scholarly journals Finite Element Simulation for Remote Field Eddy Current and Detection Sensitivity Analysis for Inner and Outer Defect

2014 ◽  
Vol 04 (06) ◽  
pp. 253-259
Author(s):  
小杰 徐
Keyword(s):  
Sensitivity Analysis ◽  
Finite Element ◽  
Finite Element Simulation ◽  
Eddy Current ◽  
Detection Sensitivity ◽  
Element Simulation

Eddy Current Testing Probe to Improve the Defect Detection Sensitivity of Metal Tube

2014 ◽  
Vol 945-949 ◽  
pp. 1987-1990
Author(s):  
Si Quan Zhang ◽  
Yu Liu ◽  
Hao Jun Xu ◽  
Chang Yin
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Defect Detection ◽  
Eddy Current ◽  
Experimental Results ◽  
Detection Sensitivity ◽  
Metal Tube ◽  
Current Testing ◽  
Element Simulation ◽  
Axial Defects

The structure of conventional bobbin probe was modified to improve the detection sensitivity of defects in metal tube. Based on the results of finite element simulation, several types of modified probes are fabricated and used to detect artificial defects in tube and the defect signals are acquired and analyzed. The simulation and experimental results verified that the modified eddy current probes are more sensitive to non-axial defects than conventional bobbin probe and can improve the reliability of tube inspection.

scholarly journals Magnetic transmission gear finite element simulation with iron pole hysteresis

Open Physics ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 105-110 ◽  
Author(s):  
Mattia Filippini ◽  
Piergiorgio Alotto ◽  
Gregor Glehn ◽  
Kay Hameyer
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Finite Element Simulation ◽  
Design Process ◽  
Eddy Current ◽  
Hysteretic Model ◽  
Post Processing ◽  
Element Simulation ◽  
Laminated Materials ◽  
Transmission Gear

Abstract Ferromagnetic poles in a magnetic transmission gear require particular attention during their design process. Usually, during the numerical simulation of these devices the effects of hysteresis for loss estimation are neglected and considered only during post-processing calculations. Since the literature lacks hysteresis models, this paper adopts a homogenized hysteretic model able to include eddy current and hysteresis losses in 2D laminated materials for iron poles. In this article the results related to the hysteresis in a magnetic gear are presented and compared to the non-hysteretic approach.

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