Numerical coupling models for analyzing dynamic behaviors of electromagnetic actuators

Srairi, K.; Féliachi, Mouloud

doi:10.1109/20.717852

Cited by 24 publications

(22 citation statements)

References 12 publications

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“…The resolution of these equations requires the knowledge of the magnetic force F magn (q, I) and the magnetic flux (q, I), which are functions of the unknown variables of the problem: the current I and the mechanical displacement q. For sets of discrete values of the excitation I and of the displacement of the air gap e, taken within a range of realistic variations, these functions (F magn , ) can be evaluated based on the magnetic field computed in the framework of magnetostatics theory [2,8,9]. This discretization makes it possible to estimateby interpolation-the magnetic force F magn and the …”

Section: Parameterization Coupled Approachmentioning

confidence: 99%

“…Many works have tackled this kind of coupled problem [3,8,17,18]. Most of the coupling models treat the problem in three steps.…”

Section: Transient Coupling Approachmentioning

confidence: 99%

“…4, an electromechanical relay is an electromechanical system that can always be separated into two subsystems (electromagnetic and mechanical) which interact with each other [3,8,17]. The electromagnetic subsystem is governed by Maxwell's equations whereas the mechanical subsystem obeys Newton's law.…”

Section: Introductionmentioning

confidence: 99%

“…A synthesis of the major points of these multiphysics models can be found in [2][3][4][5][6][7][8][9][10]. These models simultaneously solve the electric circuit, magnetic field and mechanical motion equations and take into account the nonlinear phenomena such as the effects of magnetic saturation.…”

Section: Introductionmentioning

confidence: 99%

“…Our methodology has been applied to the study of the PED PXC-1203 relay. The numerical predictions were validated using experimental data measured in the frequency range [2][3][4][5][6][7][8]. A parametric analysis of our model was performed and shows the influence of some factors, like the air gap and the rated voltage, that affect the performance of the relay under external mechanical vibrations.…”

mentioning

confidence: 99%

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Modelling of the Dynamic Behaviour of Electromechanical Relays for the Analysis of Sensitivity to Shocks and Vibrations

Wattiaux

Verlinden

2011

Exp Mech

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During their operating life, electromechanical relays (EMRs) are subjected to external mechanical vibrations that can induce undesirable vibratory responses in the movable part of the relay and thus produce an unwanted temporary break in electric connections. This paper presents a simplified multiphysics model dedicated to the prediction of the maximum vibration levels that these relays can undergo before a loss of contact occurs. Our methodology considers the magnetic aspects as well as the mechanical aspects. The dynamic behaviour of the movable part is modelled as a cantilever beam subjected at its extremity to an elastic force. The dynamic parameters were updated from the identification of the first natural modes of the movable part of the relay. The magnetic force acting on the movable part was computed using a one-dimensional approach with an equivalent magnetic circuit and was corroborated thanks to experimental measurements and two-dimensional Finite Element simulations. The interaction between the electromagnetic and mechanical phenomena was taken into account using a parameterization coupled approach. Our methodology has been applied to the study of the PED PXC-1203 relay. The numerical predictions were validated using experimental data measured in the frequency range [2][3][4][5][6][7][8]. A parametric analysis of our model was performed and shows the influence of some factors, like the air gap and the rated voltage, that affect the performance of the relay under external mechanical vibrations.

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Section: Parameterization Coupled Approachmentioning

confidence: 99%

“…Many works have tackled this kind of coupled problem [3,8,17,18]. Most of the coupling models treat the problem in three steps.…”

Section: Transient Coupling Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Modelling of the Dynamic Behaviour of Electromechanical Relays for the Analysis of Sensitivity to Shocks and Vibrations

Wattiaux

Verlinden

2011

Exp Mech

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Design of an estimator of the kinematics of AC contactors

Ruiz

Espinosa

2008

Int Trans Elec Energy Syst

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This paper develops an estimator of the kinematics of the movable parts of any AC powered contactor. This estimator uses easily measurable electrical variables such as the voltage across the coil terminals and the current flowing through the main coil of the contactor. Hence, a low cost microcontroller would be able to implement a control algorithm in order to reduce the undesirable phenomenon of contact bounce, which causes severe erosion of the contacts and dramatically reduces the electrical life and reliability of the contacts. To develop such an estimator is essential to have at our disposal a robust model of the contactor. Therefore, a rigorous parametric model that allows us to predict the dynamic response of the AC contactor is proposed. It solves the mechanic and electromagnetic coupled differential equations that govern the dynamics of the contactor by applying a Runge-Kutta-based solver. Several approaches have been described in the technical literature. Most of them are based on high cost computational finite elements method or on simplified parametric models. The parametric model presented here takes into account the fringing flux and deals with shading rings interaction from a general point of view, thus avoiding simplified assumptions.

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A FEM Based Network Approach for the Simulation of Miniaturized Electromagnetic Devices

Gollee¹,

Gerlach²

2001

System Design Automation

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Numerical coupling models for analyzing dynamic behaviors of electromagnetic actuators

Cited by 24 publications

References 12 publications

Modelling of the Dynamic Behaviour of Electromechanical Relays for the Analysis of Sensitivity to Shocks and Vibrations

Modelling of the Dynamic Behaviour of Electromechanical Relays for the Analysis of Sensitivity to Shocks and Vibrations

Design of an estimator of the kinematics of AC contactors

A FEM Based Network Approach for the Simulation of Miniaturized Electromagnetic Devices

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