About: Application of Polyurethane Foam as Acoustic Insulation in One-Propeller Aircraft     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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Description
  • Článek se zaměřuje na problematiku hlukové redukce v kabině jedno-vrtulového letadla typu ultra-light. Cílem byla analýza hlukové epozice motoru a vrtule umístěné před kabinou pro dvoučlenou posádku. Typ použitého letadla byl SportStar z firmy Evektor Aerotechnik Kunovice. Bylo sledováno snížení hladiny akustického tlaku uvnitř letadla na základě aplikace polyuretanové pěny. Byl měřen koeficient zvukové pohltivost, koeficient zvukové odrazivosti a hladina akustického tlaku. Pro správnost měření se postupovalo podle normy ČSN 310306. Měření bylo rozděleno do dvou částí. První část se měřila v laboratoři a praktická část v letadle. (cs)
  • The paper is focused on the problematic of noise reduction a fuselage of one propeller ultra-light aeroplane. The aim of this paper was to analyse the noise produced by engine located in front of two-seat aircraft (SportStar, Evektor Aerotechnik) cabin and to develop an effective sound damping and sound insulation layers based on specific polyurethane matrix. There were determined basic acoustic parameters characterizing distribution of the noise levels inside the fuselage such as sound absorption coefficient, sound reflection coefficient and sound pressure level distribution according to the ČSN 31 0306 norm. Measurements were performed both in the laboratory and in the aircraft. Interpretations of our measurements are discussed in the conclusion.
  • The paper is focused on the problematic of noise reduction a fuselage of one propeller ultra-light aeroplane. The aim of this paper was to analyse the noise produced by engine located in front of two-seat aircraft (SportStar, Evektor Aerotechnik) cabin and to develop an effective sound damping and sound insulation layers based on specific polyurethane matrix. There were determined basic acoustic parameters characterizing distribution of the noise levels inside the fuselage such as sound absorption coefficient, sound reflection coefficient and sound pressure level distribution according to the ČSN 31 0306 norm. Measurements were performed both in the laboratory and in the aircraft. Interpretations of our measurements are discussed in the conclusion. (en)
Title
  • Application of Polyurethane Foam as Acoustic Insulation in One-Propeller Aircraft
  • Application of Polyurethane Foam as Acoustic Insulation in One-Propeller Aircraft (en)
  • Aplikace polyuretanové pěny jako akustické izolace jedno-vrtulového letounou. (cs)
skos:prefLabel
  • Application of Polyurethane Foam as Acoustic Insulation in One-Propeller Aircraft
  • Application of Polyurethane Foam as Acoustic Insulation in One-Propeller Aircraft (en)
  • Aplikace polyuretanové pěny jako akustické izolace jedno-vrtulového letounou. (cs)
skos:notation
  • RIV/70883521:28110/07:63505300!RIV08-MSM-28110___
http://linked.open.../vavai/riv/strany
  • 57-61
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM7088352102)
http://linked.open...iv/cisloPeriodika
  • 14
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 410504
http://linked.open...ai/riv/idVysledku
  • RIV/70883521:28110/07:63505300
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Noise; frequency dependence; sound absorption coefficient; sound reflection coefficient; sound pressure level (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • SK - Slovenská republika
http://linked.open...ontrolniKodProRIV
  • [A896037DE8D6]
http://linked.open...i/riv/nazevZdroje
  • Acta Avionica
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 9
http://linked.open...iv/tvurceVysledku
  • Lapčík, Lubomír
  • Juřička, Martin
http://linked.open...n/vavai/riv/zamer
issn
  • 1335-9479
number of pages
http://localhost/t...ganizacniJednotka
  • 28110
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