Analytical Model of Sound Transmisstion through Orthotropic Cylindrical Shells
Publish place: 13th Annual Conference of Mechanical Engineering
Publish Year: 1384
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ISME13_561
تاریخ نمایه سازی: 21 اسفند 1385
Abstract:
Circular thin orthotropic shells have many application in the Aerospace Industries Such as aircraft. Analytical study is conducted in this paper to understand the characterstis of sound transmission through the ortotropic cylindrical shell. Using an infinitely long circular cylindrical shell subjected to a plane wave with uniform airflow in the external fluid medium, an exact solution is obtained by solveing the classical shell vibration equations and acoustic wave equation simultaneously. Transmission losses obtained from the sloution are compared with “Koval”. Eventualy, the numerical results show the effects of Orthotropy ratio, Fiber direction, geometrical properties, Mach number, material properties.
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Authors
Kamran Daneshjou
Assosiated profosor Departement of Mechanical Engineering Iran University of Scince and Technology
Roohollah Talebi Tooti
PHD student Departement of Mechanical Engineering Iran University of Scince and Technology
Ali Nouri
PHD student- Faculty of Air University Departement of Mechanical Engineering Iran University of Scince and Technology