Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지

Multi-Domain Structural-Acoustic Coupling Analysis Using the Finite Element and Boundary Element Techniques

  • Ju, Hyeon-Don (Graduate School, Department of Mechanical Design Engineering, Pusan National University) ;
  • Lee, Shi-Bok (School of Mechanical Engineering, Pusan National University)
  • Published : 2001.05.01
Download PDF
⟨ Previous Next ⟩

Abstract

A new approach to analyze the multi-domain acoustic system divided and enclosed by flexible structures is presented in this paper. The boundary element formulation of the Helmholtz integral equation is used for the internal fields and the finite element formulation for the structures surrounding the fields. We developed a numerical analysis program for the structural-acoustic coupling problems of the multi-domain system, in which boundary conditions such as the continuity of normal particle velocity and sound pressure in the structural interfaces between Field 1 and Field 2 are not needed. The validity of the numerical analysis program is verified by comparing the numerical results with the experimental ones. Example problems are included to investigate the characteristics of the coupled multi-domain system.

Keywords

References

  1. Cheng, C. Y. R. and Seybert, A. F., 1991, 'A Multi-Domain Boundary Element Solution for Silencer and Muffier Performance Prediction,' J. of Sound and Vibration, Vol. 151, No. 1, pp, 119-129 https://doi.org/10.1016/0022-460X(91)90655-4
  2. Ciskowski, R. D. and Brebbia, C. A., 1991, Boundary Element Methods in Acoustics, Computational Mechanics Publications
  3. Fahy, F. J., 1985, Sound and Structural Vibration, Academic Press
  4. Hong, C. S., Shin, K. K., 1997, 'Applications of General-Purpose Package for Fluid-structure Interaction Problems,' Journal of KSNVE, Vol. 7, No.4, pp. 571-578
  5. Kang, D. C., Ju, H.D. and Lee, S. B., 1999, 'Multi-Domain Structural-Acoustic Coupling Analysis Using Finite Element and Boundary Element Technique,' Proceedings of the KSNVE, Fall Annual Meeting, pp. 928-935
  6. Koki, Shiohata, Kanako, Nemoto and Takuzou, Iwatsubo, 1998, 'A Large Scale Structural-Acoustic Analysis Method,' Journal of the JSME(C Part), Vol. 64, No. 622, pp. 125-130
  7. Lee, C. M., 1996, 'Application of Finite Element and Boundary Element Methods to Predict Steady-State Response of a Structure-Acoustic-Cavity System,' Trans. of KSME(A Part), Vol. 20, No.5, pp. 1383-1391
  8. Lee, D. I., Oh, J. E., 1996, 'A Free Vibration Analysis of Sound-Structure Interaction Plate,' Trans. of KSME(A Part), Vol. 20, No.8, pp. 2546-2554
  9. Petyt, M., 1990, Introduction to Finite Element Vibration Analysis, Cambridge University Press
  10. Seybert, A. F., Soenarko, B. and Rizzo, F.J. and Shippy D. J., 1985, 'Advanced Computational Method for Radiation and Scattering of Acoustic Waves in Three Dimensions,' J. Acoustical Society of America, Vol. 77, No.2, pp. 362-368 https://doi.org/10.1121/1.391908
  11. Seybert, A.F. and Cheng, C. Y. R., 1987, 'Application of the Boundary Element Method to Acoustic Cavity Response and Muffler Analysis,' J. of Vibration, Acoustics, Stress, and Reliability in Design, Vol. 109, pp. 15-21
  12. Suzuki, S., 1989, 'Boundary Element Analysis of Cavity Noise Problems with Complicated Boundary Conditions,' J. of Sound and Vibration, Vol. 130, pp. 79-91 https://doi.org/10.1016/0022-460X(89)90521-X
  13. Wu, T.W. and Dandapani, A., 1994, 'A Boundary Element Solution for Sound Transmission Through Thin Panels,' J. of Sound and Vibration, Vol. 171, No.2, pp. 145-157 https://doi.org/10.1006/jsvi.1994.1110