Local hydro-structure interactions due to slamming
conference paper
It is fair to say that the general seakeeping problem of ship advancing with arbitrary forward speed in rough waves is still a challenge and no fully satisfactory numerical model exists up to now. Indeed physics involved in this problem is extremely complex and includes many different physical phenomena which can not be handled by a single complete model. The usual practice consists in subdividing the problem into simpler problems targeting the specific applications. One of the very important practical problems concerns the slamming loads and their effects on ship structural responses. This is the main focus of the present paper. Only potential flow models for fluid flow are discussed and that both for seakeeping and slamming. Seakeeping model in time domain is constructed from the frequency domain data using the method proposed by Cummins 1962 and Ogilvie 1964. Once in the time domain slamming events are identified and treated using the strip approach with Generalized Wagner Model (GWM) for each strip. Pressure, which is calculated by GWM, is finally transferred to the FE model using the interpolation scheme and the final loading cases for FEM calculations are created. © 2009 Taylor & Francis Group.
TNO Identifier
241971
Source title
MARSTRUCT 2009, 2nd International Conference on Marine Structures - Analysis and Design of Marine Structures, 16 March 2009 through 18 March 2009, Lisbon, Conference code: 76627
Pages
45-49
Files
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