本文主旨為利用試驗研究規則波通過浮式彈性結構物之波浪變化特性。試驗於國立成功大學水工試驗所進行，試驗主要分析中間性水深之規則波在不同的波浪尖銳度和其他不同的波浪條件下，通過彈性結構物後之反射係數、透射係數以及能量損失係數等特性來判斷結構物消波減浪的消能效果。其中波浪條件的改變包含了波高、水深、週期以及構件長度和入射波波長比的不同。此外，本試驗亦探討不同的彈性構件以及不同的構件固定方式之間的消能效果比較以及運動特性之差異。
根據試驗分析結果，波浪尖銳度的影響和前人文獻分析結果相似，尖銳度增加則透射係數減少，整體能量損失增加。而波高造成的差異，在入射波長較長時，並無明顯差別。入射波長較短時，則波高較小的波浪其能量損失較多。接著為構件長度和入射波長比的影響，比值越大損失的能量越多，且發現在構件長度大於四倍波長後，其構件常和入射波長比值的對整體的影響比波浪條件更甚。至於不同水深則因本試驗大部分皆位於中間性水深，故無明顯之差異。最後並由試驗得知兩端固定的擺設方式效果優於構件未固定以及僅前端固定的方式。以及三種構件之中，剛性構件反射係數遠大於其他兩種構件，透射係數則三者相近。而整體比較之下，彈性較佳的構件消能的效果良好，損失係數達0.9左右且明顯優於其他兩種浮式構件。

The main objective of this study is to experimentally investigate the characteristic of regular wave passing through the elastic plate. Experiment conducted in the tank of Hydraulics Laboratory NCKU. The experiment conducted in different wave condition, different rigid type of plate and different elastic covers. Then measured the main characteristics of wave propagation: reflection, transmission and energy loss coefficient to analyze or investigate the effect of elastic structure.
According to our analyses, the effect by wave steepness is similar to the literature. When Wave steepness increase, then the transmission coefficient decrease, energy loss increase. The difference by changed wave height are not obvious. And when the ratio of structure length to incident wave length increase, the energy loss increase too. We also find out the ratio affect more than the wave condition when the ratio value is bigger than four. As for the effect of water depth is not so clear, it is because all the wave condition in this experiment conducted in middle-water depth. Last, in the different elastic covers, the rigidity cover’s reflection coefficient is much higher than others, and the latex cover’s energy reducing is the best of the experiment.

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