Nonlinear Oscillation of a FG Cylindrical Shell on a Discontinuous Elastic Foundation

被引：0
|
作者：
Silva, Frederico M. A. [1 ]
Rodrigues, Patricia C. [1 ]
Goncalves, Paulo B. [2 ]
机构：
[1] Univ Fed Goias, Sch Civil & Environm Engn, Goiania, Go, Brazil
[2] Pontificia Univ Catolica Rio de Janeiro, Dept Civil Engn, Rio de Janeiro, Brazil
来源：
NEW TRENDS IN NONLINEAR DYNAMICS, VOL III: PROCEEDINGS OF THE FIRST INTERNATIONAL NONLINEAR DYNAMICS CONFERENCE (NODYCON 2019) | 2020年
关键词：
Cylindrical shell; FGM; Partial elastic foundation; Nonlinear vibrations;
D O I：
10.1007/978-3-030-34724-6_9
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
The aim of the present work is to investigate the influence of the elastic foundation discontinuities on the nonlinear response of a functionally graded cylindrical shell with internal flowing fluid. The fluid is assumed to be inviscid and incompressible and the flow, isentropic and irrotational. Nonlinear Donnell shallow shell theory is used to obtain the nonlinear partial differential equations of motion and the elastic foundation is described by the Pasternak model. Resonance curves are obtained to identify the nonlinear forced behavior of the FG cylindrical shell conveying fluid and surrounded by a discontinuous elastic foundation. Different configurations of discontinuities of elastic foundation and axial fluid flow velocities are considered, showing the influence of these parameters on the stable paths of resonance curves.
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页码：79 / 88
页数：10
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