WIT Press


Application Of GAP And ROD Non-linear Finite Elements To Determination Of Wave Induced Loads Acting On Open Sea Fish Farms

Price

Free (open access)

Paper DOI

10.2495/MT030151

Volume

68

Pages

12

Published

2003

Size

573.71 kb

Author(s)

R. Klotzke, L. Konieczny & J. Szymczak

Abstract

Application of GAP and ROD non-linear finite elements to determination of wave induced loads acting on open sea fish farms R. Klotzke, L. Konieczny & J. Szymczak Ship Structures Division, Ship Design and Research Centre (CTO), Poland Abstract The present paper includes structural analysis and assessment of a set composed of 6 cages. The set floating on a wavy sea surface is subject to pressure and inertial forces. The preliminary analysis neglects, however, the dynamic effects assuming that the set of 6 cages is self-balanced. Such assumption is possible due to the fact that the natural period of cage heave and pitch is several times less than sea wave period. The analysis has been made for the cage set on calm water and for steep sinusoidal wave coming from various directions. Finite element method version applied in computer program MSC Nastran 70.7 was used for the analysis. For computation of 6-cage set special rod-type elements have been used in order to account for nonlinear relationshi

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