An exact solution of three-dimensional elasticity for sound transmission loss through FG cylinder in presence of subsonic external flow

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• 作者：K. Daneshjou^a ; R. Talebitooti^a ; ^{rtalebi@iust.ac.ir} ; A. Tarkashvand^b
• 关键词：3-D elasticity theory ; Functionally graded material ; Laminate model ; Transmission loss ; Transfer matrix method
• 刊名：International Journal of Mechanical Sciences
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：120
• 期：Complete
• 页码：105-119
• 全文大小：2557 K
• 卷排序：120

文摘

The FG cylinder is approximated with a laminated model whereas an increase in number of layers will improve the accuracy. The governing equations of motion for each layer are derived, based on three-dimensional elasticity theory. The presented method is compared with the thin shell theory and TSDT. The values of the ring, critical and coincidence frequencies for an FG cylinder are estimated. TL is varied as consequences of changing the volume fractions through the thickness of FG cylinder.