Frequency analysis of rotating truncated circular orthotropic conical shells with different boundary conditions

In this paper, a study is made of the influences of orthotropic properties and boundary conditions on the free vibrations of a rotating, truncated, ci rcular orthotropic conical shell. The study includes the effects of the Cor iolis and centrifugal accelerations and the initial hoop tension. It is bas ed on the Love first-approximation theory and Galerkin procedure, Results a re obtained for the frequency characteristics of different orthotropic para meters, rotating velocities, cone angles and boundary conditions. Influence s of orthotropic properties and boundary conditions on the relationships be tween frequency parameter and rotation velocity are discussed for different cone angles. To validate the present analysis, comparisons are made with t hose available in the open literature and very good agreements are obtained . (C) 2000 Elsevier Science Ltd. All rights reserved.