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  1. [L-HU-01] High Performance Parallel Solver Analyzing Complex Phenomena in Rotating Machines As Is

    JMAG's high performance parallel solver allows 3D analysis within a practical time frame. For example, it can solve for one step for a motor model of one million elements in one m…

  2. [L-OP-109] Exploration of New Ideas Using Topology Optimization

    The requirements for motor design are getting more advanced, satisfying torque ripple, line voltage limit, stress of core, as well as maximize the torque at low and high speeds. I…

  3. [L-SE-117] Dealing with Non-Conforming Mesh

    In an analysis using FEA, the motion region and stationary region connection surface meshes are made to conform. To do this the step displacement is adjusted to be an integral mul…

  4. [L-SE-116] Accuracy Improvement of Electromagnetic Force Calculation Using Correction

    In precision equipment analysis that requires high accuracy of operation, high accuracy is also required for the minute electromagnetic force generated by leakage flux and so on.

  5. [L-MO-115] Performance Evaluation of Induction Motors Using Efficiency Maps

    To analyze an induction motor's maximum efficiency, the voltage and slip is varied to find the combination with the highest efficiency.

  6. [L-MO-105] System Design with Model-based Efficiency Map (Speed Priority Mode)

    Electrical Vehicle drive require high efficiency of 95% or more over a wide operating range.

  7. [L-MU-110] Reaching Steady-State at an Early Stage Using a Control Circuit Containing a JMAG-RT Model

    Many motor performance evaluations are performed at steady-state. If transients occur during control/circuit coupling, it is necessary to calculate the number of electrical angle …

  8. [L-MO-106] Prototype and Performance Evaluation with Model-based Efficiency Map (Accuracy Priority Mode)

    The maximum efficiency of the drive motor for EV vehicles exceeds 95%. As further efficiency improvement is in the order of 1%, the efficiency error with the actual machine in the…

  9. [L-OP-107] Parameterize the Number of Poles and Slots

    In the initial stage of motor design, combinations of various motor types, numbers of poles, and numbers of slots are considered to find a design that meets the requirements. When…

  10. [L-MO-108] Motor Performance Evaluation Considering Control

    At the motor component design stage, motor performance is evaluated using an ideal sinusoidal current.

  11. [L-MU-91] NVH analysis of EV drivelines with JMAG and Romax Nexus

    NVH is the one of most critical issues in the drivelines development of EV/ HEV. There are several points to be considered for the NVH analysis of the driveline. To evaluate the N…

  12. [L-TR-44] Winding Vibration Analysis of a Power Transformer

    Winding vibration originating from a transformer is a vibration phenomenon that uses Lorentz force as the vibration force, which occurs when flux leakage from the winding works on…

  13. [L-SE-59] Detailed Modeling for Higher Harmonic Loss Analysis

    In IPM motors driven by PWM inverters, eddy current losses occur due to carrier higher harmonics. For higher efficiency, it is important to evaluate higher harmonic loss at design…

  14. [L-OP-61] Smooth and robust optimization process in JMAG

    The optimization is indispensable in machines design. Especially the optimization must consider not only the magnetic design issues but also the mechanical and the thermal design …

  15. [L-OP-57] Agile Multifold Design Evaluation

    In order to pursue higher performance machine design, it is necessary to grasp the influence of small changes in design proposals on machine characteristics. In order to evaluate …

  16. [L-OP-27] Instantly Extracting Needed Information from Large Amounts of Analysis Data with JMAG-Explorer

    JMAG-Explorer is a tool for quickly finding files from large amounts of JMAG-related files (project files, JCF files, and result files).

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