Orthotropic influence on frequency characteristics of a rotating compositelaminated conical shell by the generalized differential quadrature method

By using the generalized differential quadrature (GDQ) method, this paper p resents the influence of orthotropic material on the frequency characterist ics for a rotating thin truncated circular symmetrical cross-ply laminated composite conical shell with simply-supported boundary conditions at both e dges. The present analysis includes the effects of initial hoop tension and the centrifugal and coriolis accelerations due to rotation. Frequency char acteristics is obtained for various orthotropic parameters; the orthotropic influences of material on the frequency characteristics are also discussed for different cone angles, To validate the accuracy and efficiency of pres ent analysis by the GDQ method. comparisons are made with those available i n open literature; very good agreements are achieved. (C) 2001 Elsevier Sci ence Ltd, All rights reserved.