Numerical investigation ot the finite amplitude wave pressure distribution radiated by a circular transducer

• Autorzy: Dobrociński S. , Kozaczka E. , Grelowska G.
• Konferencja: International Symposium on HYDROACOUSTICS AND ULTRASONICS EAA Symposium (formerly 13th FASE Symposium) Gdańsk-Jurata, 12-16 May 1997
• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of numerical investigations of the circular transducer's nearfield. The investigations were carried out applying the numerical solution (FEM) of the nonlinear acoustics equation. It was assumed that the transducer generated harmonic vibrations. Different pressure distributions at the transducer's surface were taken to determine pressure distributions in its nearfield.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 1997
• Tom: Vol. 1
• Strony: 71--74
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Dobrociński S.

• Naval Academy ul.Śmidowicza 71, 81-919 Gdynia, Poland

autor

Kozaczka E.

• Naval Academy ul.Śmidowicza 71, 81-919 Gdynia, Poland

autor

Grelowska G.

• Naval Academy ul.Śmidowicza 71, 81-919 Gdynia, Poland

Bibliografia

• 1. I. Aanonsen, T. Barkve, J. Naze Tjøtta, S. Tjøtta, (1984), Distortion and harmonie generation in the nearfield of a finite amplitude sound beam, J. Acoust. Soc. Am., 75, 749-768.
• 2. N. S. Bachvalov, Ya. M. Zhileikin, E. A. Zabolotskaya, (1987), Nonlinear theory ot sound beams, AlP, New York.
• 3. P. T. Christopher, K. J. Parker, (1991), New approaches to the Iinear propagation of acoustic fields, J. Acoust. Soc. Am., 90, 507-521.
• 4. F. Coulouvrat, K. E. Freysa, (1993). An approximate solution for the propagation of a finite-amplitude pulsed sound beam, Advances in 74 nonlinear acoustics, World Scientifie, London 239- 244.
• 5. G. Du, M. A. Breazeale, (1986), Harmonie distortion of a finite amplitude Gaussian beam in a fluid. J. Acoust. Soc. Am., 80, 212-216.
• 6. K. E. Freysa, J. N. Tjøtta, J. Berntsen, (1993), Finite amplitude effects in sound beams, pure tone and pulsed excitation, Advances in nonlinear acoustics, World Scientific, London, 233-238.
• 7. M. F. Hamilton, J. Naze Tjøtta, S. Tjøtta, (1985), Nonlinear effects in the farfield of a directive sound source, J. Acoust. Soc. Am., 202-216.
• 8. F. Ingenito, A. O. Williams, Jr., (1971). Calculation of second-harmonic generation in a piston beam, J. Acoust. Soc. Am .• 49, 319-328.
• 9. E. Kozaczka, (1988), lntroduction 10 the nonlinear hydroacoustics theory, Naval Academy Press, Gdynia (in Polish).
• 10. E. Kozaczka, S. Dobrociński, A. Baranowska, G. Grelowska, L. Solarz, (1995), Mathematical modell ing of the nonlinear wave propagation in water, Proceedings of XII Symposium on Hydroacoustics, Gdynia - Jurata (in Polish).
• 11. V. E. Kunicyn. O. V. Rudenko, (1978), Generation of the second harmonics in the field of a piston transducer, Sov. Phys. Acoust., 24, 4, 549- 555 (in Russian).
• 12. P. R. Stepanishen, K. C. Benjamin, (1982), Forward and baekward profection of acoustic fields using FFT methods, J. Acoust. Soc. Am., 71, 803- 811.
• 13. T. L. Szabo, (1993), Time domain nonlinear wave equations for lossy media, Advances in nonlinear acoustics, World Scientific, London, 89- 94.
• 14. J. N. Tjøtta, S. Tjøtta, (1980), An analytical model for the nearfield of a baffled piston transducer, J. Acoust. Soc. Am., 68, 334-339.
• 15. C. J. Vecchio, P. A. Lewin, (1994), Finite amplitude acoustie propagation modeling using the extended angular spectrum method, J. Acoust. Soc. Am., 95, 2399-2408.
• 16. L. K. Zarembo, V. I. Timoshenko, Nonlinear acoustics, (1984), Moscow University Press, Moseow (in Russian)
• 17. J. Zemanek, (1971), Beam behavior within the nearfield of a vibrating piston, J. Acoust. Soc. Am., 49,181-191.
• 18. Ya. M. Zhileikin, M. V. Vladimirov, (1993), Dialogue system for PC - nonlinear aeoustics, Advances in nonlinear acoustics, World Scientific, London, 86-88.