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Compact, tuned silencer for vacuum cleaners
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
2013 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Vacuum cleaner motors work at a relatively high rpm, which produces blade passing tones at high frequencies. In this report a honeycomb-liner type silencer for vacuum cleaners has been investigated. The main purpose of the silencer is to attenuate the first order blade passing tone, at approximately 7066 Hz. No modifications have been done to the motor. With insertion loss (IL) an average attenuation of between 3-8 dB was achieved. To confirm the results sound power measurements were done, but the IL-measurement results could not be verified by them. The report includes an analytical (COMSOL Multiphysics) as well as an experimental investigation. This thesis has been done in cooperation with KTH (Marcus Wallenberg laboratory for sound and vibration research), Müller-BBM Scandinavia and Electrolux Small Appliances.

Place, publisher, year, edition, pages
2013. , 78 p.
Series
TRITA-AVE, ISSN 1651-7660 ; 2013:14
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-177301OAI: oai:DiVA.org:kth-177301DiVA: diva2:872164
Supervisors
Examiners
Available from: 2015-11-18 Created: 2015-11-18 Last updated: 2015-11-18Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
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  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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