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研究生:許伯彰
研究生(外文):Po-Chang Hsu
論文名稱:波浪中具岸壁效應之船體時程運動模擬
論文名稱(外文):The Time Domain Motion Simulation for the Ship in Wave with Bank Effect
指導教授:楊澤民楊澤民引用關係方銘川方銘川引用關係
指導教授(外文):Joe-Ming YangMing-Chung Fang
學位類別:碩士
校院名稱:國立成功大學
系所名稱:系統及船舶機電工程學系碩博士班
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2009
畢業學年度:97
語文別:中文
論文頁數:139
中文關鍵詞:岸壁效應
外文關鍵詞:bank effect
相關次數:
  • 被引用被引用:2
  • 點閱點閱:122
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  • 收藏至我的研究室書目清單書目收藏:0
本研究是以流體動力之數學模式來模擬船舶在波浪中具岸壁效應的
運動,程式中將船舶視為細長體並運用了二維截片理論來計算。一般船舶運動之模擬是在頻率域中且無岸壁效應,然而當船舶繫於碼頭邊時岸壁效應的影響是相當重要的,而風力、洋流、波浪和繫纜力…等都將影響船舶運動。為了瞭解在這些情況下船舶的反應,時間域的船舶模擬分析是有必要的。此處岸壁效應是利用類似於雙體船的影像法來模擬,並以四階Runge-Kutta法來計算時間域中的船舶運動。船舶與岸壁間不同的間隙大小與幾種不同海況下之情形將被考慮。此研究可提供船舶停靠碼頭時其繫纜系統之配置設計。
In this study, a hydrodynamic mathematical model for simulating the ship motion in waves with the bank effect is presented. The two-dimensional method and the strip theory are applied on the calculations. Usually the ship motion simulations are done without bank effect in frequency domain. However the bank effect is important and significant while the ship is mooring near the quay or wharf. The ship motions will be affected by wind, current, waves, and the mooring force, etc. In order to understand the ship behaviors under such circumstance, the time domain simulation for ship motions is necessary. The bank effects are treated by using the image method which is similar to the treatments of the twin hull ship. The time domain simulation is made using the 4th order Rung-Kutta method. Several sea states will be considered with respect to different clearances between the ship and bank. The present studies will be helpful for the design on the mooring system arrangement of the ship near the quay or
wharf.
摘要 ………………………………………………………………… I
ABSTRACT ……………………………………………………………II
誌謝 …………………………………………………………………III
表目錄 ………………………………………………………………V
圖目錄 ………………………………………………………………V
符號說明 ……………………………………………………………XI
第一章 緒論…………………………………………………………1
1-1研究背景及動機……………………………………1
1-2文獻回顧…………………………………………………2
1-3論文架構…………………………………………………3
第二章船體動態數學模式 ……………………………………………4
2-1座標系統…………………………………………………4
2-2 船體運動方程式………………………………………5
2-2-1船體運動方程式……………………………5
2-2-2岸壁效應之影響……………………………6
2-3Froude-Krylov力 ……………………………………15
2-4繞射力…………………………………………………16
2-5 風力 …………………………………………………17
2-6洋流力…………………………………………………18
2-7波浪漂流力……………………………………………20
第三章 繫纜系統與防舷材之模擬…………………………………21
3-1繫纜的配置與計算方式………………………………21
3-2防舷材的模擬…………………………………………25
第四章 計算結果與討論………………………………………28
4-1試驗船型………………………………………………28
4-2只考慮波浪力的情況下船舶運動情形………………28
4-3不同波高對船體運動之影響…………………………33
4-4加入風力後之影響……………………………………36
4-5加入洋流力之影響……………………………………40
4-6繫纜船舶之運動分析…………………………………44
第五章 結論與展望…………………………………………………128
參考文獻 ……………………………………………………………130
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