Determination of Acoustic Impedance of Walls Based on Acoustic Field Parameter Values Measured in the Room

• Authors: J. Piechowicz , I. Czajka
• Languages of publication: EN

Abstracts

EN

Acoustic field in enclosed rooms in the low frequency range can be described by the wave model, based on solution of the wave equation. Solution to the wave equation for acoustic field in the room can be obtained using numerical procedures, e.g. the boundary elements method. Determination of acoustic impedance of the room walls surface material, based on the knowledge of the distribution of acoustic pressure amplitudes in the enclosed space, requires application of the inverse boundary elements method and gathering a proper set of input data. The paper presents the possibilities of analysis of acoustic properties for industrial-type rooms, by using inverse methods in the low frequency range.

Keywords

EN

43.20.Ye; 43.55.Ev; 43.55.Cs; 43.55.Dt

• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 123
• Issue: 6
• Pages: 1068-1071

Dates

published

2013-06

Contributors

author

J. Piechowicz

• AGH - University of Science and Technology, Faculty of Mechanical Engineering and Robotics Department of Mechanics and Vibroacoustics, al. A. Mickiewicza 30, 30-059 Krakow, Poland

author

I. Czajka

• AGH - University of Science and Technology, Faculty of Mechanical Engineering and Robotics Department of Mechanics and Vibroacoustics, al. A. Mickiewicza 30, 30-059 Krakow, Poland

References

• [1] Z. Engel, J. Piechowicz, L. Stryczniewicz, Fundamentals of industrial Vibroacoustics, AGH, Kraków 2003, [in Polish]
• [2] J. Piechowicz, Archiv. Acoust. 34, 169 (2009)
• [3] J. Piechowicz, Archiv. Acoust. 32, 313 (2007)
• [4] R.D. Ciskowski, C.A. Brebbia, Boundary Element Methods in Acoustics, Computational Mechanics Publications and Elsevier Science Publisher, 1991
• [5] J. Piechowicz, Acta Phys. Pol. A 121, A-183 (2012)
• [6] J. Piechowicz, Int. J. Occupat. Saf. Ergonom. 17, 271 (2011)
• [7] J. Piechowicz, I. Czajka, Archiv. Acoust. 37, 97 (2012)
• [8] J. Piechowicz, Acta Phys. Pol. A 119, 1040 (2011)

Identifiers

DOI

10.12693/APhysPolA.123.1068