Title:
構造物の振動抑制装置
Document Type and Number:
Japanese Patent JP6918415
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a vibration suppression apparatus of a structure, which can appropriately control the inertia mass of a variable rotary inertia mass damper that constitutes an additional vibration system according to a vibration inputting to the structure at each time, thereby appropriately suppressing the vibration of the structure by the additional vibration system.SOLUTION: In a vibration suppression apparatus of a structure, displacement of the structure transmitted through an elastic member accompanying vibration of the structure is transformed to a rotational motion of rotary mass, and a variable rotary inertia mass damper is configured to change inertia mass generated accompanying a rotation of the rotary mass. A dominant frequency fcp is acquired which is the frequency of a predominated frequency component among vibration inputted to the structure (step 2). The inertia mass of the variable rotary inertia mass damper is controlled such that a characteristic frequency of an additional vibration system synchronizes to an adjacent characteristic frequency fn as the characteristic frequency closest to an acquired dominant frequency fcp among a plurality of predefined characteristic frequencies of the structure during the vibration of the structure (steps 3 to 7).SELECTED DRAWING: Figure 8
Inventors:
Hidenori Kida
Shigeki Nakanami
Hisaya Tanaka
Shigeki Nakanami
Hisaya Tanaka
Application Number:
JP2017159356A
Publication Date:
August 11, 2021
Filing Date:
August 22, 2017
Export Citation:
Assignee:
Seismic control device Co., Ltd.
International Classes:
E04H9/02
Domestic Patent References:
| JP2016166668A | ||||
| JP2016098864A | ||||
| JP2014052066A | ||||
| JP2016089533A |
Foreign References:
| US4429496 |
Attorney, Agent or Firm:
Tomoo Takahashi
Hiroto Mohri
Koji Arai
Hiroto Mohri
Koji Arai