Dynamic Analysis and Critical Speed of Pressurized Rotating Composite Laminated Conical Shells Using Generalized Differential Quadrature Method

Author:

Ghayour M.,Ziaei Rad S.,Talebitooti R.,Talebitooti M.

Abstract

AbstractFree vibration analysis of rotating composite laminated conical shells with different boundary conditions using the generalized differential quadrature method (GDQM), is investigated. Equations of motion are derived based on Love's first approximation theory by taking the effects of initial hoop tension and the centrifugal and Coriolis acceleration due to rotation and initial uniform pressure load into account. Then, the equations of motion as well as the boundary condition equations are transformed into a set of algebraic equation applying the GDQM. The results are obtained for the frequency characteristics of different orthotropic parameters, rotating velocities, cone angles and boundary conditions. The presented results are compared with those available in the literature and good agreements are achieved.

Publisher

Oxford University Press (OUP)

Subject

Applied Mathematics,Mechanical Engineering,Condensed Matter Physics

Reference18 articles.

1. “Vibration and Critical Speed of Axially Loaded Rotating Orthotropic Cylindrical Shells,”;Daneshjou;Journal of Aerospace Science and Technology,,2007

2. A Block-Stodola eigensolution technique for large algebraic systems with non-symmetrical matrices

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5. 3. Reddy J. N. , Mechanics of Laminated Composite Plates and Shells: Theory and Analysis, 2ndEd., CRC press (2004).

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