On solid noise solutions in waveguides

Antti Hynninen, Jukka Tanttari, Seppo Uosukainen

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

Abstract

Restrictions on unwanted sound, noise are more and more stringent. In many applications, airborne noise travels from the source to the receiver via transmission path consisting of waveguides. Typical applications include ventilation ducts and internal combustion engine intake and exhaust systems, for example. Usually in these applications, resistive silencers are designed for noise attenuation in selected frequency range. Wool and fiber based resistive materials cause back-pressure and have limited lifetime. Major problem with these materials is development of brittleness which leads to decrease in attenuation performance and when broke down in pieces, might cause major failures in connected devices. In addition, microfibers contaminate air. In this paper, wool and fiber less noise control techniques are discussed. In addition, acoustic properties of panel resonators and micro perforated panel silencers are simulated with different geometries.
Original languageEnglish
Title of host publicationProceedings of the 25th International Congress on Sound and Vibration
PublisherInternational Institute of Acoustics and Vibration IIAV
Pages3148-3155
Number of pages8
Volume5
ISBN (Electronic)978-83-7880-552-6
Publication statusPublished - 2018
MoE publication typeA4 Article in a conference publication
Event25th International Congress on Sound and Vibration, ICSV25 - Hiroshima, Japan
Duration: 8 Jul 201812 Jul 2018

Conference

Conference25th International Congress on Sound and Vibration, ICSV25
Abbreviated titleICSV25
CountryJapan
CityHiroshima
Period8/07/1812/07/18

Fingerprint

silencers
wool
waveguides
noise (sound)
intake systems
exhaust systems
microfibers
internal combustion engines
brittleness
fibers
acoustic properties
causes
ventilation
noise reduction
ducts
travel
constrictions
receivers
breakdown
frequency ranges

Keywords

  • waveguide
  • silencer
  • absorber
  • simulations

Cite this

Hynninen, A., Tanttari, J., & Uosukainen, S. (2018). On solid noise solutions in waveguides. In Proceedings of the 25th International Congress on Sound and Vibration (Vol. 5, pp. 3148-3155). [944] International Institute of Acoustics and Vibration IIAV.
Hynninen, Antti ; Tanttari, Jukka ; Uosukainen, Seppo. / On solid noise solutions in waveguides. Proceedings of the 25th International Congress on Sound and Vibration. Vol. 5 International Institute of Acoustics and Vibration IIAV, 2018. pp. 3148-3155
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Hynninen, A, Tanttari, J & Uosukainen, S 2018, On solid noise solutions in waveguides. in Proceedings of the 25th International Congress on Sound and Vibration. vol. 5, 944, International Institute of Acoustics and Vibration IIAV, pp. 3148-3155, 25th International Congress on Sound and Vibration, ICSV25, Hiroshima, Japan, 8/07/18.

On solid noise solutions in waveguides. / Hynninen, Antti; Tanttari, Jukka; Uosukainen, Seppo.

Proceedings of the 25th International Congress on Sound and Vibration. Vol. 5 International Institute of Acoustics and Vibration IIAV, 2018. p. 3148-3155 944.

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

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Hynninen A, Tanttari J, Uosukainen S. On solid noise solutions in waveguides. In Proceedings of the 25th International Congress on Sound and Vibration. Vol. 5. International Institute of Acoustics and Vibration IIAV. 2018. p. 3148-3155. 944