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Numerical simulation of flat plate structure with passive heave compensator entering in splash zone

Passive wave compensation (PHC) is widely used in offshore resource exploitation, with a series of advantages such as improved operating window. However, the structures which are in the splash zone will often be damaged. Appropriate PHC's system parameters can improve the compensation efficiency in specific sea conditions. In this paper, based on the theory of potential flow, the slamming force prediction model, the PHC system model and the coupling model are proposed. Through numerical simulation, the results show that: (1) PHC can also compensate the slamming force; (2) Impact of slamming force on compensation efficiency. Based on the numerical simulation and analysis,new ideas is provided for the selection of PHC's parameters.