scholarly journals Measurement of Three-Dimensional Magnetostriction on Grain-Oriented Electrical Steel Sheet

2011 ◽  
Vol 62 (3) ◽  
pp. 153-157 ◽  
Author(s):  
Daisuke Wakabayashi ◽  
Takashi Todaka ◽  
Masato Enokizono
Keyword(s):  
Magnetic Flux ◽  
Flux Density ◽  
Steel Sheet ◽  
Electrical Steel ◽  
Axial Strain ◽  
Three Dimensional ◽  
Magnetic Flux Density ◽  
Two Dimensional ◽  
Density Vector ◽  
Electrical Steel Sheet

Measurement of Three-Dimensional Magnetostriction on Grain-Oriented Electrical Steel Sheet This paper deals with the magnetostriction of a grain-oriented electrical steel sheet measured by using the two-dimensional vector magnetic property measurement system and a three-axial strain gage. The magnetostrictions in arbitrary direction are calculated with the measured strain tensors. The magnetostriction characteristics were changed depending on the magnetization process according to the exciting magnetic flux density and the exciting direction. In this paper, we make clear the relationship among the two-dimensional magnetostriction, the magnetic flux density vector, and the magnetic field intensity vector in the grain-oriented electrical steel sheet.

scholarly journals Calculation of the influence of slot geometry on the magnetic flux density of the air gap

2017 ◽  
Vol 2 (1) ◽  
pp. 81 ◽  
Author(s):  
Rodrigo Alves de Lima ◽  
A. C. Paulo Coimbra ◽  
Tony Almeida ◽  
Viviane Margarida Gomes ◽  
Thiago Martins Pereira ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Flux Density ◽  
Three Dimensional ◽  
Air Gap ◽  
Magnetic Flux Density ◽  
Two Dimensional ◽  
Distribution Uniformity ◽  
Three Dimensional Models ◽  
And Shifts ◽  
Flux Density Distribution

The objective of this work is to investigate the influence of slotted air gap constructive parameters on magnetic flux density of rotating machines. For this purpose, different approaches were used to solve the air gap field diagram using finite element method and the magnetic field distribution uniformity was evaluated by Carter's factor calculation on two-dimensional and three-dimensional models. Sensitivity analysis of slot constructive parameters was performed and results show that slot geometry modifies the magnetic flux on air gap and shifts the air gap magnetic equipotential midline of double slotted machines. Finally, minimization of Carter’s factor on two-dimensional model presents an optimized slot geometry with a near uniform magnetic flux density distribution.

Three-Dimensional Magnetic Field Analysis for Local Induction Heating of Steel Sheet by Using Magnetic Flux Concentration Plate

2014 ◽  
Vol 792 ◽  
pp. 87-92 ◽  
Author(s):  
Yuichiro Kai ◽  
Yuji Tsuchida ◽  
Takashi Todaka ◽  
Masato Enokizono
Keyword(s):  
Magnetic Flux ◽  
Mechanical Stress ◽  
Induction Heating ◽  
Steel Sheet ◽  
Electrical Steel ◽  
Three Dimensional ◽  
Field Analysis ◽  
Magnetic Field Analysis ◽  
Flux Concentration ◽  
Electrical Steel Sheet

In general, the magnetic properties of electrical steel sheets are strongly influenced by mechanical stress. We have reported the measurement results of vector magnetic properties of a non-oriented electrical steel sheet under stress conditions. From these results, it is possible to control the vector magnetic property by applying local mechanical stress. Therefore, we next focus on an induction heating technique that applies mechanical stress in a non-oriented electrical steel sheet. It is very important to control the eddy current distribution inside the non-oriented electrical steel sheet. This paper presents a magnetic flux concentration plate structure to control the eddy current in steel sheets by using an induction heating technique. The magnetic flux concentration plate structure is investigated in a three-dimensional magnetic field analysis by the finite element method.

scholarly journals Development of Si Gradient Steel Sheet with High Saturation Magnetic Flux Density and Low Iron Loss at High Frequency

Materia Japan ◽  
2014 ◽  
Vol 53 (3) ◽  
pp. 110-112 ◽  
Author(s):  
Tatsuhiko Hiratani ◽  
Yoshihiko Oda ◽  
Misao Namikawa ◽  
Shouji Kasai ◽  
Hironori Ninomiya
Keyword(s):  
Magnetic Flux ◽  
Flux Density ◽  
High Frequency ◽  
Steel Sheet ◽  
Iron Loss ◽  
Magnetic Flux Density ◽  
High Saturation
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