Dynamic stress in magnetic actuator computed by coupled structural and electromagnetic finite elements

Brauer, J.R.; Ruehl, J.J.; Juds, Mark A.; Heiden, Marina; Arkadan, A.A.

doi:10.1109/20.497420

Cited by 23 publications

(6 citation statements)

References 7 publications

(5 reference statements)

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“…Electromagnetic interface problems are of great importance due to a large variety of science and engineering applications. Typical examples include electromagnetic motors and actuators involving metal-air or metal-metal interface [20,40] and electromagnetic inverse scattering [38,61] that use electromagnetic waves to detect objection. Solving the H(curl) interface problem with an optimal convergence is a challenging goal that conventional unfitted mesh methods fail to meet, see Section 1.2 below.…”

Section: Model Problemsmentioning

confidence: 99%

Immersed Virtual Element Methods for Maxwell Interface Problems in Three Dimensions

Cao¹,

Chen²,

Guo³

2022

Preprint

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Finite element methods for Maxwell's equations are highly sensitive to the conformity of approximation spaces, and non-conforming methods may cause loss of convergence. This fact leads to an essential obstacle for almost all the interfaceunfitted mesh methods in the literature regarding the application to Maxwell interface problems, as they are based on nonconforming spaces. In this work, a novel immersed virtual element method for solving a 3D Maxwell interface problems is developed, and the motivation is to combine the conformity of virtual element spaces and robust approximation capabilities of immersed finite element spaces. The proposed method is able to achieve optimal convergence for a 3D Maxwell interface problem. To develop a systematic framework, the H 1 , H(curl) and H(div) interface problems and their corresponding problem-orientated immersed virtual element spaces are considered all together. In addition, the de Rham complex will be established based on which the HX preconditioner can be used to develop a fast solver for the H(curl) interface problem.

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Section: Model Problemsmentioning

confidence: 99%

Immersed Virtual Element Methods for Maxwell Interface Problems in Three Dimensions

Cao¹,

Chen²,

Guo³

2022

Preprint

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“…Many works in the literature have succeeded in modeling the dynamic behavior of contactors and the other kinds of electromagnetic devices such as actuators and solenoids. Previous works mainly proposed methods based on the finite element method (FEM) [2][3][4][5][6][7][8][9]. FEM give precise results and is basically used for design purposes, but it is time consuming and requires complex software.…”

Section: Introductionmentioning

confidence: 99%

An improved AC electromagnetic contactor model based on EMTP

Saengsuwan

2017

IEEJ Transactions Elec Engng

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This paper presents a new simulation approach of an AC electromagnetic contactor based on the Electromagnetic Transient Program (EMTP). To decouple the simulation from the magnetic circuit, the duality transformation technique is applied to transform the magnetic model into an electrical model. With this technique, the solutions of the proposed model are only on electric circuit, and model can interface directly with the surrounding components in EMTP. To enhance the model precision, both saturation and fringing flux effects are taken into account. Additionally, the estimation of general unknown parameters, namely shading ring resistance and load force, is proposed. The performance and accuracy of the proposed model are verified by comparing with finite element method (FEM) results and experiments. Finally, the model is applied for the case study of the sensitivity of a contactor during voltage sag. The results demonstrate good performance of the proposed model, and the approach can be further extended to other electromagnetic devices.

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“…Many works in the literature have succeeded to model its dynamic behaviors. However, these works are mainly based on the finite element method (FEM) [1–10]. FEM gives precise results and is basically used for design purposes, but it is time consuming and requires complex software toolsets.…”

Section: Introductionmentioning

confidence: 99%

A novel simulation of AC magnetic contactor based on electromagnetic transients program

Kanokbannakorn

Saengsuwan

Sirisukprasert

2014

IEEJ Transactions Elec Engng

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This paper proposes a new simulation approach for the AC magnetic contactor using the electromagnetic transients program (EMTP). The duality transformation technique is applied to convert a magnetic model into an electrical model. The great advantages of the proposed model are its capability of being directly simulated with other electrical components using EMTP and, therefore, its minimum level of complexity. To enhance the precision of the proposed model, the saturation of magnetic core and the fringing flux effects are taken into account. The performance and accuracy of the proposed model are verified by comparing them with those from finite element method (FEM) simulations and experiments. The results confirm that the proposed model has very good performance and the technique can be further applied to other magnetic components.

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Dynamic stress in magnetic actuator computed by coupled structural and electromagnetic finite elements

Cited by 23 publications

References 7 publications

Immersed Virtual Element Methods for Maxwell Interface Problems in Three Dimensions

Immersed Virtual Element Methods for Maxwell Interface Problems in Three Dimensions

An improved AC electromagnetic contactor model based on EMTP

A novel simulation of AC magnetic contactor based on electromagnetic transients program

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