考虑流体-桩-土相互作用的独桩平台波浪响应的TMD 控制研究

采用调谐质量阻尼器对独桩平台的波浪响应进行控制，在对受控结构的波浪响应进行随机振动分析时，考虑了流体－桩土桩互作用的影响，通过一算例具体讨论了TMD的参数对控制效果的影响，计算经表明，适当选择TMD的参数可有效地控制独桩平台的波浪响应，因此TMD在简易平台的振动控制领域有着良好的应用前景。

Study of Wave Response Control for Single Pile Platform by using TMD considering Fluid-Pile-Soil Interaction

The single plie platform is a kind of simple platform fit for the exploitation of the marginal oil field in shallow sea. In order to improve its reliability under severe sea conditions, the tuned mass damper (TMD) is used to control the wave response of the platform when the wave response equations of the single pile platform with the TMD are founded, the fluid pile soil interaction is consi dered. The random vibration analysis is carried out for the wave response of the controlled structure, so that the expression of control effect of the TMD to the wave response of the single plie platform can be obtained. Then the influence of the TMD's parameters (such as frequency, damping, mass, etc.) on the control effect is also discussed through a calculation sample. The calculation results indicate that when the frequency ration of the TMD to the single plie platform is close to 1.0, the control effect is the best. But the influence of the damping ratio and mass ratio of the TMD to the single pile platform on the control effect is not so evident. Therefore, when the TMD's parameters are chosen correctly, the wave response of the single plie platform can be controlled effectively.