Dynamic analysis of sea loads on pipelines on deck of FPSO type offshore structures

Strong water motions due to green water loading occur above main deck of offshore structures influenced by dynamic environmental loads like wind, wave, current etc. occasionally. It was researched relationship between sea loads due to green water loading and displacements on pipelines above main deck of a FPSO type offshore structure in this study. It was done computer aided case studies after mathematical model had been defined for analyzing behaviors of the subject pipeline. The case studies include relationships between the displacement values of different kinds of pipe and parameters of the mathematical model. When effects of the parameters are investigated, it shows that fluid velocity value of wave particulars is the most important one for the displacement. Additionally, length of pipe, mass of pipe and fluid velocity in pipe are the other important parameters for displacement values on pipe.