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博碩士論文 etd-0825105-122701 詳細資訊
Title page for etd-0825105-122701
論文名稱
Title
固樁式浮碼頭之動力行為分析
Dynamic Analysis on floating pier of landing stage
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
95
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2005-07-27
繳交日期
Date of Submission
2005-08-25
關鍵字
Keywords
動力分析、浮碼頭、鋼管樁
pile, dynamic analysis, floating pier
統計
Statistics
本論文已被瀏覽 5692 次,被下載 1470
The thesis/dissertation has been browsed 5692 times, has been downloaded 1470 times.
中文摘要
本研究考慮一矩形不透水單浮箱和剛性樑所組成之二維浮碼頭,此二維浮碼頭由鋼管固定樁所固定,受一週期性波浪作用下,對浮箱與波浪間的交互作用兼且受到鋼管樁束制效應下,提出線性化之理論解析解。文中考慮在二維波浪場中,在邊界條件線性化後,將入射波與浮式結構物互相作用問題分為散射問題與單位振幅結構物運動之輻射問題,以分離變數法解析,並延續Lee(1995)針對浮體結構物下非齊性之邊界條件分成兩邊界條件,以求取輻射問題之單位垂直與旋轉振幅波浪勢函數。以波浪勢函數求取結構物之外力,並配合結構物運動方程式求解運動振幅,便可得到浮碼頭與波浪作用後流場解析解。最後利用有限元素法模擬出鋼管樁受浮箱與入射波浪作用後的動力行為分析。
Abstract
In this thesis, two-dimensional floating pier consists of single rectangular impermeable pontoon and rigid beam is studied. The purpose of this study is to present a theoretical solution for linearlized problem of incident waves acting on a floating pier with pile-restrained. All boundary conditions are linearlized in the problem which is separated into a scattering problem and radiation problem with unit motion amplitude. The method of separation of variables is used to solve for velocity potentials. For the radiation problem with unit heave and rotate amplitude, the boundary value problem with nonhomogeneous boundary condition beneath the structure is solved by using a solution procedure proposed by Lee(1995). By calculating wave force from velocity potential, and equations of motion of the floating structure, an analytic solution for the problem is developed. At last, using finite element method to calculate the dynamic analysis on the pile acting by the pontoon and incident waves.
目次 Table of Contents
中文摘要
英文摘要
致謝
目錄………………………………………………………………………………I
圖目錄…………………………………………………………………………..III
表目錄…………………………………………………………………………...V
符號說明……………………………………………………………………….VI

第一章 導論……………….……………………………………………….……1
1-1 前言........................................................................................................1
1-2 文獻回顧................................................................................................2
1-3 研究方法................................................................................................3
1-4 本文架構................................................................................................4

第二章 流場理論解析……………....……….…………………………………6
2-1 問題描述與基本假設............................................................................6
2-2 邊界值問題………................................................................................8
2-2-1 散射問題……..................................................................................8
2-2-2 單位水平振幅輻射問題................................................................12
2-2-3 單位垂直振幅輻射問題................................................................15
2-2-4 單位旋轉振幅輻射問題................................................................19
2-3 浮體運動方程式...................................................................................23

第三章 浮體結構物運動方程式………………..……………………....……32
3-1 鋼管樁束制力......................................................................................32
3-2 結構物運動方程式………………………………………………..…33
第四章 鋼管樁結構之動力分析……...………………………………….…..41
4-1 鋼管樁之運動方程式……………………………………………..…41
4-2 桿件勁度矩陣………………………………………………….…….41
4-3 桿件質量矩陣…………………………………………….………….43
4-4 外力項的計算………………………………………………….…….44
第五章 計算結果與討論…………………………………………….……….46
5-1 流場解析解的收斂性……………………………………….……….46
5-2 考慮結構物吃水深對流場與結構物運動的影響..............................47
5-3 考慮結構物寬度對流場與結構物運動的影響..................................47
5-4 鋼管樁材料性質(撓曲剛度EI)對流場與結構物運動的影響..........48
5-5 鋼管樁之運動行為..............................................................................48

第六章 結論與建議……………………………………………………………65
參考文獻..............................................................................................................67
附錄A 參數定義................................................................................................69
附錄B 單位垂直振幅II區勢能.........................................................................70
附錄C 單位旋轉振幅II區勢能……………….................................................75
附錄D 鋼管樁束制係數 ................................................................................80
參考文獻 References
1. Black, J,L. and Mei, C.C., “Scattering of surface waves by rectangular obstacles in water of finite depth,” Journal of Fluid Mechanics, Vol. 38, Part.3, pp. 499-511, 1969.

2. Black, J,L., Bray, M.C.G. and Mei, C.C, “Radiation and scattering of water waves by rigid bodies,” Journal of Fluid Mechanics, Vol. 46, Part.1, pp. 151-164, 1971.

3. Ijima, T., Tabuchi, Y. and Yumura, Y., “Scattering of surface waves and the motions of a rectangular body by waves in finite water depth,” Proceddings of Japan Society of Civil Engineers, No.202, pp.33-48, June, 1972.

4. Ijima, T., Yamamoto, T. and Yoshida, A., “Dynamics of elastically moored floatinf objects,” Applied Ocean Research, Vol. 2, NO. 2, pp. 85-92, 1980.

5. Lee, C.P. and Lee, J.F., “Wave-induced surge motion of a tension leg structure,” Ocean Engineering, Vol. 20, No. 2, pp.171-186, 1993.

6. Lee, H.H. and Wang, P.W., “Analytical solution on the surge motion of tension-leg twin platform structural systems,” Ocean Engineering, Vol. 27, No. 4, pp.393-415, 2000.

7. Lee, J.F., “On the heave radiation of rectangular structure,” Ocean Engineering, Vol. 22, No. 1, pp. 19-34, 1995.

8. Mei, C.C., “The applied dynamics of ocean surface waves,” John Wiley& Sons, Inc., New York, 1983.

9. Reddy,J.N., “An introduction to the finite element method,”pp.143-198,1993.

10. Sarpakaya, T. and Isaacson, M., “Mechanics of wave forces on offshore structures,” Van Nostrand Reihold Co., 1981.

11. 王佩文, 繫纜式浮體結構在波浪作用下之動力行為分析, 國立中山大學海洋環境及工程學系碩士班碩士論文,1997。

12. 李兆芳,海洋結構物波力計算,海岸工程學,295頁-323頁,2001。

13. 游家瑞, 波場與可變形浮提交互作用之研究, 國立中山大學海洋環境及工程學系碩士班碩士論文,1999。

14. 錢中弘, 浮碼頭的運動行為分析, 國立海洋大學河海工程學系碩士班碩士論文,1999。

15. 賴宏儒, 浮棧橋式碼頭運動特性之實驗研究, 國立海洋大學河海工程學系碩士班碩士論文,1999。
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