Results 21 to 30 of about 37,143 (302)

Influence of Various Magnetic Pole on Electromagnetic Performance of Consequent-Pole Permanent Magnet Machine

open access: yesIEEE Access, 2019
Permanent magnet (PM) machine with consequent pole (CP) rotor can improve the PM utilization ratio. However, one group PMs with the same polarity is replaced by iron core which deteriorating the electromagnetic performance of the machine, including even ...
Feng Li   +3 more
doaj   +1 more source

Calculation and simulation research on leakage magnetic field of broken wire damage of wire rope

open access: yesGong-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

Analysis of Leakage in a Sustainable Water Pipeline Based on a Magnetic Flux Leakage Technique

open access: yes, 2022
Pipelines are typically used to transport oil, natural gas, water, etc. It is one of the most effective methods for transferring fluids over long distances. However, long-term usage of these pipes without maintenance results in the formation of residues,
Peng Chi-Chuan   +3 more
core   +1 more source

Development of magnetic flux leakage device as a non-destructive method for structural reinforcement detection

open access: yesMateriales 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

Influence of Specimen Velocity on the Leakage Signal in Magnetic Flux Leakage Type Nondestructive Testing [PDF]

open access: yesJournal of Nondestructive Evaluation, 2015
We investigate the influence of the specimen velocity on the magnetic flux leakage with the aim of selecting the optimum sensor locations. Parametric numerical simulations where the specimen velocity was in the range [0.1-20] m$\cdot$s$^{-1}$ were carried out.
Zhang, Lintao   +5 more
openaire   +4 more sources

Miniature mobile sensor platforms for condition monitoring of structures

open access: yes, 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   +1 more source

Flux Leakage Analytical Calculation in the E-Shape Stator of Linear Rotary Motor With Interlaced Permanent Magnet Poles [PDF]

open access: yes, 2023
The circumferential and axial widths of permanent magnet (PM) pole and E-shape stator pole of linear rotary motor with interlaced PM poles are very influential to the back electromotive force (EMF) and the flux leakage analysis is complex, which causes ...
Fang, S, Guo, K, Guo, Y
core   +1 more source

The Mathematical Model of Coupling Calculation the Electromagnetic Field and Heats of End Zone Powerful Turbogenerator

open access: yesИзвестия 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

Torque Improvement and Magnetic Flux Leakage Reduction in Interior Permanent Magnet Axial Flux Motors With Flux Barrier Structure

open access: yesIEEE Access
Magnetic flux leakage, a significant issue in motors that hinders performance and torque production, was investigated in this study. This study focused on analyzing the impact of varying the thickness of a flux barrier embedded within the rotor of ...
Kyoungmin Kim   +3 more
doaj   +1 more source

Unsaturated Magnetic Flux Leakage Detection and Identification of Scratches in Oil and Gas Pipelines

open access: yesShiyou jixie, 2022
The online detection technology for oil and gas pipelines can effectively detect metal loss defects, but it has limited ability to distinguish corrosion and mechanical damage scratches.
Zhang Xuewei   +3 more
doaj  

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