Paper Title:
The Effects of Blockage on the Propagation of Acoustic Waves in the Liquid-Shell Coupled System

The free vibration of a fluid/structure system consisting of a cylindrical blockage submerged in a liquid enclosed by a cylindrical shell is investigated for the purpose of pipe line transportation monitoring. The wavenumbers are obtained and the reflection and transmission characteristics of these waves at the blockage interfaces are investigated theoretically. Reflection and transmission ratios are obtained in the axisymmetric mode, as functions of frequency. High order modes play an important role in the near field of the discontinuity and are taken into account.

Key Engineering Materials (Volumes 413-414)
Edited by
F. Chu, H. Ouyang, V. Silberschmidt, L. Garibaldi, C.Surace, W.M. Ostachowicz and D. Jiang
W. B. Duan, F. S. Gu, I. Dupère, S. Zhong, A. Ball, "The Effects of Blockage on the Propagation of Acoustic Waves in the Liquid-Shell Coupled System", Key Engineering Materials, Vols 413-414, pp. 327-333, Jun. 2009
Online since
June 2009
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