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題名 | 水中繫留平板消波特性及運動行為=Characteristics of Wave Dissipation and Motion Due to a Submerged Anchor Plate |
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作者姓名(中文) | 周宗仁; 陳明宗; 黃一平; | 書刊名 | 中國土木水利工程學刊 |
卷期 | 9:3 1997.09[民86.09] |
頁次 | 頁525-531 |
分類號 | 443.1 |
關鍵詞 | 水中繫留平板; 微小振幅波; 簡諧運動; 邊界元素法; Submerged anchor plate; Small amplitude wave; Harmonic motion; Boundary element method; |
語文 | 中文(Chinese) |
中文摘要 | 本文旨在微小振幅波理論範圍下,以邊界元素法為數值計算方法,探討水中繫留平板受規 則波作用時所引起的消波特性及運動行為。理論推導時,假設繫留平板受波浪作用所引起的運動為 一微小且與波浪同週期的簡諧運動,藉以推導繫留平板運動時一階運動邊界條件。計算結果發現繫 留平板受平板寬度、沒水深度、繫留索繫留角度及彈性係數皆會影響消波效果。在部份範圍之週期 波,繫留平板運動振幅之增加有效反射入射波,使波浪透過率減低達到消波效果。 |
英文摘要 | This study is to investigate wave energy dissipation and motion behavior of a submerged anchor plate using the small amplitude wave theory under the regular wave condition. The boundary element method is employed to solve the problem. The submerged anchor plate motion generated by the periodic wave is assumed to be small and harmonic with the incident wave. The first-order kinematics boundary condition of the motion of the submerged anchor plate is then derived. The wave dissipation is affected by the width and the submerged depth of plate, the elastic coefficient and the angle of the anchor chain. In a certain region of the periodic wave, the amplitude generated by the motion of the submerged anchor plate increases the effective reflection of the incident wave and decreases the values of the coefficient of transmission. |
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