Magnetic Field Continuity Conditions in Finite-Element Analysis

Lefèvre, Yvan; Hénaux, Carole; Llibre, Jean-François

doi:10.1109/tmag.2017.2762084

Cited by 13 publications

(4 citation statements)

References 5 publications

(10 reference statements)

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“…In nite element analysis, the test bench support can be regarded as the plane containing the constraint. The constraint form is a xed geometric body [33]. The modi ed base body of the new scraper consists of a type II scraper with chain center distance = 280 ± 1.0 mm and length L = 1184 mm.…”

Section: Static Stress Analysis Schemementioning

confidence: 99%

The optimal design model for a new type of scraper and research on its material properties

Hao

Song

Liu

et al. 2022

Preprint

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Mining scrapers as an important part of scraper conveyors are highly prone to wear and fatigue failure. A new scraper capable of turning sliding friction into rolling friction was designed to limit wear and reduce failure rate. To determine the safety and reliability of the new scraper, numerical pulling force measurement was made on its physical model and finite element analysis was performed on its 3D model based on SolidWorks Simulation. The results are then compared with data of the traditional scraper. Numerical pulling force measurement results indicated impressively lower friction for the new scraper. Stress, strain, and displacement distributions obtained by static stress analysis based on SolidWorks Simulation proved conformance with the strength and deflection standards. Damage percentage and total life nephograms yielded from fatigue analysis indicated no significant life reduction. Numerical pulling force measurement combined with analysis based on SolidWorks Simulation can help reduce the production cost and development cycle. It plays a great role in determining the safety, reliability, and stability of the new scraper.

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Section: Static Stress Analysis Schemementioning

confidence: 99%

The optimal design model for a new type of scraper and research on its material properties

Hao

Song

Liu

et al. 2022

Preprint

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“…In fact, the continuity of the normal component of the magnetic flux density b n is strongly imposed using the vector potential weak formulation and tangential component of the magnetic field strength h t is strongly imposed using the scalar potential weak formulation. This issue is not solved and is still a current research topic (Martinez et al , 2008; Lefevre et al , 2018).…”

Section: Problemmentioning

confidence: 99%

Axial claw pole motor: harmonic torque estimation using finite element method

Giraud

Ristagno

Netter

et al. 2020

COMPEL

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Purpose This paper aims to propose a method to evaluate the information obtained on harmonics calculations and to estimate the precision of results using finite element method for an innovative motor topology in which some well-known meshing rules are difficult to apply. Design/methodology/approach The same magnetostatic problem is solved with several mesh sizes using both scalar and vector potentials magnetics formulations on a complex topology, an axial claw pole motor (ACPM). The proposed method lies in a comparison between the two weak formulations to determine what information is obtained on harmonics calculations and to estimate its precision. Moreover, an original mesh method is applied in the air gap to improve the numerical results. Findings The precision on harmonics calculations using finite element method on an ACPM is estimated. For the proposed motor and mesh, only the mean value (even with large mesh) and the first harmonic (with fine mesh) of torque are calculated with a good accuracy. This results confirm that the non-respect of the meshing rules have a strong impact on the results and that scalar and vector potentials magnetics formulations do not give exactly the same results. Before using torque harmonics values in vibration calculations, a finite element model has to be validated by using both fomulations. Research limitations/implications This method is time-consuming and only applied on an ACPM in this work. Originality/value The axial claw pole motor, for which the classic meshing rules cannot be applied, is a complex topology very under-studied. To improve the calculation of space harmonics, the authors proposed to split the airgap into four parts. Then in the two central parts, the meshing step of the structured mesh is equal to the rotating step.

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“…The finite element analysis method is a mathematical approximation method that simulates the real physical field by solving partial differential equations. In recent years, it has been widely used in various engineering and technical fields [20][21][22][23][24]. Although in the field of magnetic separation, ANSYS is a more widely used finite element analysis software, it mostly stays in the simulation of a single physical field [18,[25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Multiphysics Modeling Simulation and Optimization of Aerodynamic Drum Magnetic Separator

Xue

Dong

et al. 2021

Minerals

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Aerodynamic Drum Magnetic Separator (ADMS) uses an adjustable air flow to enhance the separation of magnetic particles from gangue. In order to explore the matching relationship between the magnetic field, the flow field, and the gravity field, as well as the capture and separation behavior of particles under the action of multi-physics, a related simulation model is established using the finite element software COMSOL Multiphysics and the accuracy of the simulation results is verified by measurement, formula calculation, and magnetic separation experiment. The trajectories and capture probabilities of particles in different magnetic fields and flow fields are calculated, as well as the critical airflow velocity corresponding to a specific capture probability. In addition, the magnetic field characteristics and particle capture effect of N-S alternate arrangement and N-N homopolar arrangement are compared by optimizing the permutation of magnetic poles. This model may provide a reference for the accurate control of magnetic separation enhanced by a coupling force field.

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Magnetic Field Continuity Conditions in Finite-Element Analysis

Cited by 13 publications

References 5 publications

The optimal design model for a new type of scraper and research on its material properties

The optimal design model for a new type of scraper and research on its material properties

Axial claw pole motor: harmonic torque estimation using finite element method

Multiphysics Modeling Simulation and Optimization of Aerodynamic Drum Magnetic Separator

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