本研究擬以MATLAB/SIMULINK為基礎，建構一套用以推估浮動式風機平台動態反應的模組化模擬系統。本系統主要包含以線性勢能流論為基礎的邊界元素法求解器，及以康明斯時域方程式為基礎的流體動力模擬器，並搭配可視化軟體ParaView進行波浪與風機浮台之交互作用。在本論文中將比較幾種典型的浮式風機平台在波浪作用下的動態反應，及其受準靜態錨鍊系統的影響程度。根據不同剛度矩陣的設定，可用來探討在規則或不規則波海況下三種不同型式錨鍊系統的動態特性。經由反應振幅因子的分析可得知各型式風機浮台所對應的自然頻率，及確保所設計風機的安全性與穩定性。

This thesis is study of the motion responses of a floating platform in waves based on a modular design system, comprising a hydrodynamic simulator, Matlab Simulink and ParaView. Both radiation and diffraction methods are used to obtain the hydrodynamic forces from a frequency-domain boundary element Method (BEM) solver. In order to simulate the system dynamics of a TLP (tesion-leg plaform), spar, barge and a semi- submersible floating platform, the Cummins time-domain equation is adopted by solving the governing equations for 3 degrees-of-freedom (DOF) motions, including surge, heave, and pitch. Finally, Paraview are used to visualizations to analyze their data. In addition, an indicator, a response amplitude operator (RAO), is considered to determine the resonance period of the floating platforms by performing regular wave and irregular wave simulations at various frequencies. Since the RAO peak corresponds to the resonance period of the floating platform, it would be considered the most influential a predominant parameter related to the safety and stability designs, and it can be used to estimate the floating platform’s response to waves in the case of a mooring system. Subsequently, the results present that a quasi-static mooring system is applicable for the estimation of mooring forces as well as for determining the restrictions for floating platforms in terms of motion responses. By comparing our model results with other published results for floating platforms, it is verified that the calculation of motion responses is reliable. Eventually, this study will provide a modular calculation process and help determine the hydrodynamic characteristics of wind floating wind platforms in engineering practice.

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