Calculation of the Three-Dimensional Electromagnetic Field Distribution in a Screw Electromechanical Converter with External Massive Rotor

To analyze the variation of electromagnetic field distribution, a mathematical model of the eddy current brake (ECB) is established and the two-dimensional simulation and three-dimensional simulation are comparatively analyzed. Then the curves of the braking torque of the ECB at different speeds are obtained by the simulations. The characteristics of two-dimensional and three-dimensional simulation of the electromagnetic field of the ECB are summarized by contrasted comparative curves between simulation date and test date. The analysis is helpful to optimizing the application of electromagnetism by using software.

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SNOM INVESTIGATION OF THE ELECTROMAGNETIC FIELD INTENSITY AND POLARIZATION DISTRIBUTION IN THE VICINITY OF NANOSTRUCTURES

International Journal of Nanoscience ◽

10.1142/s0219581x04001870 ◽

2004 ◽

Vol 03 (01n02) ◽

pp. 105-113 ◽

Cited By ~ 6

Author(s):

M. V. BASHEVOY ◽

A. A. EZHOV ◽

S. A. MAGNITSKII ◽

D. A. MUZYCHENKO ◽

V. I. PANOV ◽

...

Keyword(s):

Electromagnetic Field ◽

Field Distribution ◽

Near Field ◽

Qualitative Difference ◽

Fdtd Method ◽

Three Dimensional ◽

Polarization Distribution ◽

Electromagnetic Field Distribution ◽

Surface Steps ◽

Gap Control

The experimental and calculated results of the investigation of electromagnetic field distribution including its polarization characteristics in the vicinity of the nanostructures are presented. The experimental investigation was realized by aperture type scanning near field optical microscopes (SNOMs) which operated in collection mode. Normal resolution which allows us to image down to 0.3 nm height surface steps was demonstrated for the shear force probe to surface gap control system of the SNOM. Theoretical computation of the electromagnetic field distribution was realized by finite-difference time-domain (FDTD) method. The experimental three-dimensional maps of intensity and polarization distribution as a result of light diffraction at nanoaperture in the metal screen, dielectric and metallized nanocylinders were obtained. The qualitative difference between the orthogonal polarized component distributions near nanoaperture was experimentally shown. The electromagnetic field concentration in the proximity of the dielectric nanocylinders was observed. This observation gives a good fit with the results of FDTD computations. A spiral type electromagnetic field distribution pattern was experimentally observed in the proximity of metallized nanocylinders, which is unexpected from both experimental and theoretical points of view.

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High temperature machines: topologies and preliminary design

Open Physics ◽

10.1515/phys-2019-0068 ◽

2019 ◽

Vol 17 (1) ◽

pp. 657-669 ◽

Cited By ~ 1

Author(s):

Marcin Lefik ◽

Krzysztof Komeza ◽

Ewa Napieralska Juszczak ◽

Daniel Roger ◽

Piotr Napieralski ◽

...

Keyword(s):

Electromagnetic Field ◽

High Temperature ◽

Field Distribution ◽

Three Dimensional ◽

Preliminary Design ◽

Electromagnetic Field Distribution ◽

The Impact ◽

Three Dimensional Simulations

Abstract The paper presents the design of a machine that can work at high temperature. The impact of various topologies and materials on electromagnetic field distribution and losses was analyzed. Two and three-dimensional simulations were carried out. The results obtained were discussed.

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