This poster introduces the analysis workflow using JMAG V19.
New functions improves the efficiency of the operations from geometry creation to condition setting, result evaluation, model debugging, and the parametric study.
Please don’t miss new JMAG V19 that dramatically improves your everyday analysis work.

With the migration of the license server to LM-X, JMAG-Studio will be not available after December 2020.
But, we have heard that some customers would like to continue using JMAG-Studio because of functional differences.
JMAG-Designer includes most of JMAG-Studio’s function and the functions exceed JMAG-Studio.
This poster will introduce the concrete examples.

The analysis of calculating many steps, such as the analysis of a PWM drive motor, takes a long time even for a small-scale analysis. By using the TPFEM, small-scale analysis is accerated. This poster introduces the TPFEM.

As the electrical equipment design becomes more accurate, detailed modeling of the analysis target is required, which simultaneously increases calculation time.
JMAG-Designer is equipped with a zooming analysis function as one method of such detailed analysis.
This analysis function is a method to reduce the calculation time; firstly, calculating the total magnetic flux distribution with a coarse mesh and then, pasting the result on a locally refined mesh for detailed analysis.
In this poster, we will show the effectiveness of zooming analysis and the limit of its function by taking AC loss analysis of litz wire and induced voltage analysis of resolver as examples.

When the difference in magnetomotive force between objects is large, the distortion of magnetic flux linkages cause the electromagnetic force is very small. For this reason, errors due to mesh division are likely to be included, and the calculation accuracy of electromagnetic force may be reduced. Electromagnetic force correction is a method for reducing the error due to the mesh noise that cause the unbalanced force. Now it is possible to obtain electromagnetic force with high accuracy by using this correction and the adaptive meshing. This poster represents the guideline of the use of the electromagnetic force correction and the adaptive meshing to improve the calculation accuracy of the electromagnetic force.

In this seminar, we will introduce the outline of loss analysis methods such as the Play model and the 1D method. The goal of this seminar is to be able to use different iron loss calculation methods depending on the problem. Also, the iron loss characteristics can be changed as parametric. Introducing an example that considers the effect of temperature using this function.

The non-confroming slide is developed in JMAG V18. The remesh is not needed in the extended slide condition by the non-confroming slide. Therefore, the speed up is improved in parallel computing. In this poster, we show the accuracy and the ICCG convergence in the non-confroming slide. In addition, we show the restrictions.

In order to create meshes for the faster calculation with the expected accuracy, we are constantly adding and improving mesh generation functions.
This poster introduces new and improved features that have been recently added. In addition, we will explain in detail the following functions so that you can use them appropriately.
– automatic mesh generation in combination with manual mesh for some parts
– new method for the extended slide function

This poster introduces some powerful methods added in JMAG V19 for working with the mesh model.
Manually created meshes can now be combined with the auto mesh and small changes to the geometry can be made just by re-assigning elements.

This poster describes the performance improvements made to JMAG-Designer over the last year.
Our goal is to allow the analysis to proceed smoothly even with large models and many cases.
In addition, remaining issues and bottlenecks are described that will be the target for future improvements.

In JMAG V19, we provide a new interface that improves parameter list visibility and simplifies analysis procedures. By improving the accessibility of configuration parameters, you can efficiently change parameters and find out errors quickly. In addition, analysis results can be displayed in a list for quick evaluation and quick feedback to the design. This poster introduces the new GUI and introduces its appeal in line with actual examples.

To succeed in model-based development of an electric vehicle, the model must have high accuracy. In addition, motors for electric vehicles have a wide operating range, and it is essential to evaluate their characteristics on efficiency map.
In this poster, we will show the actual machine efficiency map can be reproduced with an accuracy of 1% or less by taking into account the factors that affect the loss, such as harmonics, AC copper loss, and building factor.

In electrical machine design, a number of trade-offs must be considered to find the best combination of design variables. For motors that use multiple operating points when driving, optimization with just one operating point is not sufficient.
By reviewing the efficiency map at the same time while optimizing multiple operating points on the map, you can study the design while checking the effect on the entire efficiency map.

In JMAG V18, we provided the topology optimization function by using Ngnet. The topology optimization function with the density method will be released in JMAG V19. This poster introduces the features of each method and how to use them.

Optimization using electromagnetic field analysis is established in electrical equipment design. Using topology optimization, We can think creatively and design with free ideas.So It is expected to be applied to various problems. JMAG also added a topology optimization function in V18. This poster introduces several examples of what has become possible by topology optimization.

There are a wide variety of requirements that electrical equipment must satisfy, and there is often a trade-off between requirements.
Optimum design to meet these requirements will define many design variables.or efficient and practical design in a limited amount of time, it is necessary to combine global and local exploration.
Methods for narrowing down global design exploration to design proposals include GA, equivalent circuit models, and experimental design methods.
This poster introduces the advantages and disadvantages of each method, along with examples.

In JMAG-Designer, there are various features that are helpful to operate parametric analysis of geometry easily. We are introducing these features in this poster. With “CAD Link”, geometry can be edited by third party CAD software. With “Direct Modelling”, CAD data can be edited easily by JMAG. “Geometry Template” and “Analysis Template” can be used to construct an environment for running parametric analysis just by selecting geometry and analysis content respectively. We will also show the methods for managing geometry errors. Please try these features!

In the induction heating analysis, the heat generation calculated from the magnetic field analysis is an important factor affecting the temperature and temperature distribution during the thermal analysis.
In this poster, we will introduce the modeling method for calculating the heat generation accurately.

JMAG-Designer has many solutions for solenoid analysis. Since various phenomena such as eddy currents, hysteresis, and collision can be handled, highly accurate response analysis can be performed. In addition, since it is possible to generate a highly accurate plant model and directly link with control, it can be used not only for equipment design but also for control side design.
This poster introduces the effects of modeling with examples applied to solenoids.

JMAG-Designer is a tool for performing low-frequency electromagnetic field analysis, it can calculate the parasitic inductance and stray capacitance of equipment. Conducting noise can be calculated by modeling together with a high-frequency electromagnetic field analysis tool(EMCoS Studio), and radiation noise can be evaluated from there. This seminar will introduce how to use JMAG-Designer and EMCoS Studio for EMC evaluation with examples.

Large machines are high-efficiency machines that can achieve 99% efficiency, and because prototypes and tests are difficult, various loss and vibration have been evaluated using simulation technology.
Even in small and medium-sized machines such as drive motors for HV / EV, higher output and higher efficiency are being promoted. And the same as common problems in large machines have became significant. For example, increasing the output power and reducing the size and thickness increases the magnetic flux leakage, which makes it difficult to predict and detect the location of loss due to actual measurement. This introduces various analysis technologies for large machines that can be useful for medium and small machines.

JMAG-Designer has various programs such as teaching materials and seminars for efficient engineer training.
This poster introduces materials and seminars necessary to understand and improve the level of engineers.

In July 2019, Academic has a new price. The license details have been changed slightly so that students in the future of the industrial field can use JMAG-Designer more since they were a student. In October, we have started seminars for students in Japan. I would like to continue to deliver useful projects, so I would be happy to hear your opinions.

JMAG-RT is used for control development and verification.
However, the internal processes in the conventional JMAG-RT Simulnk block are hidden.
In JMAG V19, a new “open and editable” Simulink block will be provided.
This poster explains a new workflow with the new block.
A new precise PMSM model “Flux Integral” that can use the new block and workflow is also introduced.

In JMAG-RT, a high-accuracy plant model can be created for use in control design. Not only a model specialized for a specific application such as a three-phase permanent magnet synchronous motor, but also a general-purpose model called an arbitrary model, the function supports a wide range of applications. This poster introduces examples of control simulation using a plant model created with generic model on MATLAB/Simulink.

Control circuit functions are available from JMAG V18 This poster explains the typical control modeling method such as PWM control and PID control. In addition, this poster shows the example of harmonic losses of PM motor driven by PWM drive when the current is controled.

For a model-based high-accuracy efficiency map, various type of modelings are required, including control circuit, AC loss, stress and processing strain. In addition, in order to finish the evaluation within the design period, some methods are necessary such as distributed processing, parallel calculation, and reduction of calculation time using behavior models. In this poster, we will introduce the functions necessary to actually draw a high-accuracy efficiency map.

The resolver is a complex model on its own. Adding the PMSM endwinding to look at its impact on the Resolver requires an incredibly complex and heavy model. This can be overcome with the new zooming function, but getting a simple, fastand yet accuarte solution to this challenge. In this poster, we will explain everything about resolver analysis, from the mechanism, evaluation method and the modeling method using zooming.

Considering concreate motor shapes and configurations in the system simulation stage enables to reduce rework and improve efficiency of development.
This poster introduces an example regarding to improvement of system level simulation using JMAG-Express Online.

Techniques for calculating iron loss with high accuracy, such as the Play model and 1D method, have been introduced, but the remaining issue is how to handle anomalous eddy current loss. In this seminar, we will summarize the anomalous eddy current loss separation methods studied so far, introduce the results of applying them to high frequency and DC superposition states, and the remaining issues for practical use.

In recent motors, the use of square wires and flat wires such as segment coils and edgewise coils is increasing to reduce size, improve heat dissipation, and improve productivity.When using these coils, it is important to understand the cause of AC copper loss and to take measures by changing the design.This poster introduces an analysis example of AC copper loss, and explains how to model the mesh division of the coil, which is particularly important.

In the development of electrical equipment, in order to correctly evaluate motion and temperature, not only the magnetic field analysis by JMAG-Designer but also the estimation of the force due to the fluid flowing around the product and the evaluation of local heat transfer coefficient is required. This poster shows the necessity of coupled analysis based on the cases which fluid and magnetic field phenomena are closely related.

JMAG-Designer structural analysis can take account material nonlinearity and contact nonlinearity. Introducing application case studies, we will introduce the point of setting, and how it can be evaluated. Three examples are planned to be introduced: “A centrifugal force analysis of an IPM motor considering contact with a magnet”, “Effects of vibration due to press-fit interference”, and “Stress evaluation by shrink fitting”.

To study weakly coupled multiphysics targets, physical quantities need to be passed to different kinds of solvers each other and that is time-consuming. We show the remarkable speed up of the process of mapping physical quantities in various cases, achieved in JMAG V19, that is helpful to JMAG users studying multiphysics.

In the initial stage of motor design, it is necessary to evaluate various aspects like efficiency map for control and thermal evaluation under continious rated operation. This poster introduces how to use the efficiency map and thermal evaluation function using the motor design web application.

Do you think JMAG-Designer cannot solve induction machines correctly?
If analysis is performed with the correct settings,
results close to actual measurements can be obtained.
This poster explains the points necessary to obtain highly accurate results.

Many methods for modeling coils and cores are common to wireless power transfers and high-frequency inductors(choke coils). In this poster, we will introduce the modeling method of the core material and the coil, the modeling method of the shielding plate, the modeling of iron loss, etc. with examples.

This poster introduces updates to the winding and magnet setting functions.
JMAG-Designer’s winding editor greatly simplifies the settings of multiple FEM coils/ FEM conductors.
Improvements to the magnet settings allow multiple poles to be set together reducing the effort required to set up the model.

JMAG V19 enables parametric analysis of material property values (physical property values) themselves in material data. When material properties are unknown, you can search for material property values using parametric analysis and optimization.
This poster introduces an example of searching for the mechanical characteristic value that can explain the measured natural frequency in the structural analysis of the motor using optimization (GA).

One of the issue of analysis work is the accumulation and utilization of “know-how” like a list of items to be confirmed, analysis method and indicative design variables. Most manager want to standardize their workflow and convert their accumulated experiences into a fast flowing routine.
For them, we introduce the “Analysis Template” function of JMAG-Designer. It is a very powerful tool that not only accumulates know-how, but can also significantly reduce the number of work steps. The effect is further improved by combining with “Equation” and “Set”.
Whether you haven’t used it yet or are already using it, there are new discoveries.

Are you feeling frustrated sticking in front of your PC to run multiple studies sequentially?Do you feel that the threshold is high because automation requires scripts?
JMAG Designer’s analysis group function makes it easy to automate the analysis process.Analysis that passes response values ​​between studies can be automated, and can be used for parametric optimization.