Magnetic Field

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  1. White Papers

    [W-MA-195] Influence of Symmetric BH Loop Fluctuations on Hysteresis Loss by Play Model

    In this paper, we clarify the influence mechanism from fluctuations of the symmetric BH loops to a resulting minor loop and estimate errors caused by the fluctuations.

  2. White Papers

    [W-MA-196] Modeling of Excess Loss for Arbitrary Magnetic Flux Density Waveforms

    Building upon the Bertotti model, this paper proposes a new modeling technique. More precisely, this approach is grounded in the power of the time derivative of the magnetic flux …

  3. Leaflet

    [L-OP-187] Multi-disciplinary Evaluation for Optimal Design Without Rework

    In this case study, we optimize a wound field synchronous motor (EESM) with two objective functions - average efficiency under the WLTC driving cycle and maximizing torque.

  4. Leaflet

    [L-OP-188] High-Speed Large-Scale Design Space Exploration Using Surrogate Model-Assisted Optimization

    In this case study, we used JMAG to optimize the geometry of an induction heating coil with surrogate models.

  5. [JAC307] Topology Optimization of SPM Motor Using the Magnet Orientation Direction as a Design Variable

    This case study runs an optimization to simultaneously explore the magnet topology and orientation directions through design variables to obtain at least the same torque as a Halb…

  6. [JAC305] Loss Analysis of IPM Motor During Driving Cycle Considering Temperature Variation

    In this example, we evaluate the time variation of losses and temperature during WLTC driving cycles when using an efficiency map with temperature dependency in an IPM motor.

  7. [JAC306] IPM Efficiency Map Analysis Accounting for Continuous Operation

    In this example, we will create an efficiency map for an IPM motor that considers continuous operation and imposes temperature constraints on the components.

  8. Leaflet

    [L-MB-186] System Integration and Verification Using High Accuracy Plant Models

    In this case study, the detection of current anomalies was verified by simulating an open winding fault.

  9. Leaflet

    [L-MA-185] Virtual Prototyping Enables Immediately to Validate the Machine Performance

    In this case, invisible losses were confirmed at the operating point in the high-speed range (12,000 rpm), where phenomena are complicated by weak field magnetization and high fre…

  10. Leaflet

    [L-HT-184] Cooling Performance Evaluation for Motor Magnetic Design

    Industrial motors, especially those with high power density, must take the cooling performance into account even for the magnetic performance with cooling. To improve the magnetic…

  11. Power Supply Technology Co., Ltd.

    PST is a specialized manufacturer that develops, designs, manufactures and sells power supplies and magnet rolls. In this interview, we talk with the team from the PST MG Design S…

  12. Leaflet

    [L-VI-183] Evaluation of System-Level Vibration Caused by Motor Electromagnetic Forces and Torques

    Motors are the power source that is incorporated into a system like eAxle, and the torque and electromagnetic force (excitation force) generated by the motor is transferred throug…

  13. [JAC302] Optimization of IPM Motor Geometry and Coil Turns

    This case study optimizes IPM motor geometry and coil turns by using objective functions to maximize the average efficiency of several operating points and minimize the volume to …

  14. The Future of R&D and Design: What Can Electromagnetic Field Analysis and Artificial Intelligence Do for You?

    Hajime Igarashi, Hokkaido University

  15. Improvement of Motor Design Process through Topology Optimization and Parametric Multi-Objective Optimization

    Hisayoshi Takeuchi, DAIHATSU MOTOR CO.,LTD.

  16. Case Study of Data-driven Design in Electric Motor Development

    Naoki Ohmura, IHI Corporation

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