Finite element analysis of the magnetic field distribution inside a rotating ferromagnetic bar

Superconducting Magnetic Energy Storage (SMES) system use conductive coils made of superconductor wire to store energy, its application entirely depends on the design and development of superconducting magnet, as the magnetic storage element, during the operation of the superconducting magnet generates relatively strong magnetic field. In this paper, a 1MJ class single solenoidal SMES with Bi2223/Ag conductor is presented. On the basis of electromagnetic theory, subsequently infers mathematical model of magnetic field distribution by ANSYS finite element analysis software, modeling a two-dimensional electromagnetic analysis of 44 double pancakes to get the magnetic field distribution patterns. The results of the analysis provide a reference for the structural design, optimization of a superconducting magnet and shielding of stray magnetic field.

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Comprehensive Investigations on Magnetic Field Distribution in a Solenoid

Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation ◽

10.1115/smasis2013-3038 ◽

2013 ◽

Cited By ~ 2

Author(s):

Xiaoyu Gu ◽

Yancheng Li

Keyword(s):

Magnetic Field ◽

Finite Element Analysis ◽

Finite Element ◽

Field Distribution ◽

Theoretical Investigation ◽

Experimental Testing ◽

Magnetic Field Distribution ◽

Element Analysis ◽

Design And Optimization ◽

The Magnetic Field

Finding engineering applications for a new class of smart material, magnetorheological elastomer (MRE), has been a major task for researchers in this field. Novel MRE devices, such as vibration absorbers and vibration isolators, have been proposed and fabricated to pioneer its engineering applications. In civil engineering, the author has proposed a novel MRE based isolator to be used in the base isolation system for mitigating the devastating effects of earthquakes on civil structures. For any MRE-based device, electromagnetic coil is evitable involved to provide magnetic field for the MRE materials. Comparing with magnetic circuit design in magnetorheological fluid (MRF) device, i.e. MR damper, MRE devices normally need a larger coil to energize the MRE materials, particularly for a large-scale MRE device. Therefore, investigation of the solenoid on the magnetic field distribution is of great importance for the design and development of MRE based device. In particular, provision of sufficient and uniform magnetic field is essential towards the success in designing MRF/MRE devices. To understand the mechanism of magnetic field generation in a solenoid is the key for device design and optimization. The main objective of this paper is to analytically investigate and experimentally validate the magnetic field distribution in a solenoid. The theoretical investigation starts from the analysis on an ideally thin cylindrical solenoid in order to obtain analytical results. To stimulate the coil which can be used in the design of MRE device, theoretical investigation is to conduct on a thick-wall cylindrical solenoid. Finite element analysis is also used to examine the magnetic field distribution in the solenoid. In order to verify the theoretical findings, experimental testing is conducted to acquire the magnetic field distribution in a sample solenoid. Results from analytical solution, finite element analysis and experimental testing agree very well. The findings provide valuable information for the design and optimization of the MRE device in which a solenoid is inevitably involved.

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Finite element analysis and calculation of the magnetic field distribution in smoothing inductors for electric traction

IEEE Transactions on Magnetics ◽

10.1109/20.34308 ◽

1989 ◽

Vol 25 (4) ◽

pp. 2864-2866 ◽

Cited By ~ 2

Author(s):

C.M. Arturi ◽

M. Ubaldini

Keyword(s):

Magnetic Field ◽

Finite Element Analysis ◽

Finite Element ◽

Field Distribution ◽

Magnetic Field Distribution ◽

Element Analysis ◽

Electric Traction ◽

The Magnetic Field

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Finite Element Analysis of Magnetic Field of Magnetic Sealing Drive Device

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.875-877.885 ◽

2014 ◽

Vol 875-877 ◽

pp. 885-889

Author(s):

Ding Zhong Tan ◽

Ying Qiu ◽

Qi Ming Wang

Keyword(s):

Magnetic Field ◽

Finite Element Analysis ◽

Finite Element ◽

Theoretical Calculation ◽

Field Distribution ◽

Magnetic Circuit ◽

Magnetic Field Distribution ◽

Ansys Software ◽

Element Analysis ◽

Drive Torque

Magnetic sealing drive torque is designed and calculated and analyzed, Magnetic circuit and whole structure of the drive are designed, simulating and analyzing to Magnetic circuit of Magnetic sealing drive by ANSYS software, Magnetic field distribution and the effect to torque in model is analyzed and researched. It is shown that the results between theoretical calculation and analysis of the finite element are quite close.

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Magnetic field distribution of magnetic encoder with TMR sensor using finite element analysis

Microsystem Technologies ◽

10.1007/s00542-020-04812-x ◽

2020 ◽

Vol 26 (8) ◽

pp. 2683-2701

Author(s):

Yirga Belay Muna ◽

Cheng-Chien Kuo

Keyword(s):

Magnetic Field ◽

Finite Element Analysis ◽

Finite Element ◽

Field Distribution ◽

Magnetic Field Distribution ◽

Element Analysis

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Experimental Research on the Magnetic Field Sensitive Polymeric Actuator

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.287-290.603 ◽

2011 ◽

Vol 287-290 ◽

pp. 603-607

Author(s):

Chun Lin Xia ◽

Yang Fang Wu ◽

Qian Qian Lu

Keyword(s):

Magnetic Field ◽

Finite Element Analysis ◽

Finite Element ◽

Energy Conversion ◽

Experimental Research ◽

Experimental Results ◽

Deformation Characteristics ◽

Analysis Software ◽

Element Analysis ◽

The Magnetic Field

Using domestic MFSP membrane as a medium of energy conversion, a kind of MFSP actuator was designed. The dedicated test equipment was constructed for experimental research, and the experimental results were given. The strip and circular MSFP membrane were analyzed qualitatively to obtain the deformation characteristics of membrane by finite element analysis software.

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Development of a hybrid vibration converter for real vibration source / Entwicklung eines Hybrid-Vibrationswandlers für eine echte Schwingungsquelle

tm - Technisches Messen ◽

10.1515/teme-2019-0050 ◽

2019 ◽

Vol 86 (s1) ◽

pp. 57-61 ◽

Cited By ~ 1

Author(s):

Sonia Bradai ◽

Slim Naifar ◽

Olfa Kanoun

Keyword(s):

Magnetic Field ◽

Finite Element Analysis ◽

Finite Element ◽

Energy Harvesting ◽

Resonant Frequency ◽

Ambient Vibration ◽

Vibration Source ◽

Frequency Bandwidth ◽

Element Analysis ◽

The Magnetic Field

AbstractHarvesting energy from ambient vibration sources is challenging due to its low characteristic amplitude and frequencies. In this purpose, this work presents a compact hybrid vibration converter based on electromagnetic and magnetoelectric principles working for a frequency bandwidth and under real vibration source properties. The combination of especially these two principles is mainly due to the fact that both converters can use the same changes of the magnetic field for energy harvesting. The converter was investigated using finite element analysis and validated experimentally. Results have shown that a frequency bandwidth up to 12 Hz with a characteristic resonant frequency at 24 Hz and a power density of 0.11mW/cm3 can be reached.

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The Comparison of Magnetic Leakage of Different Teeth Structures in Magnetic Fluid Seal

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.197-198.314 ◽

2011 ◽

Vol 197-198 ◽

pp. 314-317 ◽

Cited By ~ 1

Author(s):

Fei Fei Xing ◽

De Cai Li ◽

Wen Ming Yang ◽

Xiao Long Yang

Keyword(s):

Magnetic Field ◽

Finite Element Method ◽

Finite Element ◽

Theoretical Model ◽

Field Distribution ◽

Magnetic Fluid ◽

Magnetic Field Distribution ◽

Two Sides ◽

The Magnetic Field ◽

Sealing Gap

Based on the theoretical model, magnetic field distribution of rectangular teeth, two-sides dilated shape and one-side dilated shape teeth structure 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 rectangular teeth structure had the highest magnetic leakage. Moreover, the magnetic field distribution of sealing structures with rectangular stages on both the shaft and pole pieces under the same design and sealing gap were also calculated using the same method, whose result was compared with rectangular stages on pole pieces only. The comparison showed that the former did not have higher pressure capability obviously but led to higher magnetic leakage.

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Finite-Element Analysis of the Magnetic Field in a Magnetic Gear Mechanism

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.479-480.230 ◽

2013 ◽

Vol 479-480 ◽

pp. 230-233

Author(s):

Yi Chang Wu ◽

Bo Syuan Jian

Keyword(s):

Magnetic Field ◽

Finite Element Analysis ◽

Finite Element ◽

Permanent Magnets ◽

Design Parameters ◽

Element Analysis ◽

Magnetostatic Field ◽

Gear Mechanism ◽

Magnetic Gear ◽

The Magnetic Field

This paper presents finite-element analysis (FEA) of the magnetic field of a magnetic gear mechanism. An external type magnetic gear mechanism, which consists of two identical magnetic gears with sector-shaped permanent magnets, is introduced first. Then, the magnetostatic field distribution and transmitted torque of the magnetic gear mechanism are simulated by a commercial FEA package Ansoft/ Maxwell. Next, the effects of design parameters, including the air-gap length, the number of magnetic pole pairs, and the height of permanent magnets, on the maximum transmitted torque are discussed. The results of this work are beneficial to the design of magnetic gear mechanisms.

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Finite Element Analysis of Magnetization Reversal Effect Based on Ferromagnetic Specimens

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.620.127 ◽

2014 ◽

Vol 620 ◽

pp. 127-132

Author(s):

Xiao Wen Xi ◽

Shang Kun Ren ◽

Li Hua Yuan

Keyword(s):

Magnetic Field ◽

Finite Element Analysis ◽

Finite Element ◽

Magnetic Flux ◽

Magnetization Reversal ◽

Tensile Load ◽

Magnetic Flux Leakage ◽

Element Analysis ◽

The Magnetic Field ◽

Flux Leakage

Using large finite element analysis (FEA) software ANSYS, the stress-magnetization effect on 20# steel specimens with different shape notches is simulated under the geomagnetic field and tensile load. With the stimulation, the magnetic flux leakage fields at certain positions of the surface specimen were measured. Through analysis the relationship between the magnetic flux leakage fields of certain points with tensile stress, the results showed that the magnetic field value at certain positions of specimen surface first decreases and then increases along with the increase of stress, which is called magnetization reversal phenomenon; Different gaps and different positions of the specimen show different magnetization reversal rules; By measuring the maximal variation of the magnetic field value △Hmax at certain positions of the surface specimen and by analyzing its change law, we can roughly estimate specimen stress size and distribution regularity of stress. Moreover, this article also discusses the effect of lifts-off of the probe on the law of stress magnetization.

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