WAVE INTERACTION WITH TENSION LEG PLATFORMS
WAVE INTERACTION WITH TENSION LEG PLATFORMS
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DOI：
10.1016/0029-8018(92)90045-6
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发表时间：
1992
影响因子：
5
通讯作者：
J. Niedzwecki;J. R. Huston
中科院分区：
文献类型：
--
作者：
J. Niedzwecki;J. R. Huston
深水海洋平台的设计需要对波浪-结构相互作用现象进行分析，而对于浅水平台的设计来说，波浪-结构相互作用现象并不那么重要。对于张力腿平台，垂直腿上的波浪爬高和甲板下的波浪放大等相互作用现象是主要的设计考虑因素。本文报道的研究调查集中在四柱TLP模型上进行的一系列小尺度波浪水槽试验，以检验这些现象。研究了竖向支腿间距的作用以及设置和不设置浮筒的TLP模型的对比试验。当垂直支腿移动得更近时，注意到波浪抬高的增加和与最大波浪上升流相对应的入射波周期的移动。给出了与以前实验研究中的单圆柱体的波浪测量结果以及本研究中使用的TLP构型的比较。在此基础上，提出了TLP上波浪爬升的设计计算公式。介绍了在一条腿上直接跟随另一条腿的波浪助跑。讨论了波浪上升流测量结果与以前发表的数值结果的比较。提出了一个波浪上升力模型，该模型考虑了试验获得的波浪上升力测量，并结合平台甲板标高设计规范进行了讨论。
The design of deep water offshore platforms requires the analysis of wave-structure interaction phenomena which have not been as critical for shallower water platform designs. In the case of tension leg platforms (TLPs) interaction phenomena such as wave run-up on the vertical legs and the amplification of the waves beneath the deck are major design considerations. The research investigation reported here focuses on a series of small scale wave tank tests on four column TLP models examining these phenomena. The role of vertical leg spacing and comparative tests of the TLP models with and without pontoons was investigated. As the vertical legs were moved closer an increase in wave run-up and a shifting of the incident wave period corresponding to the maximum wave upwelling were noted. Comparisons with wave measurements for single cylinders from previous experimental studies and the TLP configurations used in this study are presented. A design formula for estimating wave run-up on TLPs is suggested based upon these experiments. The wave run-up on a leg directly in the wake of another leg is presented. A comparison of the wave upwelling measurements with previously published numerical results are discussed. A wave uplift force model which allows for the inclusion of the experimentally obtained wave upwelling measurements is presented and discussed with regard to the design specification of platform deck elevation.