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
Apply for JMAG open interface program
Implementing
Case studies by users working with JMAG.
※updated every Wednesday
Fuel Consumption Simulations for Vehicles Equipped with HUB Bearings with Motor Generator (eHUB) New
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.
Verification of Temperature Distribution and Thermal Strain Level with Induction Heating for Thin Plates
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
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
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
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
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).
Noise and Vibration Development for a Motor in Drive-Unit Using JMAG and ROMAX
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
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
Creating NVH simulation workflow for E-motor and driveline development with JMAG-MSC Nastran and JMAG-AVL Excite-Nastran.
Verification of Temperature Distribution and Thermal Strain Level with Induction Heating for Thin Plates
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
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-
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
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
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
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.
Computer Simulation of Double Hardened Layer Induction Hardening
Using coupled analysis of JMAG’s magnetic field and MSC’s Marc heat treatment with phase transformation models as induction hardening simulation method.
Solenoid Valve Development Using Magnetic Field Analysis Coupled Technology
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.
Solenoid Valve Development Using Magnetic Field Analysis Coupled Technology
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-
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
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
After registering as a member, you can utilize the sample data.
Structural/vibration analysis
SPM Motor Electromagnetic Force Distribution (Stator Electromagnetic Vectors)
The data in this document is obtained by outputting the electromagnetic force distribution of the motor time history obtained with JMAG to frequency domains. This data can be used when simulating vibration in frequency analysis using the electromagnetic force of the motor as the excitation force. Mesh information, step information, and result data (physical quantities) are included in output files.
Electromagnetic Force Distribution of SPM Motors (Electromagnetic Force for Each Tooth)
This sample data is output from the motor electromagnetic force obtained in JMAG for each tooth according to the rotation angle region, time domain, and frequency region settings. This can be used to run vibration analysis using the motor’s electromagnetic force as 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 and can be used when temperature analysis is run using the motor’s heat generation as the heat source. The output file contains 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: After confirming your application, enter your ID/PW on the dedicated log-in page
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.