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Description
  • Tento článek je zaměřen na popis jednoho ze způsobů numerického řešení šíření zvuku, které je vyvoláváno vibracemi povrchu strojních celků. Základem pro numerické akustické analýzy je metoda hraničních prvků. Cílem práce je posouzení míry nepřesnosti výsledků získaných užitím postupu, který je založen na jednoduchém typu hraničních prvků. Pro naplnění cíle je provedeno řešení akustické úlohy dvěma způsoby, každým pro jiný typy hraničních elementů. Průměrná relativní chyba v hodnotách hladiny akustického výkonu se pohybuje na 5% hranici, ojedinělá maximální hodnota této chyby činí 16 %. (cs)
  • The presentation deals the numerical method to solution of sound propagation radiated by vibration of surfaces of machine complex. As the base of applied numerical solution is used the boundary elements method. The purpose of the work is to determine the rate of inaccuracy of numerical results obtained using the simple approach of BEM and also the estimation of its usability to finding the acoustical properties of machine parts. To fulfil the purpose the solution of acoustic problem was done using two approach of BEM. The average relative error of acoustic pressure level has value about 5%, unique maximum value is 16 %.
  • The presentation deals the numerical method to solution of sound propagation radiated by vibration of surfaces of machine complex. As the base of applied numerical solution is used the boundary elements method. The purpose of the work is to determine the rate of inaccuracy of numerical results obtained using the simple approach of BEM and also the estimation of its usability to finding the acoustical properties of machine parts. To fulfil the purpose the solution of acoustic problem was done using two approach of BEM. The average relative error of acoustic pressure level has value about 5%, unique maximum value is 16 %. (en)
Title
  • Sound Propagation Problem Solved By Boundary Elements Method
  • Šíření zvuku řešeno metodou hraničních prvků (cs)
  • Sound Propagation Problem Solved By Boundary Elements Method (en)
skos:prefLabel
  • Sound Propagation Problem Solved By Boundary Elements Method
  • Šíření zvuku řešeno metodou hraničních prvků (cs)
  • Sound Propagation Problem Solved By Boundary Elements Method (en)
skos:notation
  • RIV/61989100:27230/07:00014789!RIV09-MSM-27230___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • S, Z(MSM6198910027)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
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  • 451298
http://linked.open...ai/riv/idVysledku
  • RIV/61989100:27230/07:00014789
http://linked.open...riv/jazykVysledku
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  • vibration; FEM; Helmhotz equation; BEM; acoustic analysis (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [172D8CCBF82A]
http://linked.open...v/mistoKonaniAkce
  • Dresden, Germany
http://linked.open...i/riv/mistoVydani
  • Grafing b. Munchen, Germany
http://linked.open...i/riv/nazevZdroje
  • Conference Proceedings of ANSYS Conference & 25. ANSYS CADFEM Users? Meeting
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Szweda, Jan
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
http://purl.org/ne...btex#hasPublisher
  • CADFEN GmbH, ANSYS Germany GmbH
https://schema.org/isbn
  • 3-937523-04-9
http://localhost/t...ganizacniJednotka
  • 27230
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