Finite element scheme based on magnetic vector potential and mechanical displacement for modeling magnetostriction

2011 ◽  
Author(s):  
A. Volk ◽  
M. Kaltenbacher ◽  
A. Hauck ◽  
M. Ertl ◽  
R. Lerch
Keyword(s):  
Finite Element ◽  
Vector Potential ◽  
Magnetic Vector Potential ◽  
Magnetic Vector ◽  
Finite Element Scheme ◽  
Element Scheme ◽  
Mechanical Displacement

Using Reduced Support to Enhance Parallel Strong Scalability in 3D Finite-Element Magnetic Vector Potential Formulations with Circuit Equations

2016 ◽  
Vol 36 (6) ◽  
pp. 400-408
Author(s):  
Eelis Takala ◽  
Evren Yurtesen ◽  
Jan Westerholm ◽  
Juha Ruokolainen ◽  
Tommi Peussa
Keyword(s):  
Finite Element ◽  
Vector Potential ◽  
Magnetic Vector Potential ◽  
Magnetic Vector ◽  
3D Finite Element

scholarly journals Progressive Current Source Models in Magnetic Vector Potential Finite-Element Formulations

2016 ◽  
Vol 52 (3) ◽  
pp. 1-4 ◽  
Author(s):  
Patrick Dular ◽  
Patrick Kuo-Peng ◽  
Mauricio V. Ferreira da Luz ◽  
Laurent Krahenbuhl
Keyword(s):  
Finite Element ◽  
Vector Potential ◽  
Current Source ◽  
Magnetic Vector Potential ◽  
Magnetic Vector ◽  
Source Models ◽  
Finite Element Formulations

The Analysis of Pressure Capability of Different Teeth Structures in Ferrofluid Seal

2010 ◽  
Vol 146-147 ◽  
pp. 1278-1284 ◽  
Author(s):  
Fei Fei Xing ◽  
De Cai Li ◽  
Wen Ming Yang
Keyword(s):  
Magnetic Field ◽  
Finite Element Method ◽  
Finite Element ◽  
Theoretical Model ◽  
Vector Potential ◽  
Potential Method ◽  
Magnetic Vector Potential ◽  
Magnetic Vector ◽  
Two Sides ◽  
Sealing Gap

Theoretical model of calculating magnetic field of typical ferrofluid sealing structures with magnetic vector potential method is built. Based on the theoretical model, magnetic field distribution of rectangular teeth, two-sides dilated shape and one-side dilated shape teeth structures with common other conditions were calculated using finite element method when the sealing gap was 0.1mm and 0.12mm. The comparison of their results with the same sealing gap showed that one-side dilated shape teeth structure had higher pressure capability than other shape teeth under reasonable design.

Effects of 3D Eddy Current Finite Element Formulations on ECT Signals

2006 ◽  
Vol 321-323 ◽  
pp. 464-467
Author(s):  
Hyang Beom Lee
Keyword(s):  
Finite Element ◽  
Eddy Current ◽  
Vector Potential ◽  
Nuclear Power ◽  
Scalar Potential ◽  
Gauge Condition ◽  
Magnetic Vector Potential ◽  
Magnetic Vector ◽  
Special Assumption ◽  
Finite Element Formulations

To obtain the simulated eddy current testing (ECT) signals of steam generator (SG) in nuclear power plant (NPP), nodal-based finite element (FE) analysis with magnetic vector potential (MVP) is usually used. To perform the numerical analysis, we derive the governing equation in terms of MVP and electric scalar potential (ESP) from Maxwell’s equations. To insure the uniqueness of solution, gauge condition has to be considered. In eddy current problems, Coulomb gauge condition (CGC) is usually used. In 2-D or 3-D axis-symmetric analysis, CGC is included during formulation and ESP is eliminated using some special assumption. Because CGC is not used during the formulation in 3-D analysis, we have to include artificially. And because of the heavy computation cost for 3-D analysis modified magnetic vector potential (MMVP) is used by elimination ESP. In this paper, effects of artificial treatment of CGC and elimination of ESP on ECT signal are investigated in order to help for obtaining accurate numerical simulation results.

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