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Influence of wave approach angle on TLP's response

机译：进波角度对TLP响应的影响

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The current study focuses on the response analysis of triangular tension leg platform (TLP) for different wave approach angles varying from 0° through 90° and its influence on the coupled dynamic response of triangular TLPs. Hydrodynamic loading is modeled using Stokes fifth-order nonlinear wave theory along with various other nonlinearities arising caused by change in tether tension and change in buoyancy caused by set down effect. Low frequency surge oscillations and high frequency tension oscillations of tethers are ignored in the analysis. Results show that wave approach angle influences the coupled dynamic response of triangular TLP in all degrees of freedom except heave. Response in roll and sway degrees of freedom are activated which otherwise are not present in TLP's response to unidirectional waves. Pitch and roll responses are highly stochastic in nature indicating high degree of randomness. Variation in surge, sway and heave responses are nonlinear and are not proportional to change in wave height for the same period.
机译：当前的研究集中在三角张紧腿平台（TLP）对从0°到90°变化的不同波进近角的响应分析及其对三角TLP耦合动力响应的影响。使用Stokes五阶非线性波理论以及由系绳张力变化和下沉效应引起的浮力变化引起的其他各种非线性，对流体动力载荷进行建模。在分析中忽略了系绳的低频电涌振荡和高频张力振荡。结果表明，波浪起伏角在除垂度以外的所有自由度上都会影响三角形TLP的耦合动力响应。 TLP对单向波的响应中不存在侧倾和摇摆自由度响应。俯仰和横滚响应本质上是高度随机的，指示高度随机性。波动，摇摆和升沉响应的变化是非线性的，并且与同一时期的波高变化不成比例。

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