Wednesday, December 12 /
Thursday, December 13 /
* The contents of the program are subject to change without notice.
Wednesday, December 12
Development planning of JMAG
DAY1: Wednesday, December 12 9:40 - 10:40Development planning of JMAG I
Dr. Takashi Yamada, JSOL Corp.
|Our goal is to make JMAG the most powerful and smartest analysis tool.In order to achieve this, we have been proactively developing and introducing advanced simulation technologies. In addition to even faster solvers, robust mesh functions, detailed materials models, and multiphysics features, we will enhance post-processing functions such as optimization. By reinforcing the foundation of these leading simulation technologies, we will continuously evolve JMAG-Designer as a general-purpose analysis tool. At the same time, development of user-friendly tools for a wide range of users, such as JMAG-Express for motor design and the multi-purpose JMAG-VTB, is also in progress. Furthermore, enhancements of interfaces with third-party products are ongoing so that JMAG's applications can be expanded even more. Because of this, users will be able to easily conduct structural and fluid analyses with JMAG. We hope you will follow the progress of the continuously-evolving JMAG.|
DAY1: Wednesday, December 12 10:40 - 11:40Keynote Speech
Loss analysis and shape optimization of rotating machines
Dr. Katsumi Yamazaki, Professor, Dept. of Electrical Electronics, and Computer Engineering, Chiba Institute of Technology
|In recent years, the loss reduction and the efficiency improvement of rotating machines are strongly desired, whereas the output density becomes higher and higher. As a consequence, the necessity of electromagnetic field analyses increases for the design of rotating machines because the losses at each part of the machines, which cannot be separated only by measured results, can be obtained by the electromagnetic field analyses. Furthermore, owing to the progress of computers and numerical techniques, the loss reduction and the efficiency improvement of rotating machines have been achieved by coupling the electromagnetic field analysis with structure analyses and optimization methods.|
From these viewpoints, in this presentation, the characteristics improvements of rotating machines on the basis of the loss investigation and the shape optimization by using the electromagnetic field analysis and mechanical stress analysis will be reported and discussed.
Motor Design1 Session
DAY1: Wednesday, December 12 12:40 - 13:10Motor Design1 Session
Development of Cylindrical Linear Motor for Lift-Motion
Mr. Akihito Toyota, Energy Conversion Technology Group, YASKAWA ELECTRIC CORPORATION
|Linear motor with large continuous thrust / mass of mover ratio is required for lift-motion applications.|
In order to meet such a requirement, we developed a new cylindrical linear motor (CLM).
In this paper, first, we will explain the motor structure and the thrust generating principle of CLM. Next, we will introduce the results of the three-dimensional FEM magnetic field analysis on the relation between mover structure and thrust characteristics, and report on the mover structure to maximize the thrust of CLM. Finally, we will introduce the experimental results of a prototype CLM.
DAY1: Wednesday, December 12 13:10 - 13:40Motor Design1 Session
About magnetigation of magnets in small motors.
Mr. Michitaka Hori, Director, Technical Development Dept., Technical Denji Sokki Co.,LTD
|There is increased demand for magnet's magnetization in small magnetic devices, and magnetization analysis to design magnetization yokes is important.We will introduce an example of magnetization analysis in small motors.|
DAY1: Wednesday, December 12 13:40 - 14:10Motor Design1 Session
Analysis of the SR Motor Torque Ripple and Torque Ripple Reduction Method
Mr. Futoshi Yamane, Senior Researcher, ER Center,AR-1 Lab. AR-11, SAMSUNG YOKOHAMA RESEARCH INSTITUTE
|SR motors are awaited eagerly for their practical realization as motors without rare earths, and are characterized by simple structure, high heat resistance, and toughness because they rotate using the gap between magnetic resistances.|
On the other hand, there are challenges when shifting to productization due to their large noise levels and vibration compared with a synchronous motor.
Power, Large Machinery Session
DAY1: Wednesday, December 12 13:10 - 13:40Power, Large Machinery Session
Design of Large electric Rotating Machinery using FEM Analysis
Dr. Yuichi Tsuboi, Specialist, Design Section/Large Rotating Machinery Department 1/Rotating Machinery Systems Division, TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYTEMS CORPORATION
|Recently, FEM analysis including electromagnetic field analysis is widely used in designing electric machineries,. Motor designers have more opportunities to estimate results of FEM analysis.|
In this paper, FEM analysis of electromagnetic field and CFD analysis in TMEIC are introduced. And some examples which should be taken into consideration in applying FEM analysis are shown from the point of view of large rotating machinery designer.
DAY1: Wednesday, December 12 13:40 - 14:10Power, Large Machinery Session
The Design of Superconducting Magnet using JMAG
Dr. Jun Yoshida, Technology Research Center, Engineering Physics Group, Sumitomo Heavy Industries, Ltd.
|Superconducting magnet is an equipment generating high magnetic field by carrying high current density through superconducting wire. Therefore, while it generates constant field, large Lorentz force is exerted on the superconducting coil. Moreover, in the case of superconducting state disapearance in the whole magnet, called "quench", the magnetic field decreases to zero. In this case, large Lorentz force is exerted on the radiation shield arround superconducting coil by electromagnetic induction. In order to simulate these phenomena, it is required to couple electromagnetic field analysis with structure analysis.|
We established a system to couple JMAG with Femap with NX Nastran, which is used in our company in the past. Today I would like to introduce examples using this system.
Designers Distribution Session
DAY1: Wednesday, December 12 16:30 - 17:00Designers Distribution Session
Efforts to make prevalent Magnetic Field Analysis-centered CAE in Miki Pulley Co., Ltd.
Mr. Shigeyuki Hattori, Development Department, MIKI PULLEY CO.,LTD
|Since our company adopted JMAG in 1985, we have made an effort to spread its usage in the company. To begin with, there was a lack of understanding about CAE but rather than solving the technological issues surrounding FEM, the issue was how we could gain the understanding of our designers, so we had some problems spreading its usage. After that, we carried out validations of matches between analysis and experiments and by releasing the results, we were able to increase the trust placed in CAE in the company and after several years, we succeeded in spreading its usage. After that, we addressed issues such as developing our own design tools linked to Excel and aimed at improving operability and establishing a technical proficiency system for analytical staff in the company to raise skills, which has resulted in the present situation in which most of our electromagnetic device designers can use JMAG. In this presentation, I would like to introduce the process that took many years, and went from bitter experiences using CAE in the company to CAE becoming established.|
DAY1: Wednesday, December 12 17:00 - 17:30Designers Distribution Session
Practical use of JMAG-Designer in motor development
Mr. Kengo Takao, Engineering Department, RYOBI LIMITED
|In a motor with a brush, the example which utilized JMAG-Designer and considered optimization of motor form is introduced|
DAY1: Wednesday, December 12 17:30 - 18:00Designers Distribution Session
Development of the IPM motor using JMAG-SuperExpress
Mr. Takashi Ogawa, Engineering Division, Motor Development Center, Panasonic Corporation, Appliances Company
|In recent years, against the backdrop of the rising prices of rare earth and the strengthening of the global energy saving regulations, development into the high efficiency and the saving rare earth magnets technology has been investigated.|
Optimization for the high-efficiency IPM motor using the ferrite magnet, this paper reports the use case of the simple analysis function and the parametric analysis in JMAG-SuperExpress.
Coupled/Linked Analysis Session
DAY1: Wednesday, December 12 16:30 - 17:00Coupled/Linked Analysis Session
Integrated Acoustic Simulation of a Switched Reluctance Motor Drivetrain as part of a Multi-physics approach to Electric Vehicle Optimization
Mr. De Langhe Koen, Productline Manager, 3D Simulation Division, LMS International
|Electric motors are key to all alternative electric propulsion solutions, from hybrids to fuel cell and battery EV. Research and development efforts in this area are driven by demands for performance in terms of power, efficiency, comfort and reliability,|
DAY1: Wednesday, December 12 17:00 - 17:30Coupled/Linked Analysis Session
Creating Simulation Models based on Measuring Results of Brushed DC-Motors using JMAG-Designer
Mr. SCHÖNDELING, Matthias, Dipl.-Engineer Mechatronics, R&D Center, Valeo Wiper System, Bietigheim
|Having a valid simulation model is mandatory in the development process of a motor. In this article, the process will be shown beginning with a first analytical motor design and real mockups. Testing these mockups helps to adjust the simulation model created in JMAG-Designer.|
DAY1: Wednesday, December 12 17:30 - 18:00Coupled/Linked Analysis Session
Miniaturization Design Method and Performance Evaluation of Prototype Permanent-Magnet Synchronous Motor Optimally Designed by Thermo-Magnetic Field Coupling Analysis
Mr. Norihisa Iwasaki, Researcher, Research & Development Group, Hitachi Research Lab., Hitachi, Ltd
|In recent years, lightweight and high-efficiency motors are required in order to respond to final marketing of Electric Vehicle and Hybrid Electric Vehicle in automobile and other industries. When a motor is downsized,there is no way to avoid a heat problem. For motors, disruption of a balance between losses and cooling performance leads to overheated temperature above an acceptable level and cause a technical malfunction. Hence, it is necessary to design motors by using integrated analysis considering optimization design technique of motor configuration and application of magnetic material and cooling technique. We will introduce results of the miniaturization design of a permanent-magnet synchronous motor, for which an optimal design technique based on thermo-magnetic field coupling analysis is used.|
Thursday, December 13
DAY2: Thursday, December 13 9:00 - 9:30Morning Session
Introduction to new features of the JMAG series
Tetsuo Ogawa, JSOL Corp.
|JMAG V12 is about to be released. JMAG-Designer provides various features to support the design process effectively, for example, the optimization tool and the post-processor to derive and evaluate the design proposal,modeling functions and fast solver to analyze the complicate phenomena in detail. JMAG-VTB is also updated with the rich analysis scenarios and new user-friendly interface. It provides the framework which makes complex analysis accessible. JMAG-Express supports the whole flow of motor design,from the concept design to the detail design, with enhanced motor template and features for evaluation.|
JMAG for CATIAv5 is also enhanced the functions for the drive circuit,the induction heating, etc. In this session, I'll introduce these new functions and the way to use these features effectively along with demonstrations.
DAY2: Thursday, December 13 9:00 - 9:30Morning Session
JMAG for machinery design in electric power generation systems
Hiroyuki Sano, JSOL Corp.
|Numerical simulation such as electromagnetic field analysis is vital for machinery design in electric power generation systems. Simulation technology has been built up over many years. Renewable energy development will require more efficient machines. Analysis of large generators, transformers and circuit breakers require detailed loss calculation and multiphysics simulation.JMAG has developed simulation technologies for supporting the design of high efficiency machines through challenging in the field of electric power generation systems.|
Operation Technique Session
DAY2: Thursday, December 13 9:30 - 10:00Operation Technique Session
Efficient 3-dimensional optimization technology for high-precise magnetic rotation angle sensor
Dr. Takaomi Kojima, Doctor of Engineering, Technical Quality Generalization section, Tamagawa-Seiki Co., Ltd.
|Magnetic type rotation angle sensor is used for Hybrid-car, Shinkansen, Aircraft, Machining centers, etc.. It is classified into a Gear type magnetic encoder and Coil type Resolver, Singlsyn, etc. from the detection principle.In development of these magnetic type angle sensors, the example is showed which is optimized to the target of high-precision effectively by using JMAG.|
The optimization design technique using direct cooperation of 3 dimensional CAD and JMAG has been used in recent years. The objects which cannot be solved correctly only using 3 dimensional analysis, the optimal analysis need huge time.
In order to solve this problem, the 2 dimensional section analysis function of JMAG effectively used. Analyzing the difference in 2 and 3 dimensional analysis result, and mixing 2 kinds of analysis, efficient optimization analysis was solved 3 dimensional analysis at high speed.
DAY2: Thursday, December 13 10:00 - 10:30Operation Technique Session
Case study of JMAG application at Mitsuba Corporation
Mr. Ryuichi Takakusagi, Team Leader, Technical Development Department Section No.1, MITSUBA Corporation
|Electromagnetic field analysis is a powerful and indispensable tool for motor design. However, because of a lack of man-hours, the situation is that not all motor designers can master the operation of analysis software.That is why we will introduce an internally constructed system that allows motor designers to easily perform electromagnetic field analysis and also how that system has been operated. In addition, we will introduce several case studies addressing the coupling with optimization methods aimed at raising productivity further by automating the cut and try of simulations.|
DAY2: Thursday, December 13 10:30 - 11:00Operation Technique Session
The development of preliminary design automation system for HEV·EV motor
Mr. Masahiro Aoyama, Electric Drive Vehicle Design Dept. UNIT Group Advanced research team, SUZUKI MOTOR CORPORATION
|Recently, the flow of Automotive electrification makes it complicated to design HEV·EV motor. CAE analysis is an effective tool for development of HEV·EV motor, and more efficiency. But a considerable amount of skill and man-hours have become necessary for the analysis itself. Further, an advanced analysis system independent of the level of CAE designer is desired.|
On the other hand, automotive analysis system of correlation with motor performance and a design variable is wished also from other than the CAE designer.
In order to solve these problems in a preliminary design stage, we are tackling the development of design automation system for HEV·EV motor with JSOL corporation.
Today I'd like to introduce this system.
DAY2: Thursday, December 13 11:00 - 11:30Operation Technique Session
Case study of the electromagnetic analysis of a high-speed motor (using the JMAG-GPU solver).
Mr. Daisuke Mitsuoka, Senior Engineer, Aircraft Equipment Division, Shimadzu Corporation
|One method of speeding up the numerical simulation is calculation using the GPU (Graphics Processing Units).|
This presentation will present a case study of electromagnetic field analysis using the JMAG-GPU solver with a high-speed motor for a centrifugal compressor as the target.
Motor Design2 Session
DAY2: Thursday, December 13 9:30 - 10:00Motor Design2 Session
Evaluation of Different Electrical Steels and Iron Loss evaluation of inter-locks vs welds vs bonded lamination cores in IPM Hybrid Motor using JMAG.
Mr. C.R. Frontczak, Sr. Electric Motor Design Engineer, Tempel
|The use of JMAG has allowed me to create multiple case studies in which I change the electrical steel grades in order to determine which steel properties would yield the best motor performance.|
This presentation takes the viewer through the set-up and logic of the F.E. Model, and shows the results in terms of motor parameters.
The power and flexibility of the JMAG software enabled the decision making within one week as opposed to many months if I relied on testing physical samples.
DAY2: Thursday, December 13 10:00 - 10:30Motor Design2 Session
Development of Rare Earth Saving Magnet by Partial Diffusion Method
Mr. Masashi Inoue, Department 1, Technology Development Division 5, Honda R&D Co.,Ltd.Automobile R&D Center
|Nd2Fe14B sintered magnets used in HEV, EV drive/power-generating motors have high magnetic flux density, which contributes to higher torque and miniaturization of the motors. Nd2Fe14B sintered magnets have Dy added to them to raise coercive force but in addition to being scarce rare-earth elements, production sites are limited so prices have risen in recent years.Therefore, technology is required that maintains demagnetization characteristics even if the amount of Dy used is reduced.|
This time, in order to reduce the amount of Dy used even a little, JMAG's electromagnetic field analysis identified the demagnetization region of a motor targeted for development and quantified the expected coercive force to the magnet. As a result of this, a magnet with reduced rare earth was developed with the partial diffusion method which had as its concept of minimizing the amount of Dy used on the required locations and motor characteristic evaluations proved that the developed magnet's demagnetization characteristics are equivalent to that of traditional magnets.
DAY2: Thursday, December 13 10:30 - 11:00Motor Design2 Session
Vibration Optimization of Concentrated Stator and IPM Rotor
Mr. Alvin Lee, Section Manager, Hermetic Motor, Emerson
|Motor vibration is very important for hermetic motor application, especially for concentrated stator and IPM rotor design, which have both higher efficiency and higher vibration. To optimize motor vibration in full speed range,the magnetic radial force harmonics should be considered as the root cause.JMAG is applied to calculate and reduce the motor radial force harmonics.In the end, the comparison of original and optimized sample test result proves the JMAG optimization work is reliable and effective.|
DAY2: Thursday, December 13 11:00 - 11:30Motor Design2 Session
The simulation of he IPM motor in the HILS enviroment
Mr. Nobuyuki Suzuki, Reserch Scientist, Control Technology Reserch Center, Toshiba Corparation Corporate Manufacturing Engineering Center
|Technology on to raise the performance of home appliances as airconditioner,washing machine and the like, such as high efficiency, low vibration, low noise,etc., is making progress recently.|
To model and simulate MCU/Inverter/Motor have been tried to apply into motor development as one of these energy -saving key techonologies.
So, we will introduce simulation's result of IPM motor using MATALAB, JMAG-RT, and a real -time simulator.
Utilization Technique Session
DAY2: Thursday, December 13 14:40 - 15:10Utilization Technique Session
Approach of electromagnetic-field analysis in digital AV equipment
Mr. Hirotsugu Fusayasu, Manager, Digital Manufacturing Group, Technology Planning & Development Center, AVC Networks Company, Panasonic Corporation
|In the development of digital AV equipment, the products have continued to have their performance and functions improved, become more miniaturized, while the level of difficulty related to electromagnetic design issues increasing. We are addressing these issues through numerical analysis.|
In this presentation, I will introduce the application of electromagnetic field analysis technology focusing on the case study of the magnetic circuit design of magnetic sensors in LCD of DSC panels' opening and closing parts.
DAY2: Thursday, December 13 15:10 - 15:40Utilization Technique Session
Development of Advanced Keyless System Using Magnetic Field CAE.
AM. Toshihide Yoshida, Senior Staff, Electrical & Electronics Development Dept., Mazda Motor Corporation
|Mazda has been promoting the introduction of systems using magnetic field communications, such as an advanced keyless system and immobilizer system, as products that enhance vehicle convenience. To ensure the communication performance of these systems, it is necessary to lay out the coil antenna for the use of magnetic transmission (hereinafter referred to as LF antenna) in an appropriate place of the vehicle. In the conventional design method, the layout of the LF antenna is determined experimentally by use of a prototype vehicle. To realize prototype-free development, however, it became necessary to develop the communication performance through virtual evaluations. This time, with use of the magnetic field simulation technology (hereinafter referred to as CAE), we have developed a technology to theoretically verify the communication performance of these systems.|
DAY2: Thursday, December 13 15:40 - 16:10Utilization Technique Session
Attraction force analysis using remanent magnetization
Mr. Yoshiaki Shinozaki, Function Components Division, USUI KOKUSAI SANGYO KAISHA, LTD.
|We design mover valves that attract the mover valve with the magnetic force occurring in the in the coil during current flow, and that come off due to the spring force attached to the mover valve.|
With regard to the attraction force occurring when current flows, a correlated analysis has been obtained for the analysis results and test results. If the effect of the remnant magnetization force that occurs when the current is not flowing can be confirmed in the analysis, it is possible to decide on good geometry validation in the analysis, and I considered the analysis method.
Motor Design3 Session
DAY2: Thursday, December 13 15:10 - 15:40Motor Design3 Session
Improvement of characteristics of skewed permanent magnet motor
Mr. Kenji Endo, Manager, Motor Development Office, In-Wheel Motor Development Division, SIM-Drive Corporation
|We are developing the car having four wheels vehicle direct-driven by the inwheel outerrotor motor. We have variously researched for the countermeasures to lower a ripple torque peculiar to the permanent magnet motor because the ripple torque is transmitted to the wheel directly, and it influences riding comfort. This time, we introduces the details of the process of pursuing the core construction and the magnet shape, and the skew angle and the step number of skew making use of 2D and 3D analysis from among those countermeasures.|
DAY2: Thursday, December 13 15:40 - 16:10Motor Design3 Session
Analysis of Permanent Magnet Eddy-current Loss Using JMAG-SuperExpress
Mr. Shinsuke Kayano, Himeji Works, EM Design Group, Mitsubishi Electric Corporation
|An example of permanent magnet eddy-current loss in IPM (Interior permanent magnet) motors is shown.|
Evaluate reducing the permanent eddy-current loss becomes an important design issue in order to reduce PM costs. However, it is well known that analyzing permanent magnet eddy-current loss in IPM motors costs enormous efforts such as mesh model making, condition setting, computation time, and so on.
In these circumstances, we have introduced the JMAG-SuperExpress to be easier operations and to be faster calculation time. We also investigate accuracy of analytic results of the JMAG-SuperExpress comparing with conventional 3D-FEA in an IPM motor
DAY2: Thursday, December 13 16:10 - 16:40Motor Design3 Session
Design of Switched Reluctance Motor by JMAG for Automotive traction application
Mr. Yusuke Makino, Automotive Motor & Electronic Control R&D 2nd, NIDEC CORPORATION
|JMAG magnetic analysis of SR (Switched Reluctance) motor which uses no magnet is introduced in this presentation. Nidec has already developed SR motor for Automotive traction motors and they are in validation stage.Case study that compares JMAG analysis and actual performance of SR motor and improvement of torque ripple which can be source of motor vibration will be explained.|
DAY1: Wednesday, December 12 14:20 - 14:50Partner Seminar
High fidelity HILS and RCP for motor control development
Mr. Takashi Miyano, Director, Technical Department, dSPACE JAPAN K.K.
|In order to develop the motor control efficiently, the HILS is very effective. For the motor used in Hybrid vehicle, the precise motor and inverter models must be calculated very fast. dSPACE provides the customizable library for Simulink (ASM EC lib) and for FPGA (XSG EC Lib). The precise motor model can be imported from JMAG-RT.|
DAY1: Thursday, December 12 14:50 - 15:20Partner Seminar
Ideal to Electrical Implementation: SaberRD & JMAG-RT Case Study ina Motor Drive System
Mr. Kurt Mueller,Mr.Alan Courtay, Synopsys, Inc.
|Motor-drive systems play an increasingly important role in today's "more electric" society. The ability to rapidly develop and test control strategies coupled with ideal motor behavior is only the starting point. The real value of simulation to the motor-drive process is being able to accurately model and simulate the physical phenomena of interest that affect key aspects of the final product: controllability, stability, efficiency, and robustness. In this presentation we will explore a sample motor drive system described in Synopsys' SaberRD tool coupled with JMAG-RT. We will explore the design space and understand the interplay of motor and electrical dynamics from ideal control system to a detailed electrical level highlighting the system dynamics revealed through increasingly more physical modeling of the motor-drive.|
DAY2: Thursday, December 13 14:40 - 15:10Partner Seminar
Multi-physics simulation between JMAG and Abaqus, and its applicability to three-field simulation of cell phone speaker acoustic response
Mr. Brad Heers, Dassault Systemes SIMULIA
|For many classes of EM problems, solving "only" the EM portion of the problem is not sufficient for the most accurate solutions-often additional physics must also be considered in order to be truly predictive. In particular, a number of interesting engineering problems may required structural computations that are beyond the capability of JMAG to solve on its own. This talk discusses recent advances that allow users to couple the field physics of both JMAG and Abaqus, and discusses various engineering problems which can be solved through this collaboration. A user example of a cell phone speaker is demonstrated, with a focus on three-field coupling between electro-magnetic (Lorenz) forces calculated with JMAG and the structural and acoustic regimes calculated within Abaqus.|
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