畸形波作用下张力腿平台的瞬时响应  

Transient response of TLP under freak waves

作　　者：肖鑫[1,2] 滕斌[1] 勾莹 宁德志[1] 

机构地区：[1]大连理工大学土木水利学院海岸和近海工程国家重点实验室,辽宁大连116024 [2]中交水运规划设计院有限公司,北京100007

出　　处：《水运工程》2009年第5期9-14,共6页Port & Waterway Engineering

基　　金：863课题研究项目(2006AA09A109-3);国家自然科学基金项目(10772040)

摘　　要：应用Tromas等(1991)提出的新波理论的概念,建立了极限入射波浪模型,并把该模型引入到极限波浪与平台互相作用的水动力计算中。研究中应用大连理工大学海岸及近海工程实验室开发的频域波浪力分析程序WAFDUT1.4,得到结构的波浪力传递函数和水动力系数。通过平台运动方程在时域内计算得到运动响应和张力腿受力。最后,进一步研究了张力腿平台的刚度系数和波浪周期的改变对张力腿平台的运动响应和张力腿受力的影响。Applying the New Wave theory put forward by Tromas and others, we established the extreme incident wave model, which was introduced into the calculation of hydrodynamic force. WAFDUTI.4 developed by the State Key Laboratory of Coastal and Offshore Engineering of Dalian University of Technology is used to calculate the wave force transfer function and the hydrodynamic coefficients. The displacement and the tether tension are obtained by solving the motion equation of TLP in the time domain. Finally, the influence due to the changes of the wave period and the stiffness of TLP tethers are calculated and discussed respectively.

关 键 词：瞬时响应 张力腿平台 畸形波 

分 类 号：P75[天文地球—海洋科学]