Study on the Strength of Bow Structures Subjected to Bow Flare Slamming Pressures and under Plunge Phenomenon
Date Issued
2009
Date
2009
Author(s)
Fan, Chiao-Fan
Abstract
The purpose of this article is to study the strength of containership due to bow flare slamming and plunge by using FEA (finite element analysis). In the numerical analysis, finite element software, MSC/Patran and Nastran are used to be the analytic tools.n slamming case, an actual containership with damage in bow structures is used as the sample ship, using the established FE (finite element) model including bow structures as an analytic target .Refer to the rules of classification society and references to know the wave impact pressure and duration time of wave impact, and then design different wave impact situations applied to the bow flare. Comparing the results of the analysis with the actual damaged part of the bow structure, we can know the real wave impacts, approximately.In plunge case, the sample ship is same as slamming case. This article takes the inertial force of the ship structure into consideration to modify the method provided from LR. Eliminating unreasonable constrained conditions of the LR method to achieve a much more realer phenomenon. Referring to the results obtained from this research approach, use it as the basis for the design of ship structures in the future.
Subjects
bow flare
wave impact pressure
duration time
plunge
FEA
Type
thesis
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