurate results.

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25
0

Copper Loss [W]

2,0
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Stray

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20
0

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- Initial design evaluation
Motor templates and CAD link, as well as motor design evaluation with the helpof the property extraction function, can be done with simple steps.
- Modeling
Geometry: Accurately simulates complicated design such as laminated steel sheets with the editor function
Materials: Models material properties in detail such as magnets that have gone through thermal demagnetization
Mesh: Generates high quality mesh recognizing the symmetry of the geometry- Analysis
Rich in analysis functions vital for motor designers, such as a function to render efficiency maps instantly
by specifying a control method.

Sound pressure level

Eddy current distribution
in lamination

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02

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13

Optimization
In order to express the design automization of electrical appliances, from concept to detailed
designs, a seamlessly usable framework is required.
JMAG is capable of making practical use of not just parametric optimization, but topology
optimization also, in addition to multi-purpose optimization functions as well as single-purpose
optimization functions.

IPM motor topology optimization
Obtain IPM motor magnetic circuits to maximize average torque and minimize
torque ripple using stress during centrifugal force analyses as control
conditions. In the bridge part, the magnetic circuit which leaves a width
capable of enduring stress is obtained, maximizing magnetic energy.

300
all(2nd)250

last gen(2nd)satisfy

IronLoss (W)

200

150

100

50
50

0
0

100

200

300

400

500

Torque (Nm)Multi-objective optimization
IPM motor multi-objective optimization is performed with low speeds to high speeds, low loads tohigh loads, average torque maximization and torque ripple minimization in addition to stressduring centrifugal force analysis accounted for as iron loss and constraints at each rotation speed.
In order to increase average torque, the magnet is positioned on the gap side, and by modifying
the geometry of the slot opening, a magnetic circuit designed to reduce torque ripple and iron loss
is obtained.

14

JMAG's Proposed Model Based Development
JMAG-RT enables model based development with high concurrency, allowing plant design andcontrol design to be performed concurrently. JMAG-RT is a system which generates high-fidelity
plant models (JMAG-RT models) in a system level simulation from FEA models. From systemdesign, to ECU verification using HILS, JMAG-RT has a wide range of uses.

FeaturesUsing a virtual device model in HILS means that it is possible to test the ECU while the device is still
under construction. This can reduce the amount of test time necessary on the actual test bench.
Conceal information about geometries or materials so it can be shared between business companies.
The JMAG-RT model captures device performance that includes non-linear effects, saturation, and spaceharmonics. This high fidelity modelʼs response is nearly identical to the actual deviceʼs response.
FEM-Parameterized PMSM Block Support: Use JMAG-RT models with Simulink and Simscape.

Material properties sensitive
to temperature
Leakage flux
Slot harmonics

Magnetic saturation

3D

to

1D

Supported System
JMAG-RT is applicable to major SILS, MILS and HILS
systems which are used for system-level andreal-time simulations.
SILS/MILS- MATLAB/Simulink - GT-SUITE - Amesim - MapleSim- PSIM - SaberRD - SimulationX - RecurDyn - SIMBAHILS- OPAL-RT - dSPACE - DENSO TEN - A&D- DSP Technology - Speedgoat - Typhoon HIL- Concurrent RT

Supported Devices
Permanent magnet synchronous motors (3-phase, 6-phase)
Induction motors (3-phase, 6-phase)
Stepping motor (2-phase)
Switched reluctance motors (3-5 phase)Linear solenoid
Permanent magnet linear motors (3-phase)
Wound-Field Synchronous Motor
Synchronous reluctance motor (3-phase, 6-phase)
Generic model
15

Machine Design Tool for Design Engineers

JMAG-Express
JMAG-Express quickly performs multifaceted evaluation to obtain machine design that meets
performance requirements. Operations are easy with templates for motor geometry and evaluation
items. The templates can be reused and you can run multipurpose optimization with the built-in
engine. Design exploration covers magnetic, thermal, structural, and control design and tests awide range at high speed from concept design to detailed design.

Eﬃciency Map

Temperature

300

98

Stress

120

97

200

100
96

0

94

Temperature (degC)

95

Eﬃciency (%)

Torque (Nm)

100

93

-100

80

60

40

92
20

-200
91
-300
1,000

0

90
2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

0

10,000

100

200

300

400

500

600

700

800

900

1,000

Time (sec)

Speed (rpm)

Flux Line

Back EMF

Cogging Torque
800

0.5
0.4

600

0.3
400
0.2
200

0.1

0

0
0

2

4

6

8

10

12

14

0

16

-0.1

10

20

30

40

50

60

70

80

90

-200

-0.2
-400
-0.3
-600

-0.4
-0.5

-800

Capabilities
One-click simultaneous evaluation of magnetic, thermal, and structural characteristics of motors● High-speed calculation makes way for evaluation of multiple motor designs● Run a detailed evaluation in JMAG-Designer by just switching display mode
● Flexible support for analysis accuracy requirements and various applications●

Evaluation items
You can create and reuse templates of what you want toevaluate● Preinstalled- Magnetic design: machine constant, efficiency map,
cogging torque, torque ripple,
induced voltage, demagnetization- Thermal design: natural/forced cooling, cooling jacket,
temperature evaluation in a drive cycle- Structural design: stress evaluation
16

Motor types
You can add and use 2D or 3D custom shapes● Custom● Preinstalled- WSFM- IPM- Axial Gap Motor- SPM- Claw-Pole Motor
- IM
- SRM
- SynRM- Brush Motor- Universal Motor etc.

External Interface
JMAG is also striving to provide more linking capability with various systems and is putting
efforts into interface development.
Using a direct interface, linking with other software can be performed seamlessly. A genericinterface can be used to exchange data using a generic format such as CSV, and to link with an
in-house system.

Direct Interface
JMAG's direct interfaces allow seamless data exchange with other software.
By exchanging detailed results data between software applications at high speed without loss of precision,a high accuracy analysis is possible without impact on ease of use.
●

Structural : Abaqus
The electromagnetic force
distribution obtained byelectromagnetic field analysis in
JMAG is transferred to Abaqus forvibration analysis and non-linear
structural analysis.

●●

Sound : Simcenter 3D (LMS Virtual.Lab)
Performs electromagnetic vibrationand noise analysis.
Excitation force is obtained fromelectromagnetic field analysis in JMAG,
and the excitation force data whichtends to be large is compressed andtransferred.

*[1]

Fluids : STAR-CCM+
Thermal fluid analysis is performedby providing a loss distribution
obtained by electromagnetic field
analysis in JMAG as a heat source forSTAR-CCM+.
A temperature distribution isreturned to JMAG, and the temperature is reflected in
the magnetic characteristics allowing two-way coupledanalysis to be performed.

* [2]
●

Vibration analysis is performed
combining the motor and gear or
speed reducer.
The electromagnetic force per
stator tooth and rotor torquesolved for using JMAG are passed
to Romax nexus.

*[3]

Coupled analysis interface : MpCCI● Control : MATLAB/Simulink, PSIM●

Vibration : Romax nexus* [4]Optimization : modeFRONTIER, Optimus, HEEDS,
optiSLang● Vibration : MASTA●

Multi-Purpose File Input/Output
Various software applications can be linked to using a file.
CSV, Nastran, and Universal formats are supported, and various types of meshes can bemapped to. Physical quantities that can be input or output: loss, heat transfer coefficients,
electromagnetic force, stress, strain, displacement, speed, temperature, acceleration,
magnetic flux density, magnetization quantities, current density, permeance, electric field
Structural : MSC Nastran, NX Nastran● Thermal fluids : Acusolve, SCRYU/Tetra, Particalworks●

Actran by
Acoustic Radiation CaseSound : Actran● Control, 1D : MATLAB/Simulink, Amesim●

COM Interface Support
It is possible to use JMAG with other software by running VB Script and other scripting languages.
*Reference :[1] JMAG Application Catalog #114 Vibration Analysis of an Outer Rotor Motor[2] CWIEME Berlin 2015[3] JMAG Application Catalog #206 Temperature Analysis of an Oil-Immersed Transformer Using a Coupled Magnetic Field and Thermal Fluid Analysis[4] JMAG Leaflet #91 NVH analysis of EV drivelines with JMAG and Romax nexus

17

Products Structure
JMAG provides a wide array of tools covering conceptual designs to advanced designs.
Many interfaces are also supported for the combined use of various software and systems.

Supported
Cloud Systems

General purpose FEA software for electromechanical design

JMAG-Designer- AWS- Azure- Rescale Platform

CADs
Link
- CATIA V5- Creo Parametric- NX
Import- SAT- DXF- Parasolid- SolidEdge- SOLIDWORKS- IGES- STEP- CATIA V4 / V5
- CREO, Pro/ENGINEER- NX- Inventor

Motor Design Tool

JMAG-Express
Job scheduler
- LSF
- PBS
- Torque- Slurm- CondorModeler
Pre/Post

SolverCAD
InterfaceParametric・Optimization

Simulation management tool

JMAG-Explorer
ScriptApplication Tools

JMAG-RT
ExportJMAG-RT
Model

SILS/MILS/HILS- MATLAB/Simulink- OPAL-RT- PSIM- DSP Technology- LabVIEW- dSPACE- Amesim- DENSO TEN- GT-SUITE- AandD- MapleSim- Speedgoat- SaberRD- Typhoon HIL- SimulationX- Concurrent RT- RecurDyn- SIMBAJMAG-RT model viewer

JMAG-RT Viewer
18

DirectInterface

GeneralPurposeInterface

Partnerʼs Products- Nastran- Abaqus- LMS Virtual.Lab- MpCCI- MATLAB/Simulink- PSIM- optiSLang- SPEED- STAR-CCM+- modeFRONTIER- Optimus- HEEDS- Romax nexus- MASTA

MultiPurpose
File/COM

Third-party System- modeFRONTIER- Optimus- Nastran- Abaqus- LMS Virtual.Lab- General-Purpose
Batch System- Actran- OptiStruct- STAR-CCM+- Acusolve- SCRYU/Tetra- SmartDOetc.

JMAG-Designer has an intuitive GUI, advanced modeling functions, and various result display
functions.
To eﬃciently use these functions, an automation function is also provided.

JMAG-Designer
Motor Design Tool

JMAG-Express

Modeler

Pre / Post

・2D/3D modeler・Manual mesher・Motor templates
・Transformer templates
・Coiled templates・Electric circuit editor
・Thermal circuit editor
・Control circuit

CAD Interface

Solver・Condition settings
・Material DB
・Mesher・Job scheduler
・Post・Report generation
・Analytical tools- Loss- Inductance- Comparison/
Difference plot
- Field FFT・Magnetic
・Electric
・Thermal・Structure
・Multiphysics

etc.

・SMP solver
・MPP solver
・GPU solver

Parametric・Optimization
・Variable setting/control ・Response graph ・Correlation matrix ・Optimization engine ・Pareto chart

Script・VB Script

・Python・Jscript

Application Tools
・Efficiency maps

JMAG-RT
Export・Motor inductance・Bus bar inductanceDirectInterface・Transformer characteristics

GeneralPurposeInterface

19

JMAG Libraries
For those who are considering using electromagnetic ﬁeld analysis, those who are familiar with JMAG, and those who are using
JMAG-RT motor models for control veriﬁcation, sample models and documentation and data for each situation are available.
Please use.

Case studies

Function
descriptions

Performance
veriﬁcation

Modeling

Operating
instructions

Sample data

LeaﬂetWhite Papers

Self Learning System (JMAG -SLS)

Application Catalog

Application Note

Function Tutorial

JMAG Function Videos

JMAG Users Conference Proceedings

Implementing JMAG

Technical FAQs

JMAG-RT Model Library： JMAG software users@JMAGInternational

＠jmag-international@JMAGTVJMAG Division
JSOL Corporation
KUDAN-KAIKAN TERRACE 11th Floor
1-6-5,Kudanminami,Chiyoda-ku,Tokyo 102-0074, Japan
TEL +81(0)3-6261-7361
E-mail info@jmag-international.com
2023-09