An Application of the Inverse Method in the Vibroacoustic Analysis of Industrial Rooms

• Authors: J. Piechowicz
• Languages of publication: EN

Abstracts

EN

The problem of identification and localization of sound sources inside industrial rooms, including cases when the density of sound sources is considerable, can be solved by application of inverse methods. The experimental knowledge about the distribution of acoustic field in the neighborhood of the examined object, followed by the reversal of the model used for sound generation and propagation, leads to evaluation of the object's acoustic power. For the cases when determination of the rooms' acoustical properties is required the combination of the inverse method with the boundary elements method allows the calculation of acoustic impedance for the surface delimiting the examined room. The paper presents the prospects of the inverse method application in the mentioned vibroacoustic problems.

Keywords

EN

43.20.Ye; 43.55.Ev; 43.55.Dt

• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 1A
• Pages: A-183-A-187

Dates

published

2012-01

Contributors

author

J. Piechowicz

• AGH University of Science and Technology, 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, Ed. AGH, Kraków 2003 (in Polish)
• [2] L. Stryczniewicz, J. Piechowicz, in: Proc. XXXV Winter School of Control Vibroacoustic Hazards, Gliwice-Ustroń (Poland), Polish Acoustical Society, Gliwice 2007, p. 157 (in Polish)
• [3] G.P. Nava, Y. Yasuda, S. Sakamoto, Acoust. Sci. Tech. 30, 100 (2009)
• [4] J. Piechowicz, Int. J. Occupat. Safety Ergon. 17, 271 (2011)
• [5] L. Stryczniewicz, J. Piechowicz, in: Proc. 2nd Int. Conf. on Experiments/Process/System Modelling/Simulation and Optimization, Athens (Greece), Laboratory of Fluid Mechanics and Energy Patras, Athens 2007
• [6] R.D. Ciskowski, C.A. Brebbia, Boundary Element Methods in Acoustics, Computational Mechanics Publications and Elsevier Sci. Publ., Southampton 1991
• [7] A.A. Becker, The Boundary Element Method in Engineering. A Complete Course, McGraw-Hill, London 1992
• [8] J. Piechowicz, Arch. Acoust. 34, 169 (2009)
• [9] Y. Kim, P.A. Nelson, J. Sound Vibrat. 275, 463 (2004)
• [10] P.A. Nelson, S.H. Yoon, J. Sound Vibrat. 233, 643 (2000)
• [11] A. Tarantola, Inverse Problem Theory, Elsevier Sci. B.V., Amsterdam 2002
• [12] H.W. Engl, M. Hanke, A. Neubauer, Regularisation of Inverse Problem, Kluver Academic Publisher, Boston 1996
• [13] J. Piechowicz, Arch. Acoust. 31, 287 (2006)
• [14] A.N. Tikhonov, Dokl. Akad. Nauk SSR 153, 49 (1963) (in Russian)
• [15] J. Piechowicz, Arch. Acoust. 32, 313 (2007)

Identifiers

DOI

10.12693/APhysPolA.121.A-183