scholarly journals New elements within finite element modeling of magnetostriction phenomenon in BLDC motor

Open Physics ◽  
2020 ◽  
Vol 18 (1) ◽  
pp. 459-466
Author(s):  
Podhajecki Jerzy ◽  
Rawicki Stanislaw
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Model ◽  
Finite Element Modeling ◽  
Mechanical Model ◽  
Electrical Machines ◽  
Bldc Motor ◽  
Factors Affecting ◽  
Element Modeling ◽  
Magnetic Forces

AbstractReluctance forces are the main cause of vibration in electrical machines. The influence of magnetostriction is still the matter of controversy. In the article, program Ansys (typical for finite element method) was used to analyze stator deformation due to magnetic forces (Maxwell and magnetostriction) for the different boundaries and different methods by taking into account the windings in the mechanical model. Different parameters of numerical model are important factors affecting the level of magnetostriction deformation.

Finite Element Modeling for Optimizing Hermetic Package Reliability

1989 ◽  
Vol 111 (4) ◽  
pp. 255-260 ◽  
Author(s):  
J. H. Lau ◽  
L. B. Lian-Mueller
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Optimal Design ◽  
Thermal Behavior ◽  
Finite Element Modeling ◽  
Thermal Stresses ◽  
Finite Element Models ◽  
The Finite Element Method ◽  
Element Modeling ◽  
Package Reliability

The thermal stresses in microwave packages are studied by the finite element method. Emphasis is placed on the effects of material construction and design on the reliability of very small hermetic packages. Three different microwave packages have been designed and six finite element models (two for each design) have been analyzed. To verify the validity of the finite element results, some leak tests have been performed and the results agree with the analytical conclusions. The results presented herein should provide a better understanding of the thermal behavior of hermetic packages and should be useful for their optimal design.

scholarly journals Reduced Basis Finite Element Modeling of Electrical Machines with Multiconductor Windings

2017 ◽  
Vol 53 (5) ◽  
pp. 4252-4259 ◽  
Author(s):  
Antti Lehikoinen ◽  
Antero Arkkio ◽  
Anouar Belahcen
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Electrical Machines ◽  
Reduced Basis ◽  
Element Modeling

Two-dimensional Cartesian air-gap element (CAGE) for dynamic finite-element modeling of electrical machines with a flat air gap

2002 ◽  
Vol 38 (2) ◽  
pp. 1357-1360 ◽  
Author(s):  
R. Wang ◽  
H. Mohellebi ◽  
T.J. Flack ◽  
M.J. Kamper ◽  
J.D. Buys ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Air Gap ◽  
Electrical Machines ◽  
Two Dimensional ◽  
Element Modeling ◽  
Dynamic Finite Element ◽  
Gap Element

scholarly journals Homogenization of Form-Wound Windings in Frequency and Time Domain Finite-Element Modeling of Electrical Machines

2010 ◽  
Vol 46 (8) ◽  
pp. 2852-2855 ◽  
Author(s):  
Johan Gyselinck ◽  
Patrick Dular ◽  
Nelson Sadowski ◽  
Patrick Kuo-Peng ◽  
Ruth V. Sabariego
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Time Domain ◽  
Electrical Machines ◽  
Element Modeling

Finite Element Modeling of Eigenvibrations of a Loaded Bar

2018 ◽  
Vol 931 ◽  
pp. 148-151
Author(s):  
Anton A. Samsonov ◽  
Sergey I. Solov'ev
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Eigenvalue Problem ◽  
Finite Element Modeling ◽  
Limit Point ◽  
Nonlinear Eigenvalue Problem ◽  
Approximate Solutions ◽  
Uniform Grid ◽  
Element Modeling ◽  
Plates And Shells

The nonlinear second-order differential eigenvalue problem describing eigenvibrations of a bar with elastically attached load is investigated. This problem has an increasing sequence of positive simple eigenvalues with limit point at infinity. The sequence of eigenvalues corresponds to a system of normalized eigenfunctions. The initial nonlinear eigenvalue problem is approximated by the quadrature finite element method on a uniform grid. The existence and accuracy of approximate solutions are studied. Investigations of the present paper can be generalized for the cases of more complicated and important problems on eigenvibrations of beams, plates and shells with elastically attached loads.

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