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Title: | 裝置柵欄之諧調液體阻尼器減振研究 Study on vibration control of tuned liquid dampers with screens |
Authors: | Chiun-Hsiang Chiu 邱俊祥 |
Advisor: | 黃維信(Wei-Shien Hwang) |
Keyword: | 沖激行為,諧調液體阻尼器,多孔材質流場,柵欄, Sloshing behavior,Tuned liquid dampers,Porous media flow,Screens, |
Publication Year : | 2020 |
Degree: | 碩士 |
Abstract: | 本文以實驗方法探討裝置拼接式多孔材質之諧調液體阻尼器的沖激行為,討論裝載多片拼接式多孔材質,在使用兩種不同的排列方式,分別討論液體阻尼器承受衝擊、簡諧振動之動態反應與水波特性。假設流場具有無旋之特性且流體具有不可壓縮性,使得流場的速度勢滿足拉普拉斯方程式,並假設流場內的消能機制符合達西定律,邊界條件滿足不可穿透性及自由液面上的動力與運動條件,進一步求解出穩態及暫態的速度勢。由試驗及分析結果顯示,裝置拼接式多孔材質之諧調液體阻尼器具有良好的減振效果。此外,在本研究試驗中,以裝置最多片、採用交錯排列拼接式多孔材質之液體阻尼器具有最佳的減振效果。 This paper investigates the sloshing behavior of tuned liquid dampers(TLD) which installs several pieces of screens and two different types of arrangement by experiment to discusses its vibration control. The experimental studies involve impulse and harmonic excitations based on natural frequencies of the tank. An irrotational incompressible flow is assumed. The velocity potential satisfies Laplace equation. The damping force is based on Darcy’s law. The results showed that TLDs which installs maximum pieces and stagger screens has the best vibration control. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/52209 |
DOI: | 10.6342/NTU202002610 |
Fulltext Rights: | 有償授權 |
Appears in Collections: | 工程科學及海洋工程學系 |
Files in This Item:
File | Size | Format | |
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U0001-0708202011525100.pdf Restricted Access | 4.21 MB | Adobe PDF |
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