Force Calculations in 3-D Cylindrical Structures Using Fourier Analysis and the Maxwell Stress Tensor

Meessen, K. J.; Paulides, Jjh Johannes; Lomonova, E. A.

doi:10.1109/tmag.2012.2206821

Cited by 122 publications

(43 citation statements)

References 34 publications

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“…The Maxwell stress tensor [22] is extensively used in the calculation of torque in electromagnetic machines [23]. The tensor expressed in cylindrical coordinates and neglecting any z-axis component field due to 2D finite element studies, the resultant shear rotor stress is written;…”

Section: Maxwell Stress Torque Calculationmentioning

confidence: 99%

A Seminumerical Finite-Element Postprocessing Torque Ripple Analysis Technique for Synchronous Electric Machines Utilizing the Air-Gap Maxwell Stress Tensor

2014

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Section: Maxwell Stress Torque Calculationmentioning

confidence: 99%

A Seminumerical Finite-Element Postprocessing Torque Ripple Analysis Technique for Synchronous Electric Machines Utilizing the Air-Gap Maxwell Stress Tensor

2014

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“…In the coupled model of this article, F is the electric force. The electric force can be expressed as [20]:…”

Section: Coupling Modelmentioning

confidence: 99%

Simulation Analysis of Capacitance Method in Two-Phase Flow Concentration Measurement by Coupled Fields

Wang

et al. 2016

Preprint

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This paper proposed three-dimensional numerical simulation method by coupling of electrostatic and fluid fields to evaluating the performance of electrical sensor in the concentration measurement of gas/solid two-phase flow. Compared with the static numerical simulation, this real-time dynamic 3-D simulation method can research on a designed capacitance sensor combining the dynamic characteristics of the two-phase flows for concentration measurement. Several fluid-electrostatic models of transmission pipes with different sensor structures are built. Under different test positions and different particle concentrations, the flow characteristics and the corresponding electric signals can be obtained, and the correlation coefficient between the concentration values and the capacitance values are used for performance evaluation of the sensors. The effects of flow regimes on concentration measurement are also been investigated in this paper. To validate the results of simulation, an experimental platform with horizontal straight pipe for phase volume concentration measurement of solid/air two-phase flow is built, and the experimental results agree well with simulation conclusions. The simulation and test results show that the coupling models can give constructive reference opinions for the sensor design and collection of installation position in different transmission pipelines, which are very important for the practical process of pneumatic conveying system.

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“…It is obtained by the result of electromagnetic field analysis. The thrust characteristics is calculated by the Maxwell stress method [8]. The current in the voice coil is sinusoidal wave which the counterclockwise is positive, amplifier is 3 A, and frequency is 60 Hz.…”

Section: Thrust Characteristicsmentioning

confidence: 99%

Improvement Efficiency and Miniaturization of Bone Conduction Speaker

Yoshikawa

Kitagawa

Takeshita

et al. 2015

Journal of the Japan Society of Applied Electromagnetics and Me

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This paper presents a new structure of bone conduction speaker. It is smaller than the conventional structure by removing an extra space. The magnetic path of this structure is not wasteful because the coil case is attached a cover and this structure uses the magnetic material as the vibrating plate. This structure operates by flowing the audio current into the voice coil. That reason is the change of magnetic attractive force between the magnetic pole of yoke and magnet. The authors revealed various characteristics of this structure by the electromagnetic field analysis and structural analysis by using the 3-dimensional finite element method (3D-FEM). As the result of electromagnetic analysis, the leakage flux of this structure is lower than the conventional structure by 55.2 %. As the result of structural analysis, the sound pressure level (SPL) of this structure is higher than the conventional structure by 12.6 %. Consequently, the performance of this structure is improved.

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Force Calculations in 3-D Cylindrical Structures Using Fourier Analysis and the Maxwell Stress Tensor

Cited by 122 publications

References 34 publications

A Seminumerical Finite-Element Postprocessing Torque Ripple Analysis Technique for Synchronous Electric Machines Utilizing the Air-Gap Maxwell Stress Tensor

A Seminumerical Finite-Element Postprocessing Torque Ripple Analysis Technique for Synchronous Electric Machines Utilizing the Air-Gap Maxwell Stress Tensor

Simulation Analysis of Capacitance Method in Two-Phase Flow Concentration Measurement by Coupled Fields

Improvement Efficiency and Miniaturization of Bone Conduction Speaker

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