Analyses of damaged effects on jacket type offshore platform

In this paper, an offshore platform subjected to dynamic loading for different damage cases was modelled via fluid-structure interaction (FSI) analysis. Different models were considered in the case where one leg broken, and Young’s modulus of damaged member reduced with four severity ratios. addition five structures, undamaged structure according two spacing conditions. Thus, compared among themselves as well models. study, investigated using a numerical FSI technique. The technique verified semi-analytical modelling. At stage, equation motion structural solved method based on multi-degree-of-freedom system. addition, environment model solution free-surface wave velocity-wave force curve. An Abaqus finite-element analysis program used structures their surroundings. While Lagrangian technique, fluid surroundings Eulerian Both conditions ratios modelled, most negative type revealed.