In recent years, the sophistication of electrical equipment design is required. As known there is a limit to the design of magnetic circuits alone, therefore multifaceted evaluations such as structure, vibration, heat, and control are required at the same time.
It is more efficient to perform coupled analysis by linking different software where they have their own strength in the respective physical phenomenon rather than to adhere to one CAE software.
Challenges and solutions for coupled analysis
It is not easy to build a coupled analysis mechanism because it is necessary to know the details and interfaces of both CAE software that are linked.
Therefore, we have no choice but to rely on IT engineers who are familiar with using CAE software, but IT engineers may not always be able to easily obtain the necessary interface information.
Concerns remain about analysis accuracy, such as the accumulation of errors due to the exchange of physical quantities between different models and meshes.
Solutions based on JMAG for coupled analysis
What is Multi-Purpose File Export Tool?
- Coupling method via commonly-used files as proposed by JMAG
- It is easy to arrange the coupling setup since commonly-used and intuitive files, such as CSV and structural analysis files, are used.
- Mapping of physical quantities and changing analysis type
- Various types of conversions vital for coupling, such as mappings between different meshes and changing from the time axis to the frequency axis, can all be carried out in the Multi-Purpose File Export Tool.
Characteristics of Multi-Purpose File Import/Export Tool
| Export function | Descriptions |
|---|---|
| Major physical quantities | Electromagnetic force, Loss, Magnetic flux density, Displacement (Displacement) |
| Filtering function | Changing analysis type (such as frequency analysis results→transient analysis results) |
| Mapping function |
|
| Preview function | For checking mesh models and results after mapping |
| Import function | Descriptions |
|---|---|
| Major physical quantities | Heat transfer coefficient, stress, temperature distribution, displacement (deformation) |
| Import distributions | Read CSV files that contain information on coordinate values and physical quantities at those coordinates. |
| Mapping function | Automatically/manually determines the distance when searching for coordinates. |
| Preview function | Preview of output items in advance |
Cases considered in the coupled analysis
1.One-way coupled analysis
- Coupled analysis performed by JMAG users alone
- From JMAG to other CAE software
- From other CAE software to JMAG
2.Coupled with various CAE softwares
- Two-way coupled analysis built by an IT engineer in charge of MBD
- Can be freely coupled with multiple CAE software, including In-house system
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Implementing
Case studies by users working with JMAG.
* updated every Wednesday
Shape Optimization of Induction Heating Coil by JMAG – Optimus Cooperation New
JTEKT THERMO SYSTEMS CORPORATION (formerly KOYO THERMO SYSTEMS CO.,LTD.)
Key Points
It became necessary to study heating coils for a new manufacturing process, the high-speed carburizing technology. JMAG’s coupled magnetic field-thermal analysis was used to optimize the shape of the heating coils with the Optimus optimization tool.
It became necessary to study heating coils for a new manufacturing process, the high-speed carburizing technology. JMAG’s coupled magnetic field-thermal analysis was used to optimize the shape of the heating coils with the Optimus optimization tool.
Structural Analysis
Noise and Vibration of Oil-Immersed Transformer Generated by Load Current
Meidensha Corporation
Key Points
The load current noise of oil-immersed transformers is evaluated by coupling JMAG (electromagnetic force and sound pressure analysis) and ADINA (structural analysis). The trends in noise changes that occur due to the differences in tank structure are simulated.
The load current noise of oil-immersed transformers is evaluated by coupling JMAG (electromagnetic force and sound pressure analysis) and ADINA (structural analysis). The trends in noise changes that occur due to the differences in tank structure are simulated.
Verification of Temperature Distribution and Thermal Strain Level with Induction Heating for Thin Plates
Y-tec Corporation
Key Points
Investigate whether using induction heating as a new mass-production technique for automobile parts is feasible. Hourly temperature data obtained in JMAG is transferred to JSTAMP, a press-forming analysis software to calculate the thermal strain of induction heating.
Investigate whether using induction heating as a new mass-production technique for automobile parts is feasible. Hourly temperature data obtained in JMAG is transferred to JSTAMP, a press-forming analysis software to calculate the thermal strain of induction heating.
Solenoid Valve Development Using Magnetic Field Analysis Coupled Technology
Aisan Industry Co., Ltd.
Key Points
Run a three-way coupled analysis with MATLAB/Simulink, Amesim, and JMAG to account for transient fluid forces when evaluating the responsiveness of the solenoid valve. High quality development is achieved in a shorter time compared to the conventional development process.
Run a three-way coupled analysis with MATLAB/Simulink, Amesim, and JMAG to account for transient fluid forces when evaluating the responsiveness of the solenoid valve. High quality development is achieved in a shorter time compared to the conventional development process.
Analysis of Multi-Degree-of-Freedom Spherical Actuators in JMAG
Panasonic Corporation
Key Points
Created a direct link between JMAG and MATLAB/Simulink to construct analysis flow for dynamic analysis of spherical actuator with multi-axis rotation motion. Checked that analysis accuracy is applicable for fine processing in robotics that require accuracy to determine positioning in a smaller than 1mm range.
Created a direct link between JMAG and MATLAB/Simulink to construct analysis flow for dynamic analysis of spherical actuator with multi-axis rotation motion. Checked that analysis accuracy is applicable for fine processing in robotics that require accuracy to determine positioning in a smaller than 1mm range.
Prediction of Solenoid Valve Motion by Magnetic Field – Fluid Two-Way Coupled Analysis
Hitachi Astemo, Ltd.(formerly Hitachi Automotive Systems, Ltd.)
Key Points
Coupled analysis with JMAG and STAR-CCM+ can predict solenoid valve behavior in the early design stage.
Coupled analysis with JMAG and STAR-CCM+ can predict solenoid valve behavior in the early design stage.
Automated Electric-Machine Design Workflow in the Cloud for Aviation Applications
Rolls-Royce Hungary Kft.
Key Points
With JMAG’s interfaces to NX-Nastran and STAR-CCM+, a design workflow is created to enable each of the different design teams to work together in the cloud (AWS).
With JMAG’s interfaces to NX-Nastran and STAR-CCM+, a design workflow is created to enable each of the different design teams to work together in the cloud (AWS).
Vibration Analysis
Analysis of the Electromagnetic NVH of Electrical Machines
AVL Software and Functions GmbH
Key Points
Construct a workflow for NVH analysis with JMAG and NASTRAN. Verify the comparison to actual measurements.
Construct a workflow for NVH analysis with JMAG and NASTRAN. Verify the comparison to actual measurements.
Noise and Vibration Development for a Motor in Drive-Unit Using JMAG and ROMAX
Honda Motor Co., Ltd.
Key Points
Introducing motor NV prediction technology of the drive unit using JMAG and Romax.
In addition to quantitative evaluation for each spatial component of magnetic excitation force, taking effective measures and optimizing to identify structurally weak regions by analyzing contribution separation of structural response.
Introducing motor NV prediction technology of the drive unit using JMAG and Romax.
In addition to quantitative evaluation for each spatial component of magnetic excitation force, taking effective measures and optimizing to identify structurally weak regions by analyzing contribution separation of structural response.
Building the Prediction Process for Motor Noise by Co-Simulation Electromagnetic Circuit and Structure Transfer System
Mazda Motor Corporation
Key Points
Predicting the electromagnetic excitation force in an inverter current circuit model (Simulink/JMAG-RT) and motor magnetic circuit model (JMAG) and integrating with a structure transfer model (Nastran) to build a NV development process.
Predicting the electromagnetic excitation force in an inverter current circuit model (Simulink/JMAG-RT) and motor magnetic circuit model (JMAG) and integrating with a structure transfer model (Nastran) to build a NV development process.
Electric Noise in Cars from Inverter Current to Noise
AVL List Gmbh.
Key Points
Creating NVH simulation workflow for E-motor and driveline development with JMAG-MSC Nastran and JMAG-AVL Excite-Nastran.
Creating NVH simulation workflow for E-motor and driveline development with JMAG-MSC Nastran and JMAG-AVL Excite-Nastran.
Thermal Analysis
Metal Induction Heating Analysis with Two-Way Coupling of JMAG and STAR-CCM+
Fuji Electric Co.,Ltd.
Key Points
This is a case of induction heating analysis using JMAG multi-purpose file export and two-way coupling with STAR-CCM+. Magnetic field analysis is run in JMAG based on the temperature distribution received from STAR-CCM+. The heat generation distribution is returned to STAR-CCM+ for fluid analysis. The usability that this has for analysis that accounts for the temperature dependency of materials is checked.
This is a case of induction heating analysis using JMAG multi-purpose file export and two-way coupling with STAR-CCM+. Magnetic field analysis is run in JMAG based on the temperature distribution received from STAR-CCM+. The heat generation distribution is returned to STAR-CCM+ for fluid analysis. The usability that this has for analysis that accounts for the temperature dependency of materials is checked.
A Temperature Prediction Technique of Motors by the Combination Between Harmonic Loss Simulation by JMAG-Designer and Thermal Simulation by FloTHERM.
AISIN CORPORATION (formerly AISIN SEIKI CO., LTD.)
Key Points
To predict the generation of heat by using simulations, harmonic loss calculations are run in JMAG-Designer and then coupled with thermal fluid analysis in FloTHERM. The loss is mapped for each temperature, and thermal transient analysis is run.
To predict the generation of heat by using simulations, harmonic loss calculations are run in JMAG-Designer and then coupled with thermal fluid analysis in FloTHERM. The loss is mapped for each temperature, and thermal transient analysis is run.
Arc Plasma Interruption Process Modeling in Electromagnetic Relays Based on JMAG and ANSYS Fluent
OMRON Corporation
Key Points
Established simulation technology that visualizes the arc plasma interruption process. The mapping processing time of magnetic flux density data from JMAG to ANSYS FLUENT is significantly reduced from 4 hours to 15 seconds.
Established simulation technology that visualizes the arc plasma interruption process. The mapping processing time of magnetic flux density data from JMAG to ANSYS FLUENT is significantly reduced from 4 hours to 15 seconds.
Electromagnetic Field – Thermal Stress Coupled Analysis and Experiment Verification in High Frequency Induction Hardening
Denki Kogyo Co.,Ltd.
Key Points
Verified whether the amount of heat generation and temperature can be accurately evaluated when designing induction heating coils. Temperature distribution and time history data are obtained from JMAG and heat treatment analysis with COSMAP is run.
Verified whether the amount of heat generation and temperature can be accurately evaluated when designing induction heating coils. Temperature distribution and time history data are obtained from JMAG and heat treatment analysis with COSMAP is run.
Verification of Temperature Distribution and Thermal Strain Level with Induction Heating for Thin Plates
Y-tec Corporation
Key Points
Investigate whether using induction heating as a new mass-production technique for automobile parts is feasible. Hourly temperature data obtained in JMAG is transferred to JSTAMP, a press-forming analysis software to calculate the thermal strain of induction heating.
Investigate whether using induction heating as a new mass-production technique for automobile parts is feasible. Hourly temperature data obtained in JMAG is transferred to JSTAMP, a press-forming analysis software to calculate the thermal strain of induction heating.
Prediction of Solenoid Valve Motion by Magnetic Field – Fluid Two-Way Coupled Analysis
Hitachi Astemo, Ltd.(formerly Hitachi Automotive Systems, Ltd.)
Key Points
Coupled analysis with JMAG and STAR-CCM+ can predict solenoid valve behavior in the early design stage.
Coupled analysis with JMAG and STAR-CCM+ can predict solenoid valve behavior in the early design stage.
Heat Balance of 90kW Class 50,000rpm SPM Motor for Rocket Engine Propellant Supply -Modeling by Linking JMAG-RT and AMESIM Software-
Japan Aerospace Exploration Agency
Key Points
Using the JMAG-RT model in Simcenter Amesim for an insight on details of cooling fluid characteristics.
Using the JMAG-RT model in Simcenter Amesim for an insight on details of cooling fluid characteristics.
Automated Electric-Machine Design Workflow in the Cloud for Aviation Applications
Rolls-Royce Hungary Kft.
Key Points
With JMAG’s interfaces to NX-Nastran and STAR-CCM+, a design workflow is created to enable each of the different design teams to work together in the cloud (AWS).
With JMAG’s interfaces to NX-Nastran and STAR-CCM+, a design workflow is created to enable each of the different design teams to work together in the cloud (AWS).
JMAG & GT-SUITE Link for EV Traction Motor 1D Thermal Analysis
AISIN SEIKI CO., LTD.
Key Points
Estimating temperature fluctuation during continuous motor operation in a JMAG-RT model using GT-Suite and confirming that the trend is the same as the actual machine.
Estimating temperature fluctuation during continuous motor operation in a JMAG-RT model using GT-Suite and confirming that the trend is the same as the actual machine.
Electromagnetic Field Thermal Fluid Coupled Analysis for In-Vehicle Motors 2.0
Toda Racing Co., Ltd.
Key Points
Mapping heat generation distribution of the motor obtained from JMAG onto CFD software, scFLOW by Hexagon Group, modeling coil ends using the model of an actual machine, and examining by running the optimization of thermal boundary conditions.
Mapping heat generation distribution of the motor obtained from JMAG onto CFD software, scFLOW by Hexagon Group, modeling coil ends using the model of an actual machine, and examining by running the optimization of thermal boundary conditions.
Induction Heating
Development of a Simulation Method for Electromagnetic Stirring in Levitation Melting Furnace Using a JMAG-STAR-CCM+ Two-Way Coupled Analysis
Daido Steel Co., Ltd. / Star Info Tech Co., Ltd.
Key Points
Run a two-way coupled analysis between JMAG (electromagnetic field) and STAR-CCM+ (fluid) to estimate the influence of the way the equipment is put together in the levitation melting furnace and compare it to the actual measurements. Construct a simulation model that accurately reproduces the actual electromagnetic stirring phenomena.
Run a two-way coupled analysis between JMAG (electromagnetic field) and STAR-CCM+ (fluid) to estimate the influence of the way the equipment is put together in the levitation melting furnace and compare it to the actual measurements. Construct a simulation model that accurately reproduces the actual electromagnetic stirring phenomena.
Computer Simulation of Double Hardened Layer Induction Hardening
NETUREN CO., LTD.
Key Points
Using coupled analysis of JMAG’s magnetic field and MSC’s Marc heat treatment with phase transformation models as induction hardening simulation method.
Using coupled analysis of JMAG’s magnetic field and MSC’s Marc heat treatment with phase transformation models as induction hardening simulation method.
Optimization
Optimal Design of Instantaneous High-output Motor for Basketball Robots
TOYOTA MOTOR CORPRATION
Key Points
To develop motors for robots, JMAG-Express and ESTECO’s modeFRONTIER optimization tool are combined to analyze rotors, stators, and windings.
To develop motors for robots, JMAG-Express and ESTECO’s modeFRONTIER optimization tool are combined to analyze rotors, stators, and windings.
Solenoid Valve Development Using Magnetic Field Analysis Coupled Technology
Aisan Industry Co., Ltd.
Key Points
Run a three-way coupled analysis with MATLAB/Simulink, Amesim, and JMAG to account for transient fluid forces when evaluating the responsiveness of the solenoid valve. High quality development is achieved in a shorter time compared to the conventional development process.
Run a three-way coupled analysis with MATLAB/Simulink, Amesim, and JMAG to account for transient fluid forces when evaluating the responsiveness of the solenoid valve. High quality development is achieved in a shorter time compared to the conventional development process.
JMAG-RT
Low Oscillation Actuator for Force-controlled Medical Robot Arm
Sony Imaging Products & Solutions Inc.
Key Points
Medical robot arms require actuators that drive smoothly with low vibration. To achieve a low-vibration motor, the torque ripple and cogging torque were reduced with JMAG’s optimization functions, and a natural vibration analysis was run. In addition, the effect of excitation force, including control was evaluated by linking MATLAB/Simulink and JMAG-RT, and the radial force acting on the teeth was reduced by 25%.
Medical robot arms require actuators that drive smoothly with low vibration. To achieve a low-vibration motor, the torque ripple and cogging torque were reduced with JMAG’s optimization functions, and a natural vibration analysis was run. In addition, the effect of excitation force, including control was evaluated by linking MATLAB/Simulink and JMAG-RT, and the radial force acting on the teeth was reduced by 25%.
Case Study of Developing an IPM Motor Drive System with Model-Based Development (MBD) – Using JMAG-RT and HILS –
Shimadzu Corporation
Key Points
Model-based development (MBD) is required in complex and large-scale systems such as aircraft. In this case study, MIL/HIL and actual machine verification are compared in motor drive system development. MATLAB/Simulink is used for modeling the entire system, PSIM is used for the inverter and JMAG-RT is used for the physical model of the motor.
Model-based development (MBD) is required in complex and large-scale systems such as aircraft. In this case study, MIL/HIL and actual machine verification are compared in motor drive system development. MATLAB/Simulink is used for modeling the entire system, PSIM is used for the inverter and JMAG-RT is used for the physical model of the motor.
Vibration Prediction of Permanent Magnet Synchronous Motors by Aid of JMAG
YANMAR HOLDINGS CO., LTD.
Key Points
To predict motor vibration response, a motor plant model using JMAG-RT and Simulink was constructed. Confirms model validity by comparing the calculation and experiment.
To predict motor vibration response, a motor plant model using JMAG-RT and Simulink was constructed. Confirms model validity by comparing the calculation and experiment.
Electromagnetic Force Analysis of Permanent Magnet Synchronous Motor Driven by PWM Inverter
Hitachi Astemo, Ltd.(formerly Hitachi Automotive Systems, Ltd.)
Key Points
Add the distribution of the gap magnetic flux density to the JMAG-RT model and calculate the electromagnetic excitation force with system analysis (MATLAB/Simulink). Verify a new electromagnetic excitation calculation method by reducing the number of data transfers as well as the steps in learning how to use the software and set conditions.
Add the distribution of the gap magnetic flux density to the JMAG-RT model and calculate the electromagnetic excitation force with system analysis (MATLAB/Simulink). Verify a new electromagnetic excitation calculation method by reducing the number of data transfers as well as the steps in learning how to use the software and set conditions.
Fuel Consumption Simulations for Vehicles Equipped with HUB Bearings with Motor Generator (eHUB)
NTN Corporation
Key Points
Working on high-efficiency fuel consumption simulation to achieve a 10% improvement rate in fuel consumption. Thermal simulation is run with JMAG-RT (motor) and MATLAB/Simulink (MCU) and the results are reflected in requirements analysis and design.
Working on high-efficiency fuel consumption simulation to achieve a 10% improvement rate in fuel consumption. Thermal simulation is run with JMAG-RT (motor) and MATLAB/Simulink (MCU) and the results are reflected in requirements analysis and design.
Solenoid Valve Development Using Magnetic Field Analysis Coupled Technology
Aisan Industry Co., Ltd.
Key Points
Run a three-way coupled analysis with MATLAB/Simulink, Amesim, and JMAG to account for transient fluid forces when evaluating the responsiveness of the solenoid valve. High quality development is achieved in a shorter time compared to the conventional development process.
Run a three-way coupled analysis with MATLAB/Simulink, Amesim, and JMAG to account for transient fluid forces when evaluating the responsiveness of the solenoid valve. High quality development is achieved in a shorter time compared to the conventional development process.
Heat Balance of 90kW Class 50,000rpm SPM Motor for Rocket Engine Propellant Supply -Modeling by Linking JMAG-RT and AMESIM Software-
Japan Aerospace Exploration Agency
Key Points
Using the JMAG-RT model in Simcenter Amesim for an insight on details of cooling fluid characteristics.
Using the JMAG-RT model in Simcenter Amesim for an insight on details of cooling fluid characteristics.
JMAG & GT-SUITE Link for EV Traction Motor 1D Thermal Analysis
AISIN SEIKI CO., LTD.
Key Points
Estimating temperature fluctuation during continuous motor operation in a JMAG-RT model using GT-Suite and confirming that the trend is the same as the actual machine.
Estimating temperature fluctuation during continuous motor operation in a JMAG-RT model using GT-Suite and confirming that the trend is the same as the actual machine.
Currently provided data
You can use the sample data after registering as a member.
Structural/vibration analysis
SPM Motor Electromagnetic Force Distribution (Stator Electromagnetic Vectors)
This sample data is the motor’s electromagnetic force distribution of frequency domains. The electromagnetic force distribution of the time history calculated in JMAG is converted and output to frequency domains. It can be used to simulate vibration in frequency analysis using the motor’s electromagnetic force as the excitation force. The output file contains the mesh information, step information, and result data (physical quantities).
Electromagnetic Force Distribution of SPM Motors (Electromagnetic Force for Each Tooth)
This sample data is an output of the motor electromagnetic force obtained in JMAG for each tooth according to the rotation angle region, time domain, and frequency region settings. It can be used for vibration analysis using the motor’s electromagnetic force as the excitation force. The output file contains the result data (physical quantities).
Thermal analysis
Loss Density Distribution of IPM Motors
This sample data is an output of the motor loss distribution obtained in JMAG. It can be used for temperature analysis using the losses generated in the motor as the heat source. The output file contains the mesh information, step information, and result data (physical quantities).
Apply
This is an interface for developing integrated programs. Do not apply for any other purpose.
STEP1: Apply for JMAG open interface program.
STEP2: Agree to the terms and conditions.
STEP3: You will receive your ID/PW for the dedicated page once your application has been confirmed.
Please check for other company tools that are already integrated.
To use this interface, you must agree to the Terms of Use for JMAG interface information of use.