SOUND TRANSMISSION ACROSS DOUBLE-WALLED ORTHOTROPIC CYLINDRICAL SHELLS UNDER INCIDENCE WAVE WITH TWO VARIOUS ANGLES BASED ON THE THREE-DIMENSIONAL ELASTICITY THEORY

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TALEBITOOTI ROUHOLLAH; CHOUDARI KHAMENEH AMIR MOHAMMAD

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:9 Page(s): 1-11

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Title

SOUND TRANSMISSION ACROSS DOUBLE-WALLED ORTHOTROPIC CYLINDRICAL SHELLS UNDER INCIDENCE WAVE WITH TWO VARIOUS ANGLES BASED ON THE THREE-DIMENSIONAL ELASTICITY THEORY

Author(s)

TALEBITOOTI ROUHOLLAH | CHOUDARI KHAMENEH AMIR MOHAMMAD | Issue Writer Certificate

Keywords

SOUND TRANSMISSION LOSS THREE-DIMENSIONAL ELASTICITY DOUBLE-WALLED ORTHOTROPIC STATE SPACE METHOD TRANSFER MATRIXQ2

Abstract

In this paper, sound transmission loss through double-walled orthotropic cylindrical shells based on three-dimensional elasticity theory is investigated. Hence, the purpose of this paper is to analyze the effect of the acoustic wave incidence under two different angles on sound transmission loss through the shell. The present model is a double-walled orthotropic cylindrical shell immersed in a fluid with an infinite length, whereas the acoustic plane incident waves impinge upon the shell with two different angels of q and d. The state space method is used to investigate the laminate approximated model along with transfer matrix approach for modeling both walls of cylindrical shell. In order to consider the two different angles of q and d, the corresponding wave equations have been modified according to the wave numbers. Comparing the results obtained from the present study with those of other researchers shows an excellent agreement between the results. Moreover, the effects of different parameters on sound transmission loss through the shell have been evaluated. The results show an enhancement of sound transmission loss in double-walled cylindrical shells rather than single-walled cylindrical shells, particularly in high frequency range. Also, the results indicate the dependency of sound transmission loss on both the q and d angles. In other words, the variation in two incident angles may cause significant variations in sound transmission loss.

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APA: Copy

TALEBITOOTI, ROUHOLLAH, & CHOUDARI KHAMENEH, AMIR MOHAMMAD. (2016). SOUND TRANSMISSION ACROSS DOUBLE-WALLED ORTHOTROPIC CYLINDRICAL SHELLS UNDER INCIDENCE WAVE WITH TWO VARIOUS ANGLES BASED ON THE THREE-DIMENSIONAL ELASTICITY THEORY. MODARES MECHANICAL ENGINEERING, 16(9), 1-11. SID. https://sid.ir/paper/179799/en

Vancouver: Copy

TALEBITOOTI ROUHOLLAH, CHOUDARI KHAMENEH AMIR MOHAMMAD. SOUND TRANSMISSION ACROSS DOUBLE-WALLED ORTHOTROPIC CYLINDRICAL SHELLS UNDER INCIDENCE WAVE WITH TWO VARIOUS ANGLES BASED ON THE THREE-DIMENSIONAL ELASTICITY THEORY. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(9):1-11. Available from: https://sid.ir/paper/179799/en

IEEE: Copy

ROUHOLLAH TALEBITOOTI, and AMIR MOHAMMAD CHOUDARI KHAMENEH, “SOUND TRANSMISSION ACROSS DOUBLE-WALLED ORTHOTROPIC CYLINDRICAL SHELLS UNDER INCIDENCE WAVE WITH TWO VARIOUS ANGLES BASED ON THE THREE-DIMENSIONAL ELASTICITY THEORY,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 9, pp. 1–11, 2016, [Online]. Available: https://sid.ir/paper/179799/en

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