A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
VIBRATION SUPPRESSION DEVICE FOR STRUCTURE
PROBLEM TO BE SOLVED: To provide a vibration suppression device for a structure capable of appropriately suppressing vibration of a layer at an upper side of a predetermined layer of a structure in which a variable rotational inertia mass damper is provided, by appropriately controlling an inertia mass of the variable rotational inertia mass damper in accordance with vibration inputted to the structure every time.SOLUTION: An inter-layer displacement of a predetermined layer transmitted with vibration of a structure is converted into a rotational motion of a rotational mass, and a variable rotational inertia mass damper is configured to continuously change an inertia mass that is generated with rotation of the rotational mass. A dominant frequency fcp that is a frequency of a dominant frequency component in vibration inputted to the structure is acquired (step 2), and an inertia mass of the variable rotational inertia mass damper is controlled in such a manner that a cutoff frequency which is determined in accordance with rigidity of the predetermined layer and the inertia mass of the variable rotational inertia mass damper is tuned at the acquired dominant frequency fcp in the vibration of the structure (steps 3 to 6).SELECTED DRAWING: Figure 9
【課題】構造物に入力されるそのときどきの振動に応じて可変回転慣性質量ダンパの慣性質量を適切に制御でき、それにより、可変回転慣性質量ダンパが設けられた構造物の所定層よりも上側の層の振動を適切に抑制することができる構造物の振動抑制装置を提供する。【解決手段】構造物の振動に伴って伝達された所定層の層間変位が回転マスの回転運動に変換されるとともに、可変回転慣性質量ダンパが、回転マスの回転に伴って発生する慣性質量を連続的に変更可能に構成されている。構造物に入力される振動のうちの卓越する周波数成分の周波数である卓越周波数ｆｃｐが取得され（ステップ２）、構造物の振動中、所定層の剛性と可変回転慣性質量ダンパの慣性質量とによって定まる遮断振動数が取得された卓越周波数ｆｃｐに同調するように、可変回転慣性質量ダンパの慣性質量が制御される（ステップ３〜６）。【選択図】図９
VIBRATION SUPPRESSION DEVICE FOR STRUCTURE
PROBLEM TO BE SOLVED: To provide a vibration suppression device for a structure capable of appropriately suppressing vibration of a layer at an upper side of a predetermined layer of a structure in which a variable rotational inertia mass damper is provided, by appropriately controlling an inertia mass of the variable rotational inertia mass damper in accordance with vibration inputted to the structure every time.SOLUTION: An inter-layer displacement of a predetermined layer transmitted with vibration of a structure is converted into a rotational motion of a rotational mass, and a variable rotational inertia mass damper is configured to continuously change an inertia mass that is generated with rotation of the rotational mass. A dominant frequency fcp that is a frequency of a dominant frequency component in vibration inputted to the structure is acquired (step 2), and an inertia mass of the variable rotational inertia mass damper is controlled in such a manner that a cutoff frequency which is determined in accordance with rigidity of the predetermined layer and the inertia mass of the variable rotational inertia mass damper is tuned at the acquired dominant frequency fcp in the vibration of the structure (steps 3 to 6).SELECTED DRAWING: Figure 9
【課題】構造物に入力されるそのときどきの振動に応じて可変回転慣性質量ダンパの慣性質量を適切に制御でき、それにより、可変回転慣性質量ダンパが設けられた構造物の所定層よりも上側の層の振動を適切に抑制することができる構造物の振動抑制装置を提供する。【解決手段】構造物の振動に伴って伝達された所定層の層間変位が回転マスの回転運動に変換されるとともに、可変回転慣性質量ダンパが、回転マスの回転に伴って発生する慣性質量を連続的に変更可能に構成されている。構造物に入力される振動のうちの卓越する周波数成分の周波数である卓越周波数ｆｃｐが取得され（ステップ２）、構造物の振動中、所定層の剛性と可変回転慣性質量ダンパの慣性質量とによって定まる遮断振動数が取得された卓越周波数ｆｃｐに同調するように、可変回転慣性質量ダンパの慣性質量が制御される（ステップ３〜６）。【選択図】図９
VIBRATION SUPPRESSION DEVICE FOR STRUCTURE
構造物の振動抑制装置
KIDA HIDENORI (author) / NAKAMINAMI SHIGEKI (author) / TANAKA HISAYA (author)
2018-08-16
Patent
Electronic Resource
Japanese