سال انتشار: ۱۳۸۸
محل انتشار: هشتمین همایش انجمن هوافضای ایران
تعداد صفحات: ۸
Mohammad Hssan Pachenari – faculty member at university of applied science an technology, university of applied science an technology (Elmi karbordi university)-tehran enghelab ave. post graduate (msc) of khaje nasir tossi university
Ali Mozafari – PHD and faculty member at khaje nasir tossi university, khaje nasir toosi university-tehran forth sq Tehran pars
An approximate analysis for free vibration of a laminated curved panel (shell) with four edges simply supported (SS2), is presented in this paper. The transverse shear deformation is considered by using a higher-order shear deformation theory. For solving the highly coupled partial differential governing equations and associated boundary condition, a set of solution functions in the form of double trigonometric Fourier series, which are required to satisfy the geometry part of the considered boundary conditions, is assumed in advance. By applying the Galerkin procedure both to the governing equations and to the natural boundary conditions not satisfied by the assumed solution functions, an approximate solution, capable of providing a reliable prediction for the global response of the panel, is obtained. Numerical results of antisymmtric angle-ply as well as symmetric cross-ply and angle-ply laminated curved panels are presented and discussed.