Wave Transmission Through Laminated Composite Double-Walled Cylindrical Shell Lined With Porous Materials

K. Daneshjou; H. Ramezani; R. Talebitooti

doi:10.3879/j.issn.1000-0887.2011.06.003

Volume 32 Issue 6

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K. Daneshjou, H. Ramezani, R. Talebitooti. Wave Transmission Through Laminated Composite Double-Walled Cylindrical Shell Lined With Porous Materials[J]. Applied Mathematics and Mechanics, 2011, 32(6): 658-673. doi: 10.3879/j.issn.1000-0887.2011.06.003

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Wave Transmission Through Laminated Composite Double-Walled Cylindrical Shell Lined With Porous Materials

doi: 10.3879/j.issn.1000-0887.2011.06.003

1.
Department of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran;
Department of Automotive Engineering, Iran University of Science and Technology, Tehran, Iran

Received Date: 2010-06-04
Rev Recd Date: 2011-03-22
Publish Date: 2011-06-15

Abstract

Abstract

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

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References(15)

References

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