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Spar平台由于其优良的特性,近年来,在深水工程领域,得到了越来越广泛的应用.Spar平台由于其特有的几何特性,从而导致其在水流中可能产生涡激运动.文中针对Spar平台的刚体特性,建立了Spar平台与尾流振子之间的耦合运动方程,利用该方法对一模型平台进行了数值验证,计算得到的锁定区域与实验测得的结果吻合良好.接着对一真实的Spar平台进行了计算,并得到Spar平台和尾流振子的时间历程曲线.结果表明Spar平台的运动幅度以及运动周期比通常涡激振动的幅度以及周期要大.
Due to its excellent characteristics, Spar platform has been more and more widely used in deepwater engineering in recent years.Spar platform due to its unique geometry, which may lead to its vortex flow in the water flow.In this paper, for the Spar platform , The coupling equation of motion between the Spar platform and the wake oscillator is established, and the numerical simulation of a model platform is performed by using this method. The calculated locking region is in good agreement with the experimental data. Then, Spar platform was calculated and the time history curves of Spar platform and wake oscillator were obtained.The results show that the amplitude and period of movement of Spar platform are larger than the amplitude and period of normal eddy-Vibration.