The numerical CFD-FEA method with a two-way flluid structure interaction(FSI)is used to predict the in-flatabie load-bearing floating bridge motion responses and structural deformation in regular wave conditions.In the FSI al-gorithm,the wave loads obtained from the CFD model are exchanged with the floating bridge motions and structure deform-ations obtained from the FEA model in an iteratively interleaved two-way coupling mechanism.The results show that,In regular wave conditions,the amplitude of the pitch motion of the inflatable load-bearing floating bridge shows a trend of first increasing and then decreasing with the increase of wave period.In regular wave conditions,the amplitude of heave mo-tion shows an increasing trend with the increase of wave period.The vertical bending moment of the mid section of the in-flatable load-bearing floating bridge shows a trend of first increasing and then decreasing with the increase of wave period.Through co-simulation with the inflatable load-bearing floating bridge,it is verified that the developed coupling method can simulate most of the physical characteristics of motion response and structural deformation of floating bridges under wave loads,promoting the development of floating bridge design theory.
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