Acoustic noise computation of electrical motors using the boundary element method

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Acoustic noise computation of electrical motors using the boundary element method. / Sathyan, Sabin; Aydin, Ugur; Belahcen, Anouar.

julkaisussa: Energies, Vuosikerta 13, Nro 1, 0245, 03.01.2020.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Sathyan, Sabin ; Aydin, Ugur ; Belahcen, Anouar. / Acoustic noise computation of electrical motors using the boundary element method. Julkaisussa: Energies. 2020 ; Vuosikerta 13, Nro 1.

Bibtex - Lataa

@article{4871e2f98da54043b3f7ada3eb755cd0,
title = "Acoustic noise computation of electrical motors using the boundary element method",
abstract = "This paper presents a numerical method and computational results for acoustic noise of electromagnetic origin generated by an induction motor. The computation of noise incorporates three levels of numerical calculation steps, combining both the finite element method and boundary element method. The role of magnetic forces in the production of acoustic noise is established in the paper by showing the magneto-mechanical and vibro-acoustic pathway of energy. The conversion of electrical energy into acoustic energy in an electrical motor through electromagnetic, mechanical, or acoustic platforms is illustrated through numerical computations of magnetic forces, mechanical deformation, and acoustic noise. The magnetic forces were computed through 2D electromagnetic finite element simulation, and the deformation of the stator due to these forces was calculated using 3D structural finite element simulation. Finally, boundary element-based computation was employed to calculate the sound pressure and sound power level in decibels. The use of the boundary element method instead of the finite element method in acoustic computation reduces the computational cost because, unlike finite element analysis, the boundary element approach does not require heavy meshing to model the air surrounding the motor.",
keywords = "Acoustics, Boundary element method, Electric machines, Finite element method, Induction motors, Magneto-mechanics, Modeling, Noise, Vibro-acoustics",
author = "Sabin Sathyan and Ugur Aydin and Anouar Belahcen",
year = "2020",
month = "1",
day = "3",
doi = "10.3390/en13010245",
language = "English",
volume = "13",
journal = "Energies",
issn = "1996-1073",
publisher = "MDPI AG",
number = "1",

}

RIS - Lataa

TY - JOUR

T1 - Acoustic noise computation of electrical motors using the boundary element method

AU - Sathyan, Sabin

AU - Aydin, Ugur

AU - Belahcen, Anouar

PY - 2020/1/3

Y1 - 2020/1/3

N2 - This paper presents a numerical method and computational results for acoustic noise of electromagnetic origin generated by an induction motor. The computation of noise incorporates three levels of numerical calculation steps, combining both the finite element method and boundary element method. The role of magnetic forces in the production of acoustic noise is established in the paper by showing the magneto-mechanical and vibro-acoustic pathway of energy. The conversion of electrical energy into acoustic energy in an electrical motor through electromagnetic, mechanical, or acoustic platforms is illustrated through numerical computations of magnetic forces, mechanical deformation, and acoustic noise. The magnetic forces were computed through 2D electromagnetic finite element simulation, and the deformation of the stator due to these forces was calculated using 3D structural finite element simulation. Finally, boundary element-based computation was employed to calculate the sound pressure and sound power level in decibels. The use of the boundary element method instead of the finite element method in acoustic computation reduces the computational cost because, unlike finite element analysis, the boundary element approach does not require heavy meshing to model the air surrounding the motor.

AB - This paper presents a numerical method and computational results for acoustic noise of electromagnetic origin generated by an induction motor. The computation of noise incorporates three levels of numerical calculation steps, combining both the finite element method and boundary element method. The role of magnetic forces in the production of acoustic noise is established in the paper by showing the magneto-mechanical and vibro-acoustic pathway of energy. The conversion of electrical energy into acoustic energy in an electrical motor through electromagnetic, mechanical, or acoustic platforms is illustrated through numerical computations of magnetic forces, mechanical deformation, and acoustic noise. The magnetic forces were computed through 2D electromagnetic finite element simulation, and the deformation of the stator due to these forces was calculated using 3D structural finite element simulation. Finally, boundary element-based computation was employed to calculate the sound pressure and sound power level in decibels. The use of the boundary element method instead of the finite element method in acoustic computation reduces the computational cost because, unlike finite element analysis, the boundary element approach does not require heavy meshing to model the air surrounding the motor.

KW - Acoustics

KW - Boundary element method

KW - Electric machines

KW - Finite element method

KW - Induction motors

KW - Magneto-mechanics

KW - Modeling

KW - Noise

KW - Vibro-acoustics

UR - http://www.scopus.com/inward/record.url?scp=85077500253&partnerID=8YFLogxK

U2 - 10.3390/en13010245

DO - 10.3390/en13010245

M3 - Article

AN - SCOPUS:85077500253

VL - 13

JO - Energies

JF - Energies

SN - 1996-1073

IS - 1

M1 - 0245

ER -

ID: 40548378