An Improved Version of ETS-Regression Models in Calculating the Fixed Offshore Platform Responses

An offshore structural design should accurately calculate wave loads and responses acting on slender cylinders. The hydrodynamic drag-dominated force was always challenging, hence the loading became a complex solution; it led to nonlinear relation between caused by diffracted radiated waves, which included in Morison’s equation. For more consistency assessment, linearised drag–inertia considered model development, such as an improved version of efficient time simulation regression (ETS-Reg) procedure that introduced. study aimed improve prediction using predetermined linear, polynomial, cubic models. These simulations were performed focusing high sea state conditions without wave-induced current effects. In order evaluate level accuracy, recent ETS-Reg models compared validated Monte Carlo (MCTS) method. amended model, known ETS-RegLR also with previous results obtained conventional (ETS-RegSE), leading better response calculations.