Shape optimization of soft magnetic composite inserts for electromagnetic stirrer with traveling magnetic field

Author(s):  
Kirill Bolotin ◽  
Evgeniy Leonidovich Shvidkii ◽  
Igor Sokolov ◽  
Sergey Alekseevich Bychkov

Purpose The purpose of this paper is to search optimal shape of soft magnetic composite-based inserts used to compensate the working gap between the liquid metal and the induction stirrer in metallurgical installations. Design/methodology/approach The study was based on numerical simulation of electromagnetic processes in frequency domain. To optimize inserts shape, the Nelder–Mead method was used. The maximum of integral electrodynamic force along x-axis was chosen as the objective function. All simulations were performed in finite element software package Comsol Multiphysics. Findings Optimal inserts shape was determined, at which the value of integral electrodynamic force along x-axis increased by 20% from 692  to 792 N. Originality/value Magnetic concentrators based on soft magnetic composite materials have long been used in high-frequency systems; at the same time, their use in low-frequency systems has not been previously considered in detail. The study of the shape effect of concentrators on the effectiveness of electromagnetic field in a liquid metal in a three-dimensional formulation was carried out for the first time.

2011 ◽  
Vol 109 (7) ◽  
pp. 07B503 ◽  
Author(s):  
Yongjian Li ◽  
Zhi Wei Lin ◽  
Hongxun Liu ◽  
Yi Wang ◽  
Youguang Guo ◽  
...  

2012 ◽  
Vol 48 (4) ◽  
pp. 1335-1343 ◽  
Author(s):  
Marco Actis Grande ◽  
Róbert Bidulsky ◽  
Andrea Cavagnino ◽  
Luca Ferraris ◽  
Paolo Ferraris

2020 ◽  
Vol 64 (1-4) ◽  
pp. 483-492
Author(s):  
Hayaho Sato ◽  
Akito Maruo ◽  
Hajime Igarashi

This paper presents the three-dimensional modeling of soft magnetic composite (SMC) based on the discrete element method. The proposed method makes it possible to take the possible contact among the magnetic particles in SMC as well as the distributed particle size into consideration. Based on this modeling, the macroscopic B-H characteristics is computed with the finite element method considering magnetic saturation. It is shown that the three-dimensional model of SMC can have larger initial permeability in comparison with the two-dimensional model even if they have the same filling factor.


Author(s):  
Sean Michael Muyskens ◽  
Tareq Ibrahim Eddir ◽  
Robert Charles Goldstein

Purpose This paper aims to demonstrate the benefits of using different impeder materials for induction tube welding systems. Design/methodology/approach To show the difference in using various impeder materials, a new approach was taken to model tube welding systems in two and three dimensions. Three-dimensional (3-D) electromagnetic models were used to determine the current distribution along the weld vee as well as the permeability of the tube along the length of the welding system. Two-dimensional (2-D) coupled electromagnetic plus thermal models with rotational movement were used to determine the temperature distribution in the heat-affected zone. Findings Simulation results suggest upwards of 25 per cent system power savings when using a soft magnetic composite (SMC) impeder rather than the traditional ferrites. Research limitations/implications There is currently a lack of experimental data to validate the models, but future work will include comparison of models to real-world trials. Practical implications When dealing with tube welding systems, there are possibilities to improve process efficiency or increase production quality and output by improving the impeder material. Originality/value While simulations of tube welding systems have been done previously, studies on improving impeder materials are rarely carried out. This paper brings to light possible improvements to be made to induction tube welding systems.


2006 ◽  
Vol 99 (8) ◽  
pp. 08D909 ◽  
Author(s):  
Z. W. Lin ◽  
J. G. Zhu ◽  
Y. G. Guo ◽  
X. L. Wang ◽  
S. Y. Ding

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