• 作者： 湯麟武; 楊春生; 高家俊
• 作者服務機構： 國立成功大學水利工程系
• 中文摘要： 本篇乃研究樁柱結構物受不規則波力作用之反應，利用能譜及數值模擬法，計算解釋結構物受波力作用後之反應現象。配合模型試驗探討理論分析之可行性，並解決一些理論上不易求得之參係數。結構物分單柱及多柱之工作臺結構，分別理論分析及計算。結構物之動力分析，以能量法化為單一自由度系統，以蒙地卡羅法模擬不規則外力，依三次多項式近似解，求其動力反應，結果比實驗值偏高，合乎理論推測。配合靜力分析，及海洋波浪資料之收集及分析，可以解決海洋結構物之設計問題。實驗及計算雖然繁雜，成果卻非常滿意。應可進一步做海上現場之模型實驗及理論分析。
• 英文摘要： The dynamic response of pile structures,under the action of random gravity wave, hasbeen analyzed by wave simulation methodcoupling with experimental researches in thispaper. A mathematical model is developed forthe wave-structure system, in which the vibratingstructure is treated as an one-degree-of-freedomvibrator. A time series model is developed andthe wave simulation technique is applied togive a time series data of wave forces on piles.The displacement of the platform is calculatedstep by step for the irregular wave train simu-lated from the spectrum of the experimentalwave data. The results of computation withvarious parameters are shown and are comparedwith those obtained from the experimental data.The characteristics of the response of platformdisplacement calculated by the wave simulationmethod can be estimated easily by using energyconcept and statistical method.
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