Wave transmission through laminated composite double-walled cylindrical shell lined with porous materials

doi:10.1007/s10483-011-1450-9

Abstract

Abstract:

A study on free harmonic wave propagation in a double-walled cylindrical shell, whose walls sandwich a layer of porous materials, is presented within the framework of the classic theory for laminated composite shells. One of the most effective components of the wave propagation through the porous core is estimated with the aid of a flat panel with the same geometrical properties. By considering the effective wave component, the porous layer is modeled as a fluid with equivalent properties. Thus, the model is simplified as a double-walled cylindrical shell trapping the fluid media. Finally, the transmission loss (TL) of the structure is estimated in a broadband frequency, and then the results are compared.

Key words: cylindrical laminated composite shell, porous media, transmission loss

2010 MSC Number:

74F10
74J20

K. DANESHJOU;H. RAMEZANI;R. TALEBITOOTI. Wave transmission through laminated composite double-walled cylindrical shell lined with porous materials. Applied Mathematics and Mechanics (English Edition), 2011, 32(6): 701-718.

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