Dynamic response estimation of offshore due to design wave load

An adequate estimation of wave load to offshore structure is essential to evaluate its stability in its future usage. Despite uncertainty relevant to its extreme valure, static wave load based on Morison's equation is conventionally used in design process because of its usefulness. Though random vibration analysis provides accurate estimation of structural response corroborated reliability, it is obviously inefficient to analyze dynamic response in each design step. In this study, a design wave load in static analysis is examined to ensure efficiency of design process and reliability of structure simultaneously. It is suggested that the maximum value of the dynamic response of the offshore structure can be evaluated with the approximate maximum wave force based on static analysis