頁籤選單縮合
題名 | 高速船舶在波浪中行進時之垂向運動性能=Vertical Motions of High Speed Ships in Waves |
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作者 | 汪群從; 邱逢琛; 洪憲忠; | 書刊名 | 中國造船暨輪機工程學刊 |
卷期 | 16:3 1997.08[民86.08] |
頁次 | 頁57-66 |
分類號 | 444.7 |
關鍵詞 | 運動; 波浪激振力; 行進速度; Motion; Wave exciting force; Forward speed; |
語文 | 中文(Chinese) |
中文摘要 | 本文利用Chapman二維半的概念,介紹探討高速細長船體在波浪中行進時垂向運動性能的方法。控制方程式沿著特徵線推導。自由液面以及船體表面之前進速度效應皆加以考慮。有限計算範圍之開放邊界以Yamasaki & Fujino的散射條件處理。 一艘高速漁船在波浪中以F□=0.6行進時,計算所得波浪激振力與垂向運動性能,與Takaki & Iwashita的實驗數據比較,相當符合。計算所得波浪激振力以及垂向運動性能也與截片法以及其他三維方法等計算值比較。 |
英文摘要 | Based on Chapman's approach, vertical motions of slender ships with forward speed are solved by a two and half dimensional method. The governing equations are derived along characteristic lines. The forward speed effects are incorporated into the free surface and the body surface conditions. Relaxed radiation condition with numerical correcting term introduced by Yamasaki & Fujino is imposed on the open boundary. Vertical motions of a high speed fishing boat with forward speed are calculated. The agreement between the wave exciting forces and motion amplitudes computed by the present method and the experimental data reported by Takaki & Iwashita is very satisfactory. Wave exciting forces and motion amplitudes computed also compared with the numerical results from the strip theory and some three dimensional approaches. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。