Eddy current damping analysis of laser marker using 3-D finite element method

2006 ◽  
Vol 42 (4) ◽  
pp. 1011-1014 ◽  
Author(s):  
T. Yamaguchi ◽  
Y. Kawase ◽  
H. Kodama ◽  
K. Hirata ◽  
Y. Hasegawa ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Eddy Current ◽  
Eddy Current Damping ◽  
Laser Marker ◽  
Element Method

scholarly journals Dynamic Analysis of Eddy Current Damping Mechanism Employing 3-D Finite Element Method

2005 ◽  
Vol 125 (12) ◽  
pp. 1140-1144 ◽  
Author(s):  
Katsuhiro Hirata ◽  
Yuya Hasegawa ◽  
Tomohiro Ota ◽  
Tadashi Yamaguchi ◽  
Yoshihiro Kawase ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Analysis ◽  
Eddy Current ◽  
Eddy Current Damping ◽  
Element Method

A MSFEM to simulate the eddy current problem in laminated iron cores in 3D

2019 ◽  
Vol 38 (5) ◽  
pp. 1667-1682 ◽  
Author(s):  
Karl Hollaus
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Eddy Current ◽  
Eddy Currents ◽  
Three Dimensional ◽  
Harmonic Balance Method ◽  
Three Dimensions ◽  
Magnetic Vector Potential ◽  
Content Type ◽  
Element Method

Purpose The simulation of eddy currents in laminated iron cores by the finite element method (FEM) is of great interest in the design of electrical devices. Modeling each laminate by finite elements leads to extremely large nonlinear systems of equations impossible to solve with present computer resources reasonably. The purpose of this study is to show that the multiscale finite element method (MSFEM) overcomes this difficulty. Design/methodology/approach A new MSFEM approach for eddy currents of laminated nonlinear iron cores in three dimensions based on the magnetic vector potential is presented. How to construct the MSFEM approach in principal is shown. The MSFEM with the Biot–Savart field in the frequency domain, a higher-order approach, the time stepping method and with the harmonic balance method are introduced and studied. Findings Various simulations demonstrate the feasibility, efficiency and versatility of the new MSFEM. Originality/value The novel MSFEM solves true three-dimensional eddy current problems in laminated iron cores taking into account of the edge effect.

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