Results 21 to 30 of about 2,643 (215)

Optimization of electromagnetic structure of magnetic levitation belt conveyor

open access: yesGong-kuang zidonghua, 2021
The conventional magnetic levitation belt conveyor adopts the electromagnetic structure composed of permanent magnets and electromagnets, which has the problems of easy heat generation and high current loss under the working conditions with high demand ...
HU Kun, JIANG Hao, JI Chenguang, PAN Ze
doaj   +1 more source

BACH ARRAY LINEAR GENERATOR FOR WAVE ENERGY CONVERTERS [PDF]

open access: yesJournal of Engineering Research - Egypt, 2015
linear generators have been proposed as a proper power takeoff system for direct-drive wave energy conversion. Coupled directly to a reciprocating wave energy device, it was declared that linear generators could be a valuable replacement for hydraulic ...
Ahmed ElGebaly, Mohamed El-Nemr
doaj   +1 more source

Hybrid manufacturing of Halbach arrays using sintered NdFeB magnets and additively manufactured soft magnet frames [PDF]

open access: yesAIP Advances
Using sintered neodymium–iron–boron (NdFeB) cube magnets and additively manufactured polylactic acid (PLA) and steel frames, we investigate hybrid manufacturing approaches for enhancing magnetic fields in cylindrical Halbach arrays while reducing ...
Levi Cosgrove   +6 more
doaj   +1 more source

The efficiency and the demagnetization field of a general Halbach cylinder [PDF]

open access: yes, 2015
The maximum magnetic efficiency of a general multipole Halbach cylinder of order $p$ is found as function of $p$. The efficiency is shown to decrease for increasing absolute value of $p$. The optimal ratio between the inner and outer radius, i.e.
Bahl, C. R. H., Bjørk, R., Smith, A.
core   +2 more sources

Analysis of Halbach Permanent Magnet Array with Convex Type Section

open access: yesJournal of Physics: Conference Series, 2020
Abstract This paper proposes Halbach permanent magnet arrays with convex type section. The magnetic field is modeled according to Ampere’s hypothesis of molecular current. Based on the model, the fundamental component of the magnetic flux density and the sinusoidal distortion rate are selected as evaluation indexes.
Ningran Song   +8 more
openaire   +1 more source

Superconducting Bearing Design for Outer Rotor Flywheel Using Lumped Parameter Techniques [PDF]

open access: yes, 2014
This paper describes the application of lumped parameter modeling techniques to designing high temperature superconducting bearings for outer-rotor flywheel energy storage systems.
Chen, D, Longoria, R. G.   +2 more
core   +1 more source

Optimum Design for Slot-type of Stator Based on PM Motor with Halbach Structure

open access: yesMATEC Web of Conferences, 2015
The performance of permanent magnet motor is directly influenced by the PM structure of rotor and the slot type of stator. An emerging rotor magnetization type of PM motor is Halbach structure, which has obvious advantages in comparison to ordinary ...
Zhu Yongxin, Qiao Mingzhong
doaj   +1 more source

Ultracold neutron depolarization in magnetic bottles [PDF]

open access: yes, 2012
We analyze the depolarization of ultracold neutrons confined in a magnetic field configuration similar to those used in existing or proposed magneto-gravitational storage experiments aiming at a precise measurement of the neutron lifetime.
Desai, A. M.   +4 more
core   +3 more sources

On the possibility of Vacuum-QED measurements with gravitational wave detectors [PDF]

open access: yes, 2014
Quantum electro dynamics (QED) comprises virtual particle production and thus gives rise to a refractive index of the vacuum larger than unity in the presence of a magnetic field.
Grote, Hartmut
core   +2 more sources

Linear consequent pole Halbach array flux reversal machine

open access: yesThe Journal of Engineering, 2019
This paper presents a linear variable reluctance permanent magnet (LVRPM) machine where the armature winding and inset Halbach array permanent magnets (PMs) are mounted on E-core stators.
Mohammad Abdul Hakim Raihan   +3 more
doaj   +1 more source

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