Motor core iron loss analysis evaluating shrink fit and stamping effect by finite element method

2005 ◽  
Author(s):  
K. Fujisaki ◽  
R. Hirayama ◽  
T. Kawachi ◽  
S. Satoh ◽  
C. Kaidou ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Iron Loss ◽  
Loss Analysis ◽  
Shrink Fit ◽  
Element Method

Motor Core Iron Loss Analysis Evaluating Shrink Fitting and Stamping by Finite-Element Method

2007 ◽  
Vol 43 (5) ◽  
pp. 1950-1954 ◽  
Author(s):  
Keisuke Fujisaki ◽  
Ryu Hirayama ◽  
Takeshi Kawachi ◽  
Shouji Satou ◽  
Chikara Kaidou ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Iron Loss ◽  
Loss Analysis ◽  
Shrink Fitting ◽  
Element Method

Improved Dynamic E&S Vector Hysteresis Model for Non-Elliptic Magnetic Flux Density Condition and its Implementation to Finite Element Method for Iron Loss Analysis of a Three-Phase Transformer

2012 ◽  
Vol 721 ◽  
pp. 147-152
Author(s):  
Hee Sung Yoon ◽  
Min Ho Song ◽  
Chang Seop Koh
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Iron Loss ◽  
Magnetic Flux Density ◽  
Hysteresis Model ◽  
Loss Analysis ◽  
Proposed Model ◽  
Three Phase ◽  
Element Method

This paper proposes an improved dynamic E&S vector hysteresis model to increase modeling accuracy especially for non-elliptic B-waveforms, and its implementation to finite element method. The major improvements of the suggested model are on the determination of the geometric parameters of a non-elliptic B-waveform, and the calculation of the magnetic reluctivity and hysteresis coefficients. The proposed model is combined with FEM and applied to the iron loss analysis of a three-phase transformer.

Finite element analysis of a cylindrical approach for shrink-fit precision gear forging dies

2003 ◽  
Vol 217 (6) ◽  
pp. 677-685 ◽  
Author(s):  
M A Kutuk ◽  
O Eyercioglu ◽  
N Yildirim ◽  
A Akpolat
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Analytical Approach ◽  
Thick Wall ◽  
The Finite Element Method ◽  
Element Analysis ◽  
Gear Teeth ◽  
Methods Analytical ◽  
Shrink Fit ◽  
Element Method

The design of shrink-fit precision gear forging dies based on strength considerations using an analytical (thick-wall cylinders) approach and the finite element method are compared. While the two methods, analytical and finite element, agree well for the dies with no irregularities (gear teeth), the finite element method predicts much higher stress values than those of the analytical approach for the dies with gear teeth. These high stresses are considerably reduced by reoptimizing the geometric parameters, such as the interference between the die and the ring.

scholarly journals Analysis and identification of influential phenomena on iron losses in embedded permanent magnet synchronous machine

2017 ◽  
Vol 68 (1) ◽  
Author(s):  
Mitja Breznik ◽  
Viktor Goričan ◽  
Anton Hamler ◽  
Selma Čorović ◽  
Damijan Miljavec
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Magnetic Flux ◽  
Permanent Magnet ◽  
Flux Density ◽  
Iron Loss ◽  
Magnetic Flux Density ◽  
Iron Losses ◽  
Ipm Machine ◽  
Element Method

AbstractThis paper presents magnetic flux density behaviour in laminated electrical sheets which affects the results and precision of iron losses calculation in imbedded permanent magnet (IPM) machine. Objective of the research was to analyse all the influential phenomena that were identified through iron loss models analysis, finite element method simulations and iron loss measurements. The presence of phenomena such as harmonic content and rotational magnetic fields are confirmed with finite element method analysis of concentrated and distributed winding IPM machine. A significant magnetic flux density ripple in the rotor of concentrated winding IPM machine in comparison to distributed winding IPM machine is revealed and analysed. Behaviour that affects iron loss in the rotor of synchronous machines in the absence of first order harmonic is analysed. The DC level added to alternating magnetic flux density was used in experiment to mimic magnetic behaviour on the rotor of IPM machine and further to calculate iron losses.

Calculation of Iron Loss in Large Hydro-Generator under Non-Load

2012 ◽  
Vol 433-440 ◽  
pp. 6096-6102
Author(s):  
Wei Li Li ◽  
Da Wei Liang ◽  
Yu Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Electromagnetic Field ◽  
Structural Characteristics ◽  
Iron Loss ◽  
The Finite Element Method ◽  
Physical Fields ◽  
New Generation ◽  
Generator Stator ◽  
Element Method

Taking 1000MW air-cooled hydro-generator as an example, the solving region and mathematical model are given. Based on the theories of electromagnetic field, the stator iron loss of large generator under non-load is studied. Considering the structural characteristics of generator, the iron loss was calculated by using magnetic circuit method and the finite element method, respectively. First, the iron loss in generator stator is calculated basing on the theory of electromagnetic field. Then the steady state and transient fields were used to calculate and analyze the 2D electromagnetic field by finite element method. And the exact value and distribution of iron loss are obtained. Last, we obtain some useful conclusions through comparing the iron loss calculated by the two methods above. That will provide a theoretical basis for further study of the physical fields of new generation giant hydro-generators.

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