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2014 | 125 | 4A | A-84-A-87
Article title

Acoustic Field Distortions Caused by Helium-Filled Balloons

Content
Title variants
Languages of publication
EN
Abstracts
EN
In this paper, an automated measurement system was proposed that uses a probe hung below a remotely controlled balloon to measure parameters of the acoustic field in the whole volume of a room. The study was conducted to estimate distortions that such system may cause in the acoustic field at the measurement point. The most significant source of the distortions will be the buoyancy element - one large balloon or a number of smaller ones. This paper considers different spatial configurations of spherical balloons with regards to alterations they cause in the acoustic pressure levels measured below them. Interior of a room without and with a group of spherical balloons was modeled using the boundary element method. Using a larger number of smaller spheres instead of a single large one did not significantly reduce the related distortions. However, using two spheres slightly decreased distortions when the distance between the balloons and the recording point was relatively small.
Keywords
Publisher

Year
Volume
125
Issue
4A
Pages
A-84-A-87
Physical description
Dates
published
2014-04
Contributors
author
  • AGH University of Science and Technology, Department of Mechanics and Vibroacoustics Al. A. Mickiewicza 30, 30-059 Krakow, Poland
author
  • AGH University of Science and Technology, Department of Mechanics and Vibroacoustics Al. A. Mickiewicza 30, 30-059 Krakow, Poland
author
  • AGH University of Science and Technology, Department of Mechanics and Vibroacoustics Al. A. Mickiewicza 30, 30-059 Krakow, Poland
References
  • [1] B. Borkowski, R. Olszewski, M. Pluta, Studia i Materiały Polskiego Stowarzyszenia Zarządzania Wiedzą 45, 33 (2011)
  • [2] B. Borkowski, R. Olszewski, M. Pluta, Logistics 6, 299 (2011)
  • [3] S. Weyna, Archiv. Acoust. 28, 191 (2003)
  • [4] T. Kamisiński, A. Flach, Archiv. Acoust. 31, 235 (2006)
  • [5] T. Kamisiński, K. Kosała, Tech. Trans. Archit. 108, 2-A/1 115 (2011)
  • [6] K. Kosała, Archiv. Acoust. 37, 23 (2012), doi:10.2478/v10168-012-0004-9
  • [7] I. Witew, P. Dietrich, D. de Vries, M. Vorlander, ISRA 2010, Melbourne 2010
  • [8] I. Witew, M. Vorlander, Proc. Inst. Acoust. 33, 23 (2011)
  • [9] R. D. Ciskowski, C. A. Brebbia, Boundary element methods in acoustics, Elsevier, London 1991
  • [10] S. Kirkup, The Boundary Element Method in Acoustics
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv125n4a16kz
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