Sound power radiated from an inverter driven induction motor II: numerical analysis
Sound power radiated from an inverter driven induction motor II: numerical analysis
- Author(s): C. Wang ; J.C.S. Lai ; A. Astfalck
- DOI: 10.1049/ip-epa:20040120
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- Author(s): C. Wang 1 ; J.C.S. Lai 1 ; A. Astfalck 1
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View affiliations
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Affiliations:
1: Acoustics and Vibration Unit, University College, The University of New South Wales, Canberra, Australia
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Affiliations:
1: Acoustics and Vibration Unit, University College, The University of New South Wales, Canberra, Australia
- Source:
Volume 151, Issue 3,
May 2004,
p.
341 – 348
DOI: 10.1049/ip-epa:20040120 , Print ISSN 1350-2352, Online ISSN 1359-7043
The numerical simulations for predicting the sound power of electromagnetic origin from an inverter driven induction motor are described. Three numerical models are developed: a 2D electromagnetic force model using the finite-element method (FEM), a 3D FEM structural model, and a 3D acoustic model based on the boundary-element method (BEM). The validation of the FEM structural model and the BEM acoustic model is discussed. The sound power as well as the sound pressure field produced by the motor driven under various conditions is analysed. Results show that FEM and BEM can be effectively employed to analyse the vibro-acoustic behaviour of an inverter-driven induction motor.
Inspec keywords: induction motors; boundary-elements methods; electromagnetic forces; finite element analysis; acoustic intensity measurement; PWM invertors; acoustic noise
Other keywords:
Subjects: Power convertors and power supplies to apparatus; Asynchronous machines; Finite element analysis
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