Free vibration and dynamic response analysis of stiffened parabolic shells using equivalent orthotropic shell parameters

Dynamic response and free vibration analysis of stiffened shells having parabolic curvatures, with applications to ships and other similar structures are the main focus of this study. The energy approach is employed to the determination of equivalent orthotropic shell parameters of parabolic stiffen...

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Bibliographic Details
Published in:Latin American journal of solids and structures 2013-07, Vol.10 (4), p.747-766
Main Authors: Edalata, Pedram, Khedmati, Mohammad Reza, Soares, C. Guedes
Format: Article
Language:English
Subjects:
Dynamic Analysis
ENGINEERING, CIVIL
ENGINEERING, MECHANICAL
Equivalent orthotropic shell
MECHANICS
Parabolic curvature
Ship structure
Slamming
Stiffened shell
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Summary:Dynamic response and free vibration analysis of stiffened shells having parabolic curvatures, with applications to ships and other similar structures are the main focus of this study. The energy approach is employed to the determination of equivalent orthotropic shell parameters of parabolic stiffened shells. The unstiffened equivalent shell has proper accuracy in predicting free vibration characteristics as well as dynamic response of the main stiffened shell. Reducing the governing equation difficulties with suitable precision in free vibration and dynamic response analyses is the most advantage of replacement of stiffened shells with their unstiffened equivalences.
ISSN:1679-7825
1679-7825
DOI:10.1590/S1679-78252013000400005