Effectiveness of tuned heave plate inerter(THPI)to control heave motion of offshore semi-submersible platform(SSP)

摘要：

　　Inerter is a device that can produce an apparent mass that is much larger than its physical mass through the amplifying mechanism by translating the linear motion into high-speed rotational motion.Therefore,the same level of vibration suppression might be achieved by using an inerter-based device with a much smaller(physical)mass.This paper carries out analytical studies on the effectiveness of using inerter-based tuned heave plate to suppress the heave motion of semi-submersible platform(SSP)when it is subjected to the sea wave loading.The mean square heave motions of the SSP without control and controlled by the fixed heave plate(FHP),tuned heave plate(THP)and tuned heave plate inerter(THPI)are stochastically formulated,the optimal design parameters for THP and THPI are derived,and the control effectiveness are compared and discussed.The analytical results show that the THPI is more effective to mitigate the heave motion of SSP compared to the conventional methods.

关键词： SSP Heave motion suppression FHP THP THPI

作者: Kaiming Bi Ruisheng Ma Hong Hao

作者单位: Centre for Infrastructure Monitoring and Protection,School of Civil and Mechanical Engineering,Curti Centre for Infrastructure Monitoring and Protection,School of Civil and Mechanical Engineering,Curti

会议类型: 国际会议

会议名称: The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)

会议地点: 青岛

会议语种:英文

页码: 113-121

在线出版日期: 2018-07-22（万方平台首次上网日期，不代表论文的发表时间）