An investigation of induction motor zeroth-order magnetic stresses, vibration, and sound radiation

Timothy E. McDevitt; Robert L. Campbell; David M. Jenkins

doi:10.1109/TMAG.2004.824772

An investigation of induction motor zeroth-order magnetic stresses, vibration, and sound radiation

Timothy E. McDevitt, Robert L. Campbell, David M. Jenkins

Applied Research Laboratory (ARL)

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

A computational approach is undertaken to better understand what can be one of the primary contributors to sound radiation from induction motors - the n = 0 magnetic stresses. An electromagnetic finite-element model, a structural dynamic finite-element model, and an acoustic boundary-element model of an induction motor are used to illustrate some sources of n = 0 electromagnetic stresses, and how their resultant vibration field on the stator can be enhanced by boundary conditions, such as stator supports, to result in peaks in the radiated noise spectrum.

Original language	English (US)
Pages (from-to)	774-777
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	40
Issue number	2 II
DOIs	https://doi.org/10.1109/TMAG.2004.824772
State	Published - Mar 2004

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2004.824772

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abstract = "A computational approach is undertaken to better understand what can be one of the primary contributors to sound radiation from induction motors - the n = 0 magnetic stresses. An electromagnetic finite-element model, a structural dynamic finite-element model, and an acoustic boundary-element model of an induction motor are used to illustrate some sources of n = 0 electromagnetic stresses, and how their resultant vibration field on the stator can be enhanced by boundary conditions, such as stator supports, to result in peaks in the radiated noise spectrum.",

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AB - A computational approach is undertaken to better understand what can be one of the primary contributors to sound radiation from induction motors - the n = 0 magnetic stresses. An electromagnetic finite-element model, a structural dynamic finite-element model, and an acoustic boundary-element model of an induction motor are used to illustrate some sources of n = 0 electromagnetic stresses, and how their resultant vibration field on the stator can be enhanced by boundary conditions, such as stator supports, to result in peaks in the radiated noise spectrum.

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An investigation of induction motor zeroth-order magnetic stresses, vibration, and sound radiation

Abstract

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