Results 11 to 20 of about 887,443 (253)
A flexible flux adjustable variable flux leakage starter‐generator for helicopters
IET Electric Power ApplicationsA 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 +2 more sources
Miniature mobile sensor platforms for condition monitoring of structures [PDF]
, 2009 In this paper, a wireless, multisensor inspection system for nondestructive evaluation (NDE) of materials is described. The sensor configuration enables two inspection modes-magnetic (flux leakage and eddy current) and noncontact ultrasound.
Chan, C.C. +6 more
core +4 more sources
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2019 A quasi-three-dimensional field mathematical model of the electromagnetic field and heat transfer processes in end zone of a powerful turbogenerator has been developed.
O. H. Kensytskyi +2 more
doaj +1 more source
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2021 This paper addresses the influence of the primary and secondary resistances on the behavior of minor hysteresis loops when the electromagnetic device is fed by three-level PWM (pulse width modulation) voltage. To study the device transferring energy to a
Ricardo de A. Elias +5 more
doaj +1 more source
A Computationally Efficient Hybrid Leakage Model for Modeling Leakage in Positive Displacement Compressors [PDF]
, 2012 An empirical frictional correction factor to the isentropic nozzle model has been developed for application to leakage modeling in scroll, rotary and other similar compressors. This correction factor is derived by calculating the leakage mass flow with a
Groll, Eckhard A. +3 more
core +1 more source
Materiales de Construccion, 2022 Non-destructive measurement techniques are used to identify engineering construction components without causing any negative effects on their use as construction components in the future.
Ö. Bektaş +2 more
doaj +1 more source
Laboratory Investigation of the Leakage Characteristics of Unburied HDPE Pipes [PDF]
, 2015 In this research work, the leakage characteristics of the viscoelastic material HDPE is investigated and compared to other materials like uPVC which is elastic and galvanised steel which is rigid in nature. Under no axial loading, the deformation in HDPE
King, R.T.F. Ah +6 more
core +1 more source
Calculation and simulation research on leakage magnetic field of broken wire damage of wire rope
Gong-kuang zidonghua, 2020 In view of problems that states and characteristics of wire rope defects are random, and it is too difficult to physically calculate the damage of different forms of wire rope, two-dimensional magnetic load model is used to analyze leakage magnetic field
DOU Liancheng, ZHAN Weixia
doaj +1 more source
Machines, 2014 The aim of this paper is to analyze how a permanent magnet linear generator for wave power behaves when the stator slots are closed. The usual design of stator geometry is to use open slots to maintain a low magnetic leakage flux between the stator teeth.
Erik Lejerskog, Mats Leijon
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Frequency Dependent Model of Leakage Inductance for Magnetic Components [PDF]
, 2012 Theoretical methods for the calculation of winding losses with respect to frequency have been well documented, but the variation in leakage inductance of magnetic components due to frequency has been less well addressed. In this paper Dowell’s well-known
Wilcock, Reuben +5 more
core +1 more source