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由于浮式平台升沉运动的影响,导致立管在水平方向上发生参激振动。参激振动可以引起立管平衡位置的不稳定性,此外,参激振动与涡激振动联合作用会改变立管振动响应特性,加剧立管疲劳破坏。为对深海立管参激振动进行深入研究,通过总结国内外立管参激振动研究的主要成果,介绍了立管参激振动的主要特点和动力学模型,归纳了深海立管参激振动研究的主要方向,并就研究中较为薄弱的一些环节,提出了一些建议。
Due to the influence of the floating platform heave motion, the vertical vibration of the riser occurs in the horizontal direction. Sensible vibration can cause instability in the position of riser equilibrium. In addition, the combination of parametric excitation and vortex-induced vibration can change the vibration response of riser and aggravate the fatigue failure of riser. In order to deeply study the ginseng-induced vibration of deep-sea vertical pipe, by summarizing the main achievements of domestic and foreign ginseng-induced vibration research, the main characteristics and dynamic model of ginseng-induced vibration are introduced, The main directions, and some of the more weak links in the study, put forward some suggestions.