Results 1 to 10 of about 451,971 (148)
Pull-in control due to Casimir forces using external magnetic fields
Applied Physics Letters, 2009 We present a theoretical calculation of the pull-in control in capacitive micro switches actuated by Casimir forces, using external magnetic fields. The external magnetic fields induces an optical anisotropy due to the excitation of magneto plasmons ...
R Esquivel-Sirvent
exaly +3 more sources
Planar Micro-Positioning Device Based on a 3D Digital Electromagnetic Actuator
Actuators, 2021 In this paper, a novel micro-positioning device based on a 3D digital actuator is presented. The proposed system allows realizing planar motions of micro-objects, which could be implemented in several applications where micro-positioning tasks are needed
Ajinkya Deshmukh +4 more
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СТРУМИ ТА ЕЛЕКТРОМАГНІТНІ ЗУСИЛЛЯ В СИСТЕМАХ МАГНІТНО-ІМПУЛЬСНОЇ ОБРОБКИ З ФЕРОМАГНІТНОЮ ПЛАТФОРМОЮ
Праці Інституту електродинаміки Національної академії наук України, 2022 The action of high-density pulsed currents (109 A/m2) leads to the appearance of the electro-plastic effect in metal products. It is proposed to use magnetic pulse treatment of nonmagnetic plates by electromagnetic inductors with a U-shaped magnetic ...
І.П. Кондратенко +2 more
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Forced Magnetic Reconnection [PDF]
Physica Scripta, 1982 By studying a simple model problem, the time evolution of magnetic field islands which are induced by perturbing the boundary surrounding an incompressible plasma with a resonant surface inside is examined. The reconnection and island formation process for sufficiently small boundary perturbations occurs on the tearing mode time scale defined by Furth,
Hahm, T. S., Kulsrud, R. M.
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IET Electric Power Applications, 2021 The permeability of the iron is usually assumed to be infinite by the linear subdomain technique, leading to the neglect of magnet saturation. This study presents an analytical model of a segmented Halbach array permanent magnet machine by considering ...
Heshan Zhang +5 more
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Analysis and inhibition of radial electromagnetic force in composite magnetic coupler
IET Electric Power Applications, 2023 A new inhibition method was proposed for the problem of harmonic of radial electromagnetic force during the operation of the composite magnetic coupler.
Shuang Wang +5 more
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Magnetic forces in paramagnetic fluids
Journal of Physics: Condensed Matter, 2022 Abstract An overview of the effect of a magnetic field gradient on fluids with linear magnetic susceptibilities is given. It is shown that two commonly encountered expressions, the magnetic field gradient force and the concentration gradient force for paramagnetic species in solution are equivalent for incompressible fluids. The magnetic
Tim A Butcher, J M D Coey
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New elements within finite element modeling of magnetostriction phenomenon in BLDC motor
Open Physics, 2020 Reluctance forces are the main cause of vibration in electrical machines. The influence of magnetostriction is still the matter of controversy. In the article, program Ansys (typical for finite element method) was used to analyze stator deformation due ...
Jerzy Podhajecki, Stanislaw Rawicki
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IET Electric Power Applications, 2022 The magnetic saturation of iron‐core will reduce the maximum output force, influence the linear force characteristic and control precision of the magnetic bearing.
Shilei Xu, Jinji Sun, Zhipeng Wang
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ON FORCE-FREE MAGNETIC FIELDS [PDF]
Proceedings of the National Academy of Sciences, 1958 S>The possibllity that cosmic magnetic fields, which occur in regions of low density, may be force-free is considered. This theory raises the questions of whether a magnetic field in an isolated piece of highly ionized matter (in the absence of external forces) tends to a force-free state from an arbitrary initial state and how alpha , a function of ...
Chandrasekhar, S., Woltjer, L.
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