Displacements induced by breaking waves on axially loaded cylindrical shells |
| |
| Authors: | Luis A Godoy |
| |
| Institution: | National University of Córdoba, Structures Department, Córdoba, Argentina |
| |
| Abstract: | Forced vibrations of the walls of a vertical cylindrical shell under the impact of a breaking wave are studied theoretically. The wave action is modelled as a pressure distribution which varies in time and space. A linear dynamic analysis of the transient response is carried out by means of the modal superposition technique, in which the static stresses are considered. The results show that in thin shells, the transient displacements could be of the order of the thickness of the shell. It is suggested that these large displacements could play an important role in eroding the buckling capacity of the structural component. The problem of limiting the dynamic displacements is discussed by interaction diagrams for static axial load-dynamic lateral pressure, and by examination of the confluence of shell and wave parameters for which the transient displacements do not exceed a given value. |
| |
| Keywords: | shell structures dynamics waves stability off-shore structures |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
