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Modelling and simul...
Modelling and simulation of electromagnetic audible noise generated by traction motors
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- Botling, Fredrik (author)
- KTH,MWL Marcus Wallenberg Laboratoriet
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- Lopez Arteaga, Ines (thesis advisor)
- KTH,MWL Marcus Wallenberg Laboratoriet
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- Leth, Siv (thesis advisor)
- KTH,MWL Marcus Wallenberg Laboratoriet
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(creator_code:org_t)
- ISBN 9789177292005
- Stockholm : KTH Royal Institute of Technology, 2016
- English 36 s.
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Series: TRITA-AVE, 1651-7660 ; 2016:84
- Related links:
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https://kth.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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Abstract
Subject headings
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- An annoying tonal noise is produced by modern electrical trains duringacceleration and deceleration. This noise is caused by electromagneticforces generating structural vibrations, especially from the traction motors.The electromagnetic noise is dominant at low train speeds and affectsboth the passengers on the train and on platforms, as well as peopleliving near the track. The focus on this issue has increased the last years,both regarding legislation, contractual requirements and also because ofexpectations from citizens and travelers. To be able to design low noiseelectric drive systems, a thorough understanding of the cause and thepossibility to predict the electromagnetic noise is needed. This thesisdescribes the modelling and simulation of an complete multi-physicsreal-time environment for prediction and analysis of the electromagneticnoise. The simulation results are validated against measurements of thestructural vibration and acoustic response of a real traction motor fed bya power converter running in the entire operational range.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
Keyword
- Vibro-acoustics
- Electromagnetic noise
- traction motor
- modal analysis
- multi-physics
- Vehicle and Maritime Engineering
- Farkostteknik
Publication and Content Type
- vet (subject category)
- lic (subject category)
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