Acoustic analysis of an induction motor with viscoelastic bearing supports

H.G. Tillema, J.A. Wensing

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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Abstract

The demand for silent bearing applications has resulted in the development of an effective damping layer between the outer ring of a rolling bearing and the surrounding structure. By means of numerical modeling using both FEM and BEM techniques an induction motor for household appliances is analyzed. A hybrid modeling approach combining measured structural velocities with a BEM formulation is used to validate the acoustic model. The numerical results are compared with results obtained from sound intensity measurements estimating the radiated sound power level for a running electric mo tor. It is found that a relatively simple boundary element model is capable of predicting the radiated sound power in a wide frequency range. By using BEM in combination with the radiation modes formulation it is found that a properly designed viscoelastic layer in the vicinity of the bearing is theoretically capable of reducing a fair amount of sound emitted by the motor.
Original languageUndefined
Title of host publicationproceedings of Inter-Noise Conference 2002, 19-21 August 2002, Detroit, Michigan, USA
EditorsAhmet Selamet
Place of PublicationDetroit MI, USA
PublisherINCE USA
Pages1-6
Number of pages6
ISBN (Print)CD-rom
Publication statusPublished - 19 Aug 2002

Keywords

  • IR-58831
  • METIS-210721

Cite this

Tillema, H. G., & Wensing, J. A. (2002). Acoustic analysis of an induction motor with viscoelastic bearing supports. In A. Selamet (Ed.), proceedings of Inter-Noise Conference 2002, 19-21 August 2002, Detroit, Michigan, USA (pp. 1-6). Detroit MI, USA: INCE USA.
Tillema, H.G. ; Wensing, J.A. / Acoustic analysis of an induction motor with viscoelastic bearing supports. proceedings of Inter-Noise Conference 2002, 19-21 August 2002, Detroit, Michigan, USA. editor / Ahmet Selamet. Detroit MI, USA : INCE USA, 2002. pp. 1-6
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title = "Acoustic analysis of an induction motor with viscoelastic bearing supports",
abstract = "The demand for silent bearing applications has resulted in the development of an effective damping layer between the outer ring of a rolling bearing and the surrounding structure. By means of numerical modeling using both FEM and BEM techniques an induction motor for household appliances is analyzed. A hybrid modeling approach combining measured structural velocities with a BEM formulation is used to validate the acoustic model. The numerical results are compared with results obtained from sound intensity measurements estimating the radiated sound power level for a running electric mo tor. It is found that a relatively simple boundary element model is capable of predicting the radiated sound power in a wide frequency range. By using BEM in combination with the radiation modes formulation it is found that a properly designed viscoelastic layer in the vicinity of the bearing is theoretically capable of reducing a fair amount of sound emitted by the motor.",
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Tillema, HG & Wensing, JA 2002, Acoustic analysis of an induction motor with viscoelastic bearing supports. in A Selamet (ed.), proceedings of Inter-Noise Conference 2002, 19-21 August 2002, Detroit, Michigan, USA. INCE USA, Detroit MI, USA, pp. 1-6.

Acoustic analysis of an induction motor with viscoelastic bearing supports. / Tillema, H.G.; Wensing, J.A.

proceedings of Inter-Noise Conference 2002, 19-21 August 2002, Detroit, Michigan, USA. ed. / Ahmet Selamet. Detroit MI, USA : INCE USA, 2002. p. 1-6.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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T1 - Acoustic analysis of an induction motor with viscoelastic bearing supports

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AU - Wensing, J.A.

PY - 2002/8/19

Y1 - 2002/8/19

N2 - The demand for silent bearing applications has resulted in the development of an effective damping layer between the outer ring of a rolling bearing and the surrounding structure. By means of numerical modeling using both FEM and BEM techniques an induction motor for household appliances is analyzed. A hybrid modeling approach combining measured structural velocities with a BEM formulation is used to validate the acoustic model. The numerical results are compared with results obtained from sound intensity measurements estimating the radiated sound power level for a running electric mo tor. It is found that a relatively simple boundary element model is capable of predicting the radiated sound power in a wide frequency range. By using BEM in combination with the radiation modes formulation it is found that a properly designed viscoelastic layer in the vicinity of the bearing is theoretically capable of reducing a fair amount of sound emitted by the motor.

AB - The demand for silent bearing applications has resulted in the development of an effective damping layer between the outer ring of a rolling bearing and the surrounding structure. By means of numerical modeling using both FEM and BEM techniques an induction motor for household appliances is analyzed. A hybrid modeling approach combining measured structural velocities with a BEM formulation is used to validate the acoustic model. The numerical results are compared with results obtained from sound intensity measurements estimating the radiated sound power level for a running electric mo tor. It is found that a relatively simple boundary element model is capable of predicting the radiated sound power in a wide frequency range. By using BEM in combination with the radiation modes formulation it is found that a properly designed viscoelastic layer in the vicinity of the bearing is theoretically capable of reducing a fair amount of sound emitted by the motor.

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KW - METIS-210721

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Tillema HG, Wensing JA. Acoustic analysis of an induction motor with viscoelastic bearing supports. In Selamet A, editor, proceedings of Inter-Noise Conference 2002, 19-21 August 2002, Detroit, Michigan, USA. Detroit MI, USA: INCE USA. 2002. p. 1-6