期刊
JOURNAL OF VIBRATION AND CONTROL
卷 27, 期 9-10, 页码 1020-1035出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1077546320936537
关键词
Corrugated cylindrical shell; sandwich functionally graded structure; full-filled fluid; harmonic radial load; nonlinear vibration
This article proposes a semianalytical approach for the nonlinear free and forced asymmetric vibration of corrugated sandwich functionally graded cylindrical shells containing fluid under harmonic radial load. The numerical investigations for the nonlinear dynamic response of cylindrical shells are obtained by using the fourth-order Runge-Kutta method. Numerical results show the very large effects of corrugation and fluid on the natural frequency and nonlinear vibration behavior of shells.
This article proposes a semianalytical approach for the nonlinear free and forced asymmetric vibration of corrugated sandwich functionally graded cylindrical shells containing fluid under harmonic radial load. The corrugation is considered with two types: trapezoidal corrugation and round corrugation. By using the Donnell shell theory, taking into account the geometrical nonlinearity of von Karman and an equivalent model for corrugated structures, the governing equations of shell are established. The nonlinear motion equations are reduced to nonlinear differential equation in terms of time by applying the Galerkin procedure. The numerical investigations for the nonlinear dynamic response of cylindrical shells are obtained by using the fourth-order Runge-Kutta method. Numerical results show the very large effects of corrugation and fluid on the natural frequency and nonlinear vibration behavior of shells.
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