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博碩士論文 etd-0907104-130355 詳細資訊
Title page for etd-0907104-130355
論文名稱
Title
大型浮式海域平台受波浪作用之動力行為減振研究
The Dynamic Performance Improvement and Vibration Suppression with Turned Liquid Column Dampers to the Tension Leg Platform
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
138
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
2004-07-28
繳交日期
Date of Submission
2004-09-07
關鍵字
Keywords
浮體結構物、液柱阻尼器
TLCD, LCVA
統計
Statistics
本論文已被瀏覽 5743 次,被下載 1725
The thesis/dissertation has been browsed 5743 times, has been downloaded 1725 times.
中文摘要
繫纜式浮體結構物目前以廣泛的應用於海洋結構物上,如海上鑽油平台、浮式機場、浮式防波堤等。海上平台的使用除了安全性的考量外,最重要的是穩定性與舒適性,也就是降低波浪衝擊作用下所產生的搖晃與振動。從過去的研究中發現,當結構物附加諧調液柱阻尼器(Turned Liquid Column Damper, TLCD)後確實有減振的效果存在。
本研究將繫纜式浮體結構物的浮筒部分改裝成TLCD,其優點有:1.不改變浮台主體結構,保有提供浮力之功能;2.TLCD內裝填液體後,利用液體的振盪吸收或消散能量;3.利用裝填液柱長度有限度改變整體結構物之自然頻率,以達最佳消能功用。本文以理論為基礎下,設計水工模型來模擬結構物在有無附加TLCD下的減振消能效果,分別擷取結構物surge、heave與pitch三個方向之加速度值與纜繩張力值,作為實驗數據比較。
由實驗過程中可發現,結構物附加TLCD後,大致來看都能夠有效的降低三個方向之反應。因此如何找出各種情況下的最佳減振消能設計為本文所討論重點。
Abstract
In this study, a tension leg platform (TLP) incorporated with the TLCD (Tuned liquid column damper) is tested experimentally. The advantages of TLP with TLCD devices are as follows:1.When the TLCD devices use on the TLP, the columns under the platform could provide the buoyant force. 2. When the TLCD devices are injected into water, the vibration of the platform could be mitigated by the water sloshing power. 3. It can change the natural frequency within limits by changing the liquid length.
In this thesis, a scaled-down model is tested in the laboratory to verify the analytical results. When the experiment tested, the total mass of the system should be the same no matter if the TLCD devices are applied or not. We used the accelerometers to obtained the acceleration of the platform including the surge, heave and pitch motions. The tendon force is obtained by the strain gage.
Can be found from the experiment course, after the structure adds the TLCD devices, the responses of three motion can be effective reduced. So what reducing shaking to disappear and can be designed and discussed best by this text under various kinds of situations of finding out.
目次 Table of Contents
目錄
中文摘要
英文摘要
目錄 Ⅰ
圖目錄 Ⅳ
表目錄 ⅩⅡ
照片 ⅩⅢ
符號說明 ⅩⅣ
第一章 序論 1
1.1 研究目的 1
1.2 研究背景 1
1.3 文獻回顧 2
1.3.1繫纜式浮體結構物 2
1.3.2諧調液柱阻尼器 3
1.4 本文架構 4
第二章 浮體結構物運動理論解析 6
2.1 浮體裝置TLCD之運動方程式 6
2.2 一般浮體結構物外力解析 10
2.3 結構物附加TLCD後之外力項計算與複數頻率反應函數 12
2.4 結構附加TLCD後之波浪作用力頻譜及反應頻譜 14
第三章 水工模型實驗設計 19
3.1 實驗儀器及設備 19
3.2 模型設計 20
3.2.1相似理論與模型縮尺 20
3.2.2 實驗模型製作 21
3.2.3 繫纜繩彈性係數測試 22
3.3 實驗波浪條件 23
3.4 實驗計畫與結構附加TLCD條件 23
3.4.1試驗波浪週期固定、波高固定、液柱長度改變之比較 23
3.4.2液柱長度固定、波高固定、試驗波浪週期改變之比較 24
3.4.3試驗波浪週期固定、液柱長度固定、波高改變之比較 24
3.5 實驗數據分析 24
3.6 實驗步驟 25
3.6.1 電阻應變計之黏貼與率定工作 25
3.6.2 結構體運動之量測 26
3.6.3 注意事項 26
第四章 實驗結果與數值模擬討論 33
4.1 實驗結果與討論 33
4.1.1 試驗波浪週期固定、波高固定、液柱長度改變 33
4.1.2 液柱長度固定、波高固定、試驗波浪週期改變 36
4.1.3 試驗週期固定、液柱長度固定、波高改變 38
4.2 實驗結果與數值模擬之討論 40
4.2.1 數值模擬條件之給定 40
4.2.2實驗值與理論值之比較 40
4.2.3實驗值與理論值之差異探討 41
第五章 綜合結論與建議 115
5.1 結論 115
5.2 建議 116
參考文獻 118
附錄A 123
附錄B 129
附錄C 131
附錄D 135



圖目錄
圖2.1 諧調液柱阻尼器(TLCD)細部構造圖 17
圖2.2 繫纜式浮體結構物示意圖 17
圖2.3繫纜式浮體結構物在六個自由度上的位移示意圖 18
圖3.1 實驗水槽佈置圖 27
圖3.2 實驗模型設計圖(前視) 27
圖3.3實驗模型設計圖(側視) 27
圖3.4實驗模型設計圖(俯視) 28
圖3.5 TLCD水平管徑5.6公分之細部圖 28
圖3.6 TLCD水平管徑8.4公分之細部圖 28
圖3.7 棉繩之應力--應變圖 29
圖3.8 應變計之電壓—張力關係式圖 29
圖4.1 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=55 cm,有無裝設TLCD之位移與頻譜的比較 45
圖4.2 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=60 cm,有無裝設TLCD之位移與頻譜的比較 46
圖4.3 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=65 cm,有無裝設TLCD之位移與頻譜的比較 47
圖4.4 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=70 cm,有無裝設TLCD之位移與頻譜的比較 48
圖4.5 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=75 cm,有無裝設TLCD之位移與頻譜的比較 49
圖4.6 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=80 cm,有無裝設TLCD之位移與頻譜的比較 50

圖4.7 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=85 cm,有無裝設TLCD之位移與頻譜的比較 51
圖4.8 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=90 cm,有無裝設TLCD之位移與頻譜的比較 52
圖4.9 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=95 cm,有無裝設TLCD之位移與頻譜的比較 53
圖4.10 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=100 cm,有無裝設TLCD之位移與頻譜的比較 54
圖4.11 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=105 cm,有無裝設TLCD之位移與頻譜的比較 55
圖4.12 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=110 cm,有無裝設TLCD之位移與頻譜的比較 56
圖4.13 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5sec, H=6cm, Ld=55cm,有無裝設TLCD之位移與頻譜的比較 57
圖4.14 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5sec, H=6cm, Ld=60cm,有無裝設TLCD之位移與頻譜的比較 58
圖4.15 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5sec, H=6cm, Ld=65cm,有無裝設TLCD之位移與頻譜的比較 59
圖4.16 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5sec, H=6cm, Ld=70cm,有無裝設TLCD之位移與頻譜的比較 60
圖4.17 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5sec, H=6cm, Ld=75cm,有無裝設TLCD之位移與頻譜的比較 61
圖4.18 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5sec, H=6cm, Ld=80cm,有無裝設TLCD之位移與頻譜的比較 62
圖4.19 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5sec, H=6cm, Ld=85cm,有無裝設TLCD之位移與頻譜的比較 63
圖4.20 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5sec, H=6cm, Ld=90cm,有無裝設TLCD之位移與頻譜的比較 64
圖4.21 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm,有無裝設TLCD之最大頻譜反應值比較 65
圖4.22 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5sec, H=6cm,有無裝設TLCD之最大頻譜反應值比較 66
圖4.23 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm,有無裝設TLCD之振幅降低率 67
圖4.24 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5sec, H=6cm,有無裝設TLCD之振幅降低率 68
圖4.25 confining piping ψ=5.6 cm, orifice=1, T=1.5sec, H=6cm,有無裝設TLCD之減振消能比 69
圖4.26 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5sec, H=6cm,有無裝設TLCD之減振消能比 69
圖4.27 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=55 ~70 cm, time=40~50sec,有無裝設TLCD之錨碇拉力比較 70
圖4.28 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=75 ~90 cm, time=40~50sec,有無裝設TLCD之錨碇拉力比較 70
圖4.29 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=95 ~110 cm, time=40~50sec,有無裝設TLCD之錨碇拉力比較 71
圖4.30 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=55 ~60 cm, time=0~50sec,有無裝設TLCD之錨碇拉力比較 71
圖4.31 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=65 ~70 cm, time=0~50sec,有無裝設TLCD之錨碇拉力比較 72
圖4.32 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=75 ~80 cm, time=0~50sec,有無裝設TLCD之錨碇拉力比較 72
圖4.33 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=85 ~90 cm, time=0~50sec,有無裝設TLCD之錨碇拉力比較 73
圖4.34 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=95 ~100 cm, time=0~50sec,有無裝設TLCD之錨碇拉力比較 73
圖4.35 confining piping ψ=5.6 cm, orifice=1, T=1.5 sec, H=6cm, Ld=105 ~110 cm, time=0~50sec,有無裝設TLCD之錨碇拉力比較 74
圖4.36 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5 sec, H=6cm, Ld=55 ~70cm, time=40~50sec,有無裝設TLCD之錨定拉力比較 74
圖4.37 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5 sec, H=6cm, Ld=75 ~90cm, time=40~50sec,有無裝設TLCD之錨定拉力比較 75
圖4.38 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5 sec, H=6cm, Ld=55 ~60cm, time=0~50sec,有無裝設TLCD之錨定拉力比較 75
圖4.39 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5 sec, H=6cm, Ld=65 ~70cm, time=0~50sec,有無裝設TLCD之錨定拉力比較 76
圖4.40 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5 sec, H=6cm, Ld=75 ~80cm, time=0~50sec,有無裝設TLCD之錨定拉力比較 76
圖4.41 Bh=8.4cm, orifice opening ψ=5.6cm, T=1.5 sec, H=6cm, Ld=85 ~90cm, time=0~50sec,有無裝設TLCD之錨定拉力比較 77
圖4.42 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm,T=1.2sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 78
圖4.43 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm,T=1.3sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 79
圖4.44 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm,T=1.4sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 80
圖4.45 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm,T=1.5sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 81
圖4.46 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm,T=1.6sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 82
圖4.47 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm,T=1.7sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 83
圖4.48 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,T=1.4sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 84
圖4.49 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,T=1.5sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 85
圖4.50 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,T=1.6sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 86
圖4.51 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,T=1.7sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 87
圖4.52 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,T=1.8sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 88
圖4.53 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,T=1.9sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 89
圖4.54 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,T=2.0sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 90
圖4.55 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm,H=9cm,T=1.2sec~1.7sec,有無裝設TLCD之最大反應 91
圖4.56 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,H=9cm,T=1.4sec~2.0sec,有無裝設TLCD之最大反應 92
圖4.57 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm,H=9cm,T=1.2sec~1.7sec,有無裝設TLCD之振幅降低率 93
圖4.58 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,H=9cm,T=1.4sec~2.0sec,有無裝設TLCD之振幅降低率 94
圖4.59 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm,H=9cm,T=1.2sec~1.7sec,有無裝設TLCD之減振消能比 95
圖4.60 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,H=9cm,T=1.4sec~2.0sec,有無裝設TLCD之減振消能比 95
圖4.61 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm,H=9cm,T=1.2sec與T=1.3sec有無裝設TLCD之錨定拉力比較 96
圖4.62 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm,H=9cm,T=1.4sec與T=1.5sec有無裝設TLCD之錨定拉力比較 96
圖4.63 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm,H=9cm,T=1.6sec與T=1.7sec有無裝設TLCD之錨定拉力比較 97
圖4.64 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,H=9cm,T=1.4sec與T=1.5sec有無裝設TLCD之錨定拉力比較 97
圖4.65 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,H=9cm,T=1.6sec與T=1.7sec有無裝設TLCD之錨定拉力比較 98
圖4.66 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,H=9cm,T=1.8sec與T=1.9sec有無裝設TLCD之錨定拉力比較 98
圖4.67 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,H=9cm,T=2.0sec有無裝設TLCD之錨定拉力比較 99
圖4.68 confining piping Φ=5.6 cm,orifice=1,T=1.9 sec,H=6cm,Ld=110 cm,有無裝設TLCD之位移與頻譜的比較 100
圖4.69 confining piping Φ=5.6 cm,orifice=1,T=1.9 sec,H=9cm,Ld=110 cm,有無裝設TLCD之位移與頻譜的比較 101
圖4.70 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,T=1.7sec,H=6cm,有無裝設TLCD之位移與頻譜的比較 102
圖4.71 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,T=1.7sec,H=9cm,有無裝設TLCD之位移與頻譜的比較 103
圖4.72 confining piping Φ=5.6 cm,orifice=1,T=1.9 sec,Ld=110cm,波高不同下,有無裝設TLCD之振幅降低率 104
圖4.73 Bh=8.4cm, orifice opening ψ=5.6cm,T=1.7sec,Ld=110cm,波高不同下,有無裝設TLCD之振幅降低率 105
圖4.74 confining piping Φ=5.6 cm,orifice=1,T=1.9sec,Ld=110cm,波高不同下,有無裝設TLCD之減振消能比 106
圖4.75 Bh=8.4cm, orifice opening ψ=5.6cm,T=1.7sec,Ld=110cm,波高不同下,有無裝設TLCD之減振消能比 106
圖4.76 confining piping Φ=5.6 cm,orifice=1,T=1.9sec,Ld=110cm,波高不同下,有無裝設TLCD之錨定拉力比較 107
圖4.77 Bh=8.4cm, orifice opening ψ=5.6cm,T=1.7sec,Ld=110cm,波高不同下,有無裝設TLCD之錨定拉力比較 107
圖4.78 2組實驗波浪位移之改變示意圖(週期1.6秒,波高6公分) 108
圖4.79 2組實驗波浪頻譜反應圖(週期1.6秒,波高6公分) 108
圖4.80 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,T=1.6sec, H=9cm,有無裝設TLCD之實驗值與理論值之比較 109
圖4.81 confining piping ψ=5.6 cm,orifice=1,Ld=110cm,T=1.9 sec,H=6cm,有無裝設TLCD之實驗值與理論值之比較 110
圖4.82 confining piping ψ=5.6 cm,orifice=1,T=1.5 sec,H=6cm,液柱長度改變下有無裝設TLCD之實驗值與理論值之最大頻譜反應比較 111
圖4.83 Bh=8.4cm,orifice opening ψ=5.6cm,T=1.5sec, H=6cm,液柱長度改變下有無裝設TLCD之實驗值與理論值之最大頻譜反應比較 112
圖4.84 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm,H=9cm,週期改變下有無裝設TLCD之實驗值與理論值之最大頻譜反應比較 113
圖4.85 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=110cm,H=9cm,週期改變下有無裝設TLCD之實驗值與理論值之最大頻譜反應比較 114
圖A.1 不同形式之頻譜密度與自身關聯性函數
(a) Broad band (b) Narrow band 127
圖A.2 TLCD最佳化設計流程圖 128
圖B.1 TLCD內部液體示意圖 130
圖C.1 由波譜求波浪力頻譜流程圖 134
圖D.1 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm與Ld=80cm,H=9cm,T=1.0sec~1.9sec,有裝設TLCD之最大反應 137
圖D.2 Bh=8.4cm,orifice opening ψ=5.6cm,Ld=90cm與Ld=80cm,H=9cm,T=1.0sec~2.8sec,有裝設TLCD之最大反應 138


表目錄
表4.1 實驗參數表1 43
表4.2 實驗參數表2 44
表4.3 實驗參數表3 44
表D.1 實驗參數表 136


照片
照片3.1 電容式波高計 30
照片3.2 加速規裝設之相關位置 30
照片3.3 動態應變增幅器 31
照片3.4 黏貼於鋼片上之應變計 31
照片3.5 電橋箱 32
照片3.6 結構物附加TLCD之整體模型 32

符號說明
:阻尼器垂直斷面積/水平斷面積之比值
Av:阻尼器垂直斷面積
Ah:阻尼器水平斷面積
:阻尼器中液體密度
Bd:阻尼器水平段長度
:水頭損失係數
Le:阻尼器液柱有效長度
:TLCD管柱內液體流動之位移量
:TLCD管柱內液體流動之速度
:TLCD管柱內液體流動之加速度
:結構物水平方向之加速度
:主結構物之重量
R:主結構物之質量慣性矩
CX:結構物在水平方向之阻尼係數
CY:結構物在垂直方向之阻尼係數
CR:結構物在旋轉方向之阻尼係數
KX:結構物在水平方向之勁度係數
KY:結構物在垂直方向之勁度係數
KR:結構物在旋轉方向之勁度係數
Ld:阻尼器液柱總長度
Ms:外力彎矩(external moment)
Md:回復彎矩(restoring moment)
:預力纜繩對結構系統水平方向造成的等量勁度
:海水密度
g:重力加速度
:圓週率
b:垂直管柱之直徑
At:纜繩之断面積
Lt:纜繩長度
E:纜繩之楊式係數(Young’s modulus)
:平台重心至TLCD底部之距離
d:海水深度
d0:浮體初始吃水深
d1:施加纜繩張力後浮體吃水深
:結構物水平位移時,繫纜繩與垂直線之夾角
:結構物旋轉位移時,繫纜繩與垂直線之夾角
μ:纜繩勁度與結構物增加每單位深度所需浮力的比值
:平台之長度
:平台之寬度
Id:TLCD之慣性矩(moment of inertia)
:阻尼器管柱內液體有效質量
:TLCD等值阻尼係數
:TLCD自然頻率
:TLCD液面位移標準差
:TLCD液面速度標準差
:TLCD勁度係數
:TLCD有效寬長比
mt:阻尼器管柱內液體重量
:拖曳力係數(drag coefficient)
:慣性力係數(inertia coefficient)
:流體運動速度
:流體運動加速度
FT(t):作用在結構物上的總力
:流體在物體垂直方向上的速度
:流體在物體垂直方向上之加速度
:物體在該自由度上之速度
:物體在該自由度上之加速度
:附加質量係數(added mass coefficient)
FWX:波浪作用於圓柱浮筒兩垂直壁面上的水平力
V:體積
M*:附加質量之後結構物重量
Ma:附加重量
:波高
:周波數
:波長
:波浪作用力自身關聯函數
:流體水平速度自身關聯函數
:流體水平加速度自身關聯函數
:水表面上19.5公尺處之風速
:波浪頻譜
:波浪力頻譜
:流體水平速度標準差
:Phillip’s constant
:有效阻尼比
:外力作用到結構物重心距離
:結構物水平位移標準差
:結構物水平方向反應頻譜
:結構物垂直方向反應頻譜
:結構物旋轉方向反應頻譜
:TLCD液面位移複數頻率轉換函數
:結構水平方向複數頻率轉換函數
:結構垂直方向複數頻率轉換函數
:結構旋轉方向複數頻率轉換函數
:液柱內之液體位移頻譜
:液柱內之液體位移頻譜
:最佳化設計液柱長度
:最佳化設計TLCD阻尼係數
:TLCD與浮體結構物之質量比
:TLCD最佳阻尼比
:最佳設計水頭損失係數
:結構物自然頻率
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