Results 81 to 90 of about 183,928 (205)

Constructing and Testing a Permanent-Magnet Railgun [PDF]

open access: yes, 2013
A modified magnetic railgun has been built and investigated. Permanent magnets were used to supply the magnetic field and a car battery was used to provide the current. The projectile has been successfully shot out.
Wu, Yangfan
core   +1 more source

A flexible flux adjustable variable flux leakage starter‐generator for helicopters

open access: yesIET Electric Power Applications
A variable flux leakage starter‐generator structure designed for helicopters is proposed. The research focuses on investigating the current distribution mechanism of the d‐q axis to determine the feasibility of incorporating variable flux leakage (FL) in
Hainiu Chen   +4 more
doaj   +1 more source

Nature of the electromagnetic force between classical magnetic dipoles

open access: yes, 2017
The Lorentz force law of classical electrodynamics states that the force F exerted by the magnetic induction B on a particle of charge q moving with velocity V is given by F=qVxB.
Mansuripur, Masud
core   +1 more source

The Permanent Magnet Operating Mechanism of Double Coil Parallel Driven at a High Speed

open access: yesJournal of Harbin University of Science and Technology, 2017
:Operating mechanism is the main part of breaker,and the quality of breaker will directly influence the safe operation of power system. Because of the continuous improvement requirements of switch,in order to mak this actuator faster and more powerful ...
WEI Xau-Lao, WAN Ruu-uau
doaj   +1 more source

Research on temperature field of permanent magnet in disc-type speed-regulation magnetic coupler

open access: yesGong-kuang zidonghua, 2017
In view of problems that temperature of permanent magnet is too high and easy to fail when disc-type speed-regulation magnetic coupler with high power is running, a magnetic circuit method was used to make theoretical derivation for eddy-current loss of ...
GUO Yongcun   +3 more
doaj   +1 more source

Large gap magnetic suspension system [PDF]

open access: yes
The design of a large gap magnetic suspension system is discussed. Some of the topics covered include: the system configuration, permanent magnet material, levitation magnet system, superconducting magnets, resistive magnets, superconducting levitation ...
Abdelsalam, Moustafa K., Eyssa, Y. M.
core   +1 more source

Application of Permanent Magnet Bafe12o19 and Ndfeb on Small Scale Low Speed Permanent Magnet Generator [PDF]

open access: yes, 2009
Designing and manufacturing of low speed permanent magnet generator (PMG) for small scale electric power plant have been conducted. In this paper, the characteristics of generator using permanent magnet of barium ferit (BaFe12O19) and neodymium iron ...
Idayanti, N. (Novrita)   +1 more
core  

Fresnel's equations in statics and quasistatics

open access: yes, 2019
Fresnel's equations describe reflection and transmission of electromagnetic waves at an interface between two media. It turns out that these equations can be used in quasistatics and even statics, for example to straightforwardly calculate magnetic ...
Skaar, Johannes
core   +1 more source

The Ventilation Structure Research of Permanent Magnet Traction Motor Used in Rail Transportation

open access: yesJournal of Harbin University of Science and Technology, 2017
In order to effectively improve the ventilation performance of permanent magnet synchronous traction motor used in the rail transit,this paper,taking a 600 kW permanent magnet synchronous traction motor as an example,and based on computational fluid ...
DING Shu-ye   +3 more
doaj   +1 more source

Very high voltage latching relay [PDF]

open access: yes, 1974
Relay consists of high voltage reed switch actuated by rotating permanent magnet mounted on stepper motor shaft, with actuation assembly isolated from high voltage circuit.
Lovell, R. R.   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy