海底管道涡激振动和管道周围海床冲刷是海流—管道—海床之间复杂的动力耦合问题。文章应用量纲分析方法对海流、管道与海床之间的动力耦合作用进行了分析,确定了在实验模拟中应遵循的相似准则。在此基础上,研制了一套能模拟海流、海床与海底管道之间相互作用的实验模拟装置。初步实验结果表明文中研制的实验模拟装置能够模拟典型海洋环境下海底管道的涡激振动和管道周围海床冲刷等问题。 The vortex-induced vibration of submarine pipelines and the scouring around the pipelines are complex dynamic coupling problems between current-pipe-sea floor. In this paper, the dynamic coupling between ocean currents, pipelines and seabed is analyzed by using the dimensional analysis method, and the similarity criterion to be followed in the experimental simulation is determined. On this basis, a set of experimental simulation device that can simulate the interaction between ocean current, sea floor and submarine pipeline was developed. The preliminary experimental results show that the experimental simulation device developed in this paper can simulate the vortex-induced vibration of submarine pipelines and the scouring around the pipelines in a typical marine environment.