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Detail publikace
LIU, D. HAVRÁNEK, Z. MARBURG, S. PETERS, H. KESSISSOGLOU, N.
Originální název
Non-negative intensity and back-calculated non-negative intensity for analysis of directional structure-borne sound
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Non-negative intensity (NNI) is an approach to identify the surface areas of a structure that contribute to sound power. NNI is evaluated in terms of the acoustic impedance matrix obtained directly at the structural surface and as such can only identify surface contributions to sound power at a far-field receiver surface that fully circumscribes the structure. In contrast, back-calculated NNI is evaluated in terms of the acoustic impedance matrix obtained at a far-field receiver surface, and hence can identify surface contributions to sound power at a far-field receiver surface that does not fully circumscribe the structure. In this work, NNI and acoustic intensity obtained numerically using the boundary element method and experimentally from near-field acoustic holography measurements are compared for different modes. Back-calculated NNI evaluated for full and partial receiver surfaces is also compared with acoustic intensity for the different modes. Results for back-calculated NNI show that different regions on the plate surface contribute sound to different receiver locations.
Klíčová slova
non-negative intensity, near-field acoustic holography, boundary element method
Autoři
LIU, D.; HAVRÁNEK, Z.; MARBURG, S.; PETERS, H.; KESSISSOGLOU, N.
Vydáno
11. 7. 2017
Nakladatel
AIP Publishing
Místo
1305 Walt Whitman Road, Melville, NY 11747-4300, USA
ISSN
0001-4966
Periodikum
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Ročník
142
Číslo
1
Stát
Spojené státy americké
Strany od
117
Strany do
123
Strany počet
7
URL
http://asa.scitation.org/doi/full/10.1121/1.4990374
BibTex
@article{BUT137773, author="Daipei {Liu} and Zdeněk {Havránek} and Steffen {Marburg} and Herwig {Peters} and Nicole {Kessissoglou}", title="Non-negative intensity and back-calculated non-negative intensity for analysis of directional structure-borne sound", journal="JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA", year="2017", volume="142", number="1", pages="117--123", doi="10.1121/1.4990374", issn="0001-4966", url="http://asa.scitation.org/doi/full/10.1121/1.4990374" }