White Papers

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  1. [W-MA-49] Necessity and Approach of Stray Load Loss Analysis

    The main components of loss depend on the operating point. One of these components is stray load loss.

  2. [W-SE-74] Electromagnetic Force Calculations Using the Adaptive Function

    In this report, we clarify the causes of measurement errors for electromagnetic force as well as show that adaptive analysis can be the way to solve this issue. As a calculation m…

  3. [W-MO-24] Copper Loss Analysis of a Rotating Machine Using the Zooming Method

    In this paper, this method is applied to a copper loss characteristics analysis of wires in a 2D rotating machine as well as a loss analysis of litz wires in a 3D rotating machine…

  4. [W-MB-66] Accuracy Improvements in the JMAG-RT Induction Machine Model

    In this paper, improvements in the accuracy of induction machine plant models when applied to automobile drive motors are discussed.

  5. [W-SE-53] Transition to Steady State in a Short Time

    In the following, it is shown that the steady state analysis results can be obtained with less number of time steps by using the TP-EEC method.

  6. [W-MO-13] Evaluation of a 2D Brush Motor Analysis Accounting for 3D Geometry

    In this applied case, the structure of a 2D analysis model accounting for 3D geometry is evaluated through the comparison with a 3D analysis model. The modeling validity is proved…

  7. [W-SE-73] Influence of Element Shapes Near the Coil on Convergence

    Mesh is essential for the accuracy and convergence of iterative calculations such as ICCG in the finite element method.

  8. [W-MB-64] Modeling Loss in JMAG-RT

    In this paper, we explain how loss is modeled in a JMAG-RT model.

  9. [W-MO-85] Efficiency Map Evaluations Considering Harmonic Loss

    In this paper, we propose a method that combines two approaches to calculate the efficiency at various operating points considering the influence of time harmonics and other effec…

  10. [W-HU-71] Notes on Performance Evaluation and Hardware Selection of JMAG Parallel Solver

    This document can be thought of as pointers and precautions for hardware selection and software operation.

  11. [W-MB-63] Method for Determining the Optimum Resolution of JMAG-RT Model

    In this paper, we present a method to increase the resolution of a JMAG-RT model iteratively while performing system simulation.

  12. [W-MA-70] Mesh Modeling for Coil AC Loss Analysis

    In this report, coil AC loss analysis is examined from the perspective of mesh modeling.

  13. [W-MA-87] Verification of the Accuracy of Minor Loop Loss Using a Play Model

    In this paper, from the minor loop loss with DC superposition being measured and compared with results using the play model, it was verified that the play model can reproduce the …

  14. [W-MB-65] The Necessity of JMAG-RT 3D Models

    In this paper, the necessity of 3D FEA models in plant model generation will be discussed.

  15. [W-MA-51] Understanding Electromagnetic Phenomena in Steel Sheets Through Simulation

    Overview1. IntroductionDiscussions so far have focused on the degree to which agreement was found with respect to total loss on actual measurements and analysis in iron loss evalu…

  16. [W-MA-48] Analyses of Higher Harmonics Copper Loss and Improvements Through Design Changes

    Overview1. BackgroundIncreasing the accuracy of a loss analysis for a magnetic field analysis becomes an important issue. Various factors cause losses to diverge from their theore…

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