White Papers
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[W-SE-75] Iterative Calculations and Convergence Characteristics
In this report, we will explain the convergence criteria of a local quantity and the improvement of the determination of convergence of ICCG. And then, we describe that these idea…
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[W-SE-72] Reduction of Time Steps by Using Time Periodic Explicit Error Correction Method
In electrical equipment design, Computer Aided Engineering (CAE) software is used to make the best possible products within allowable timelines.
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[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…
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[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…
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[W-TR-15] Loss Evaluation of a Transformer Shield Based on the Homogenization Method
In this paper, each electromagnetic steel sheet of the shield is not modeled; by applying the homogenization method which replaces magnetically and electrically equivalent materia…
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[W-MA-47] Toward Practical Application of Iron Loss Analysis Taking Stress into Account
Increasing the accuracy of an iron loss analysis for a magnetic field analysis poses challenges. With conventional iron loss calculation methods, the iron loss characteristics of …
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[W-MA-50] Effectiveness and Limits of 2D Analysis from Loss Analysis
In electromagnetic field analysis, 2D analysis (FEM) that include iron loss evaluations are widely used as a way to find a balance between finely detailed analysis and convenient …
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[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.
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[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…
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[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.
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[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…
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[W-MB-64] Modeling Loss in JMAG-RT
In this paper, we explain how loss is modeled in a JMAG-RT model.
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[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.
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[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.
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[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 …
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[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.
