Author(s)

M. Amabili, R. Garziera & F. Pagnanelli

Abstract

Comparison of theoretical and experimental results for large-amplitude vibrations of fluid filled^ circular cylindrical shells M. Amabili, R. Garziera & F. Pagnanelli Department of Industrial Engineering, University of Parma, Italy. Abstract The large-amplitude response of imperfect, simply supported circular cylindrical shells to a harmonic excitation in the spectral neighbourhood of one of the lowest natural frequencies is investigated. Donnell's nonlinear shallow-shell theory is used and the solution is obtained by Galerkin projection. A multi-degree-of- freedom mode expansion is used. The boundary conditions on radial displacement and the continuity of circumferential displacement are exactly satisfied. The effect of internal quiescent, incompressible and inviscid fluid is investigated. The equations of motion are studied by using a code based on arclength continuation method. Validation of the present model is obtained by comparison with experimental results on a water-f

Keywords