Nonlinear hydrodynamic characteristics of multi-body platform system

Along with the technology development of ocean resources, offshore platforms are gradually becoming larger and more complex. Recent oil gas field in deep-water region often involves multiple floating adjacent to each other perform complex functions for production. This paper describes investigation carried out on dynamic responses a two system containing Tension Leg Platform (TLP) tender assisted drilling (TAD) flexible connection between platforms. The mooring lines tendons taken into consideration coupled analysis multi-body platform’s system. motion wave load characteristics model investigated numerical simulation. Compared situation isolation, it is revealed that altered by combined effects platforms’ interaction constrain connection. can increase both first- second-order force arrangement direction Quantitative demonstrates their relative importance thus provides much-needed guidance practical design