Load Analysis of Connectors for Floating Structures at Sea

Abstract

Taking four modules of offshore floating structure connectors as the research object, the time domain analysis using the hydrodynamic calculation software AQWA was used to obtain the load amplitude of the connectors under different environmental effects. Based on the three-dimensional potential flow theory of hydrodynamics, the models of four modules of offshore floating structures in mooring state and three groups of connectors in the middle are established in AQWA, and the influence of environmental action changes on connectors and the time history curve of the load on connectors are simulated and calculated in five different sea states and seven different wave incidence angle marine environments. The calculation results show that the floating structure can be detached when the sea state is level 6, and the floating structure should be tried to avoid the wave angle of 45° when working, the longitudinal load amplitude of the connector is greater than the transverse and vertical load amplitude, and the load fluctuations of the connector in different directions are more balanced.