White Papers
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[W-MA-51] Understanding Electromagnetic Phenomena in Steel Sheets Through Simulation
In the following, detailed physical phenomena in steel sheets can be acquired by simulation through the confirmation of analysis results in JMAG’s latest analysis function of the …
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[W-MA-46] Calculation Method of Eddy Current Loss of Electromagnetic Steel Sheet Using a 1D Finite Element Method
When calculating the eddy current loss in magnetic steel, conventionally, a Fourier transform is taken of the magnetic flux density derived from analysis and compared with actual …
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[W-MA-21] Iron Loss Analysis of an SR Motor Accounting for Hysteresis and Eddy Current Distribution
We used a new method which can evaluate iron loss in high accuracy even with magnetic density wave form for SR motors, and gained positive results when comparing with actual measu…
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[W-MO-23] Measurement of PM Motor Vibration/Noise and Analysis Modeling
While miniaturization and efficiency optimization are always in demand in motor development, demand is also increasing for the reduction of vibration and noise in recent years. As…
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[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.
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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.
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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-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-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-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-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-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-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-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-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-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 …
