Responsive image
博碩士論文 etd-1227102-122543 詳細資訊
Title page for etd-1227102-122543
論文名稱
Title
改良式調諧液柱阻尼器對大型浮式結構物之動力減振研究(含理論及實驗)
The Dynamic Performance Improvement and Vibration Suppression of TLP with Upgraded Tuned Liquid Column Damper
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
125
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
2002-11-04
繳交日期
Date of Submission
2002-12-27
關鍵字
Keywords
液注阻尼器
LCVA, TLCD
統計
Statistics
本論文已被瀏覽 5717 次,被下載 1990
The thesis/dissertation has been browsed 5717 times, has been downloaded 1990 times.
中文摘要
中文摘要
繫纜式浮體結構物已經被廣泛運用於各種海域設施,諸如海域鑽油平台、浮式機場、浮式防波堤及各種大型海上娛樂設施等。外海浮式海域平台的使用除了安全性考量,最重要的是穩定性及舒適性,也就是減緩波浪衝擊下引起的振動及搖晃。基於波浪作用的複雜性及與結構交互作用下不易掌控之互制作用,如何尋求適當的避振措施及方法成為具挑戰的工作。調諧液柱阻尼器(Tuned Liquid Column Damper, TLCD)為應用液體的擺盪能量來平衡或降低主結構物的振動。在過去的研究結果中發現TLCD系統經適當設置後,對於外海浮式平台確實有減振效果,對於共振頻率亦具有調整之功能。
本研究將繫纜式浮體結構物浮筒部分改裝成TLCD,其優點:1.保有提供主浮力之功能,不佔用浮台上部空間,2.TLCD裝填液體時,可利用液體的振盪吸收或消散能量,3.可利用裝填液柱長改變浮筒吃水深。本文以理論為基礎,設計一水工模型實驗,模擬「有無附加TLCD的結構物」在波浪力作用下的反應。實驗過程控制整體的質量控制固定,分別擷取結構物三個方向的加速度及纜繩的張力值,作為實驗數據分析比較。
實驗結果發現,不同實驗之波浪週期、波高、不同浮筒吃水深及不同裝填水柱長的實驗條件下,都顯出附加TLCD的結構反應(位移及頻譜反應)均小於附加等質量鐵塊的結構物,實驗結果反應出TLCD良好的減振效果,而且附加TLCD結構物的繫纜繩張力值也明顯減小,證明TLCD對減少錨定系統受力及增加使用年限有大大的幫助。

Abstract
Abstract
In this study, a model of typical tension-leg type of floating platform incorporated with the upgraded TLCD (Tuned liquid column damper) devices is tested experimentally. The advantages of upgraded TLCD are as follows:
1. When the TLCD devices are applied, 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. The force of tension-leg could be adjusted by the quantity of water which is
injected into the columns.
In this thesis, a scaled-down model is tested in the laboratory to verify the analytical results. When the experiment is tested, the total mass of system should be controlled no matter if the TLCD devices are applied or not. Both the acceleration and tendon force are recorded. The acceleration of the platform is obtained in the accelerometers including the surge, heave and pitch motions.
The tendon force is obtained by the strain gage.
According to the results of experimental testing the platform system incorporated with TLCD devices has smaller response during the different cases. The amplitude reduction effect can be observed in the response of time history including the surge, heave and pitch motions while the energy reduction effect can be observed in the response spectra for the surge, heave and pitch motion. Additionally, the tendon force reduces obviously. Thus, this study may verify that the application of TLCDs to the offshore system is found valuable.

目次 Table of Contents
目錄
中文摘要
英文摘要
目錄 Ⅰ
圖目錄 Ⅲ
表目錄 Ⅶ
照片 Ⅷ
符號說明 Ⅸ
第一章 序論 1_1
1.1 研究目的與背景 1_1
1.2 文獻回顧 1_2
1.2.1 繫纜式浮體結構物 1_2
1.2.2 調諧液柱阻尼器 1_3
1.3本文架構 1_4
第二章 浮體結構物裝置調諧液柱阻尼器之動力分析 2_1
2.1 浮體裝置TLCD之運動方程式 2_1
2.1 外力項之計算 2_4
2.2 結構附加TLCD後之複數頻率反應函數 2_4
2.3 結構附加TLCD後之波浪作用力頻譜及反應頻譜 2_6
第三章 水工模型實驗 3_1
3.1 實驗儀器及設備 3_1
3.2 水工模型設計 3_2
3.2.1 相似理論與模型縮尺 3_3
3.2.2 實驗模型製作 3_4
3.2.3 繫纜繩彈性係數測試 3_4
3.3 實驗波浪條件 3_5
3.4 實驗計畫與結構附加TLCD條件 3_5
3.4.1 CASE1_不同週期、波高之比較 3_5

3.4.2 CASE2_不同初始吃水深之比較 3_6
3.4.3 CASE3_不同裝填水柱長之比較 3_6
3.5 實驗數據分析 3_6
3.6 實驗步驟 3_7
3.6.1電阻應變計之黏貼及率定工作 3_7
3.6.2 結構體運動之量測 3_8
3.6.3 注意事項 3_8
第四章 實驗結果與數值模擬之討論 4_1
4.1 實驗結果與討論 4_1
4.1.1 CASE1_不同週期、波高之比較 4_1
4.1.2 CASE2_不同初始吃水深之比較 4_4
4.1.3 CASE3_不同裝填水柱長之比較 4_6
4.2 實驗結果與數值模擬之討論 4_7
4.2.1 數值模擬條件之給定 4_7
4.2.2 實驗值與理論值之比較 4_8
4.2.3 實驗與理論差異探討 4_8
第五章 綜合結論與建議 5_1
5.1 結論 5_1
5.2 建議 5_2
參考文獻 文獻_1
附錄A A_1
附錄B B_1
附錄C C_1
附錄D D_1
附錄E E_1
附錄F F_1
附錄G G_1
參考文獻 References
參考文獻
Abdel-Rohman, M. (1984). ”Optimal design of active TMD for building control”, Building and Environment, 19, 191-195.
Bathe, K. J. (1982). ”Finite Element Procedures in Engineering Analysis”, Prentice Hall, Inc., Englewood Cliffs, New Jersey.
Balendra, T., Wang, C. M. and Cheong, H. F. (1995). ”Effectiveness of turned liquid column dampers for vibration control of towers”, Engineering Structures, 17,668-675.
Black, J. L. and Mei, C.C. (1969). ”Scattering of surface waves by rectangular obstacles in water of finite depth”, Journal of Fluid Mechanics, 38, 499-511.
Black, J. L., Mei, C.C. and Bray, M. C. G. (1971). ”Radiation and scattering of water waves by rigid bodies”, Journal of Fluid Mechanics, 46, 151-164.
Borgman, L. E. (1967). A statical theory for hydrodynamic forces on objects. Wave Research Project Report HEL-9-6, UC, Berkeley, CA.
Chaiseri P., Fujino Y., Pacheco B. M. and Sun L. M. (1989). “Interaction of tuned liquid damper(TLD)and structure:theory, experimental verification and application”, Structural Engineering and Earthquake Engineering, 6, 273-282.
Fujino, Y., Pacheco, B. M., Chaiseri, P. and Sun, L. M. (1988). “Parametric studies on tuned liquid damper(TLD)using circular containers by free-oscillation experiments”, Structural Engineering and Earthquake Engineering, 5, 381-391.
Fujion, Y. and Sun, L. M. and Pacheco B. M. (1992). “Tuned Liquid Damper(TLD)for suppressing horizontal motion of structures”, Journal of Engineering Mechanics, 118, 2017-2030
Fujion, Y. and Sun, L. M. (1993). “Vibration control by multiple tuned liquid dampers(MTLDs)”, Journal of Structural Engineering, 119, 3482-3502.
Gao, H. and Kwok, K. C. S. (1997). “Optimization of tuned liquid column dampers”, Engineering Structures, 19, 476-486.
Garrison, C. J. (1974). “Dynamic response of floating bodies”, OTC, 2067, 365-378.
Hitchcock, P. A. Kwok, K. C. S., Watkins, R. D. and Samali, B. (1997). “Characteristics of liquid column vibration absorbers(LCVA)-Ⅰ ”, Engineering Structures, 19, 126-134.
Hitchcock, P. A. Kwok, K. C. S., Watkins, R. D. and Samali, B. (1997). “Characteristics of liquid column vibration absorbers(LCVA)-Ⅱ ”, Engineering Structures, 19, 135-144.
Isaacson, M. (1978). ”Nonlinear inertia forces on bodies”, Journal of the Waterways and Harbors Division, ASCE WW3, 213-227.
Jain A. K. (1997). “Nonlinear coupled response of offshore tension leg platform to regular wave forces”, Ocean Engineering, Vol.24, No.7, pp.577-529.
Kareem, A. Kline, S. (1995). ”Performance of multiple mass dampers under random loadings”, Journal of Structural Control, 3-5, FP5-19-FP5-28.
Lee, C. P. and Lee, J, F. (1993). “Wave induced surge motion of a tension leg structure”, Ocean Engineering, 20, 171-186.
Lee, C. P. (1994). “Dragged surge motion of a Tension Leg Structure”, Ocean Engineering, 21, 377-328.
Lee, H. H., Wang. P. W. and Lee, C. P. (1999). ”Dragged surge motion of a Tension Leg platforms and strained elastic tethers”, Ocean Engineering, 26, 575-594.
Lee, H. H., Wang, W. S. and Wang, P. W. (1999). “Dynamic motion of TLP with wave-large body and wave-small body interaction”, Proceeding of the Ninth International Offshore and Polar Engineering Conference, France, pp.309-314.
Luft, R. W. (1979). ”Optimal tuned mass dampers for buildings”, Journal of Structural Division, ASCE, 105, 2766-2772.
Newman, J. N. (1977). Marine Hydrodynamics. MIT Press, Cambridge, MA.
Penzine, J. and Tseng, S. (1978). “Three-dimensional dynamic analysis of fixed offshore platform”, In Numerical Methods in offshore Engineering, ed. O. C. Zienkiewicz, R. W. Lewis, and K. G. Stagg. John Wiley and Sons, New York, 221-243.
Peter, J. V. (1995). ”Wind-induced response of tension leg platform:theory and experiment”, Journal of Structural Engineering, 121 ,651-663.
Pierson, W. J. and (1964). “A proposed spectral form for fully developed wind seas based on the similarity theory of S. A. Kitaigorodskii”, Journal of Geophysical Research, 69, 5181-5190.
Sakai F., Takaeda S. and Tamaki T. (1989). “Tuned liquid column damper new type device for suppression of building vibrations”, Proceedings of International Conference on Highrise Buildings, 926-931.
Sarpkaya, T. and Isaacson, M. (1981). Mechanics of Wave Forces on Offshore Structures. Van Nostrand Reinhold, New York.
Wen, Y. K. (1980). ”Equivalent linearization for hysteretic systems under random excitation”, Journal of Applied Mechanics, 47, 150-154.
Won, A. Y. J., Piers J. A. and Haroun, M. A. (1996). “Stochastic seismic performance evaluation of tuned liquid column dampers”, Earthquake Engineering and Structural Dynamics, 25, 1259-1274.
Xu, Y. L., Samali, B. and Kwok, K. C. S. (1992). “Control of along-wind response of structures by mass and liquid dampers”, Journal of Engineering Mechanics, 118, 20-39.
Yilmaz, O. and Incecik, A. (1996). ”Hydrodynamic design of moored floating platforms”, Marine Structures, 9, 545-575.
郭金棟,(1995).”海洋工程”,中國土木水利工程學會,pp.70-72
王佩文,(1999). “繫纜式浮體結構在波浪作用下之動力行為分析”, 中山大學海洋環境系碩士論文.
李任翔,(1999). “調諧液柱阻尼器於繫纜式浮體結構之應用”, 中山大學海洋環境系碩士論文.
翁庶航,(2000). “繫纜式浮體結構裝設調諧液柱阻尼器之動力分析及減振研究”, 中山大學海洋環境系碩士論文.
電子全文 Fulltext
本電子全文僅授權使用者為學術研究之目的,進行個人非營利性質之檢索、閱讀、列印。請遵守中華民國著作權法之相關規定,切勿任意重製、散佈、改作、轉貼、播送,以免觸法。
論文使用權限 Thesis access permission:校內校外完全公開 unrestricted
開放時間 Available:
校內 Campus: 已公開 available
校外 Off-campus: 已公開 available


紙本論文 Printed copies
紙本論文的公開資訊在102學年度以後相對較為完整。如果需要查詢101學年度以前的紙本論文公開資訊,請聯繫圖資處紙本論文服務櫃台。如有不便之處敬請見諒。
開放時間 available 已公開 available

QR Code