Apparatus and Method for reducing oscillation frequency of Tuned Liquid Column Damper

According to an embodiment of the present invention, an apparatus for reducing an oscillation frequency of a tuned liquid column damper comprises: a tuned liquid column damper placed in an upper portion of a structure, and varying flow velocity of a liquid flowing therein in accordance with oscillat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LEE, CHAN HUI, KIM, HEUI WON, KIM, WON HYUN
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:According to an embodiment of the present invention, an apparatus for reducing an oscillation frequency of a tuned liquid column damper comprises: a tuned liquid column damper placed in an upper portion of a structure, and varying flow velocity of a liquid flowing therein in accordance with oscillation of the structure to reduce oscillation of the structure; an oscillation sensor measuring oscillation of the structure; a level sensor detecting the level of the liquid flowing in the tuned liquid column damper; and a control unit controlling an opening rate of a flow velocity variable orifice provided in the multidirectional tuned liquid column damper based on a measured value of the oscillation sensor and the level detection sensor. 본 발명의 일 실시 예에 따른 동조 액주관 댐퍼의 진동주파수 감쇠 제어 장치는 구조물의 상부에 위치하고, 내부에서 유동하는 액체의 유속을 상기 구조물의 진동에 따라 가변시켜, 상기 구조물의 진동을 감쇠시키는 동조 액주관 댐퍼; 상기 구조물의 진동을 측정하는 진동감지센서; 상기 동조 액주관 댐퍼 내에 유동하는 상기 액체의 수위를 감지하는 수위감지센서; 상기 진동감지센서 및 상기 수위감지센서의 측정값에 기초하여 상기 다방향 동조 액주관 댐퍼 내에 구비된 유속 가변형 오리피스의 개구율을 제어하는 제어부를 포함한다.