The sound field of an arbitrarily oriented quadrupole near ground surfaces

Journal of the Acoustical Society of America

Volumn 102, Issue 4, 1997, Pages 2050-2057

  Li, Kai Ming ^a   Taherzadeh, Shahram ^a  

^a OPEN UNIVERSITY   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC IMPEDANCE; ARTICLE; NOISE; PRIORITY JOURNAL; SOUND PRESSURE; SOUND TRANSMISSION;

EID: 0011904683     PISSN: 00014966     EISSN: None     Source Type: Journal    
DOI: 10.1121/1.419654     Document Type: Article

References (14)

1. K. Attenborough, "Review of ground effects on outdoor sound propagation from continuous broadband sources," Appl. Acoust. 24, 289-319 (1988).
2. 2].
3. J. S. Bolton, B. K. Gardner, and T. A. Beauvilain, "Sound cancellation by the use of secondary multipoles," J. Acoust. Soc. Am. 98, 2343-2362 (1995).
4. S. Taherzadeh, "Sound propagation in inhomogeneous media," PhD. Thesis, Faculty of Technology, The Open University, 1996.
5. A. V. Generalov, "Sound field of a multipole source of order N near a locally reacting surface," Sov. Phys. Acoust. 33, 492-496 (1987).
6. A. D. Pierce, Acoustics: An Introduction to Its Physical Principles and Applications (Acoustical Society of America, New York, 1989), pp. 165-171.
7. M. Abramowitz and I. A. Stegun, Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables (Dover, New York, 1972).
8. Z. Hu and J. S. Bolton, "Sound propagation from an arbitrarily oriented multi-pole placed near a plane, finite impedance surface," J. Sound Vib. 170, 637-666 (1994).
9. C. F. Chien and W. W. Soroka, "Sound propagation along an impedance plane," J. Sound Vib. 81, 413-424 (1975).
10. 2/2 and v=n where n≥1.)
11. M. R. Stinson, "A note of the use of an approximate formula to predict sound fields above an impedance plane due to a point source," J. Acoust. Soc. Am. 98, 1810-1814 (1995).
12. S. Taherzadeh and K. Attenborough, "Sound propagation from dipole and monopole sources in a stratified fluid above a layered poro-elastic solid," Computational Acoustics and its Environmental Applications, edited by C. A. Brebbia (Computational Mechanics Publications, Southampton, 1995), pp. 45-54.
13. K. Attenborough, "Ground parameter information for propagation modelling," J. Acoust. Soc. Am. 92, 418-427 (1992).
14. We wish to point out that Generalov's approximate solutions [his Eqs. (13)-(15)] for |w|≫1 do not yield accurate numerical results. Nevertheless, his "exact" solutions [Eqs. (7)-(10) of Ref. 5] agree with the numerical results of our asymptotic solution and quad-FFP.