Based on the flow-induced motion energy conversion system,varied spacing ratio and stiffness were applied as parameters to estimate the amplitude,frequency of the rigidly coupled triangular prisms.Spacing between triangular prisms were varied to adjust the spacing ratio,as well as the system stiffness is varied to study the effect of stiffness on the oscillation system.The purpose of the experimental tests is aimed to investigate the optimal conditions for the oscillation system,and expand the research topics on flow-induced motion for multi-coupled prisms.The experimental conclusions can be summarized as follows:Appreciable oscillation can be observed at different system stiffness.As the flow velocity continues to increase,the oscillation performs as typical soft galloping.In all the experimental tests,the case of S/D=1 presents optimal oscillation,and the maximum amplitude ratio is A*=1.25(K=1 800 N/m,S/D=1,Ur=10).
关键词
海流能利用/流致振动/刚性联动三棱柱/涡激振动/振动响应
Key words
ocean current energy utilization/flow induced motion/rigidly coupled triangular prisms/vortex induced vibration/oscillation response
维普
万方数据