Results 251 to 260 of about 39,293 (293)

An Extension of Cauchy's Integral Formula by Means of Maxwell's Stress Tensor

Journal of the London Mathematical Society, 1946
Not ...
openaire   +2 more sources

Force Calculation in 3-D Magnetic Equivalent Circuit Networks With a Maxwell Stress Tensor

IEEE Transactions on Energy Conversion, 2009
Magnetic equivalent circuit (MEC) models are increasingly valuable for analysis and design of electromechanical devices, particularly electrical machines, because of their moderate computational effort and reasonable accuracy. Force and torque calculations in prior MEC implementations are almost exclusively based on the virtual work method (VWM ...
M. Amrhein, P.T. Krein
openaire   +1 more source

Extended Formulas to Compute Resultant and Contact Electromagnetic Force and Torque From Maxwell Stress Tensors

IEEE Transactions on Magnetics, 2017
Force density calculus in permanent magnets and other nonlinear magnetic media is still a challenge despite two hundred years of electromagnetic theory. While generally accepted formulas to compute the total electromagnetic force on a domain exist in the literature, calculating the local distribution of forces that are needed, for instance, to couple ...
A. Bermudez, A. L. Rodriguez, I. Villar
openaire   +1 more source

Simple derivation of the Maxwell stress tensor and electrostrictive effects in crystals

American Journal of Physics, 1977
Local equilibrium and energy considerations in an elastic dielectric crystal lead to a simple derivation of the Maxwell stress tensor in anisotropic dielectric solids. The resulting equilibrium stress–strain relations in the presence of electric fields are applied to determine the deformations of a charged parallel plate capacitor and to find the ...
openaire   +1 more source

General expressions for dielectrophoretic force and electrorotational torque derived using the Maxwell stress tensor method

Journal of Electrostatics, 1997
Abstract We explore the application of the Maxwell stress tensor (MST) method to dielectrophoresis (DEP) and electrorotation (ROT) studies. By integrating the Maxwell stress tensor over the surface of a dielectric particle, we derive the general expressions for DEP force and ROT torque generated by electrical fields of arbitrary configuration.
Xujing Wang, Xiao-Bo Wang, Peter R.C. Gascoyne   +2 more
openaire   +1 more source

Interpretation of ac dielectrophoretic behavior of tin oxide nanobelts using Maxwell stress tensor approach modeling

Sensors and Actuators B: Chemical, 2012
In order to explain the dielectrophoretic behavior of ethanol suspended tin oxide (SnO2) nanobelts observed experimentally, modeling of the ac dielectrophoresis (DEP) phenomenon is carried out. Nanobelts are a type of ribbon like semiconducting oxide nanowire with rectangular cross-sections.
Surajit Kumar, Peter J. Hesketh
openaire   +1 more source

Torque measurements in synchronous generators using giant magnetoresistive sensor arrays via the Maxwell stress tensor

2013 IEEE Power & Energy Society General Meeting, 2013
Power system oscillations arise from various sources. One contributor that is difficult to quantify during operation is the induced (air-gap) torque. This paper presents a new approach for measuring the instantaneous air-gap torque in real-time for synchronous generators.
Wendyam F. Traore, Roy McCann
openaire   +1 more source

Reviewing the Forces of Electret Motors by Applying Maxwell Stress Tensor and Delta Function

Japanese Journal of Applied Physics, 1995
The forces exerted on the electret rotors of the conventional Gubkin- and Jefimenko-type electret motors and the intermediate-type motor have been derived systematically using the Maxwell stress tensor and delta function. The delta function is effective in deriving the force due to the edges of a pair of stator electrodes of the Gubkin-type motor.
openaire   +1 more source

Investigation of flux density for 3-D electromagnetic force calculation using Maxwell stress tensor

1995
A new useful applying method of the flux density in Maxwell stress tensor for obtaining the electromagnetic force has been developed in the 3-D finite element method with edge elements. The accuracy of this method is clarified by comparing with the conventional method in two models.
T. Yamaguchi, Y. Kawase, Y. Hayashi
openaire   +1 more source

Initial Sizing of Tubular Linear Actuators Using Simplified Maxwell Stress Tensor Method

Electric Power Components and Systems, 2022
Yi Chen Wu, Paulo Roberto Eckert, Aly Ferreira Flores Filho   +2 more
openaire   +1 more source