中文摘要：

建立海洋平台和减振系统的振动模型,推导出结构的动力放大系数,以动力放大系数最小为系统参数优化的目标,应用MATLAB编程,得出减振系统的最优参数。并以海洋平台相似模型为算例,应用减振系统对结构的第一阶模态进行振动控制时的减振效果进行仿真分析,结果表明减振系统对平台具有良好的振动控制效果。

英文摘要：

The vibration model of offshore platform and the vibration control system is established and the structural dynamic amplification factor is obtained. The minimum of the structural dynamic amplification factor is used as the aim of parameter optimization of the vibration control system. The optimal parameters are obtained by a serf - developed computer program using Matlab. A similar model of an offshore oil storage platform is used as an example to perform the vibration control of the first order mode of the platform. The simulation results show that the vibration control system has satisfactory vibration control effects.