A BASELINE FINITE ELEMENT MODEL FOR INVESTIGATION OF OFFSHORE STRUCTURE DYNAMICAL BEHAVIOR USING PHYSICALMODELING AND WAVE MAKER FLUME

In this research the effect of mass increasing of an offshore platform on structural dynamics behavior is investigated both analytically and experimentally. For this purpose a 1:100 scalemodel of SPD1 platform are made and the tests are conducted for operational condition in a wave maker flume with irregular waves. Initial finite element model (FEM) of the pristine physical model is developed and updated according to experimental modal results. Model weightis changed by placing a mass on its deck. Comparison of the variation in natural frequencies for theoretical and experimental processes shows a good agreement for the first mode

Keywords:

Physical Model , Offshore , Wave Maker Flume , Dynamical Behavior