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Paper Information

Journal:   JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC)   JUNE 2017 , Volume 4 , Number 1; Page(s) 53 To 65.
 
Paper: 

THREE-DIMENSIONAL ANALYSIS OF SOUND POWER TRANSMISSION THROUGH THICK LAMINATED COMPOSITE CYLINDRICAL SHELLS

 
 
Author(s):  TALEBITOOTI ROOHOLLAH*, CHOUDARI KHAMENEH AMIR MOHAMMAD, AHMADI REZA
 
* SCHOOL OF MECHANICAL ENGINEERING, IRAN UNIVERSITY OF SCIENCE AND TECHNOLOGY, TEHRAN, IRAN
 
Abstract: 

In this paper, an analytical solution is presented to study acoustic transmission through a laminated composite cylindrical shell. Therefore, a new and exact model is employed to solve the three-dimensional sound transmission loss in a composite cylindrical shell based on three-dimensional linear theory of elasticity. The model presented in this paper is a composite cylindrical shell with arbitrary thickness and infinite length and immersed in a fluid. Also an oblique plane wave impinges on the external sidewall of the shell. The state space method is used to investigate laminate approximated model along with transfer matrix approach to analysis the sound transmission loss though the composite cylindrical shells. The results obtained from presents study have been compared with those of other researchers. This comparison shows an excellent agreement between the results. Finally, the parameters affecting on the sound transmission loss have been studied. The results indicate that the laminated composite cylindrical shells are more advantageous rather than other materials as a result of enhancing the sound transmission loss with change the stacking sequence of laminated composite. This characteristic can be used to increase the amount of sound transmission loss in composite shells.

 
Keyword(s): SOUND TRANSMISSION LOSS, LAMINATED COMPOSITE, LINEAR ELASTICITY, STATE SPACE METHOD, TRANSFER MATRIX
 
References: 
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