水下浮动锚索—平台结构耦合非线性参数振动研究  

Study on nonlinear parametric vibration of floating cable-platform coupled underwater systems

作　　者：苏波[1] 张序彦 于国军[1] SU Bo;ZHANG Xuyan;YU Guojun(Faculty of Civil Engineering and Mechanics,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]江苏大学土木工程与力学学院,镇江212013

出　　处：《江苏科技大学学报（自然科学版）》2018年第3期315-324,共10页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：国家自然科学青年基金资助项目(51108210;51508237);江苏省博士后基金资助项目(1301048C);江苏省自然科学青年基金资助项目(BK20140560);江苏大学青年扶持基金资助项目(5621480001)

摘　　要：在VIVACE潮流能发电系统基础上,提出并设计了浮动式潮流能发电系统F-VIVACE的锚索—平台结构,建立了考虑参数振动的锚索—平台耦合振动分析模型.通过数值计算,分析了附连水惯性力、水阻尼力、锚索初始张力、锚索和平台的不同初始扰动以及不同阻尼对于锚索参数振动的影响.结果表明:水阻尼力、锚索初始张力、平台的初始扰动以及阻尼对锚索振幅影响较大,附连水惯性力、锚索的初始扰动对其影响较小.进一步,将调频质块阻尼器应用于锚索参数振动控制,经计算取得了较好的减振效果.Based on the VIVACE（ vortex induced vibration aquatic clean energy） converter system,an F-VIVACE（ floating vortex induced vibration aquatic clean energy） converter system is put forward and designed and then the coupled vibration model of cable-platform considering parameter vibration is established. The influences of inertia force of water,the damping force of water,the initial tension of cable,the initial disturbance of cable and platform on the vibration are analyzed by numerical method. The results show that the damping force of water,the initial tension of cable,the initial disturbance of platform and the damping of the platform have a great impact on the amplitude of cable. The influence of inertia force of the water,the initial disturbance of the amplitude is insignificant. Furthermore,the tuned mass damper is applied to the vibration control of the cable and good effect according to calculations is obtained.

关 键 词：锚索 参数振动 调频质块阻尼器 牛顿定律 数值计算 

分 类 号：O323[理学—一般力学与力学基础]