A viscous damper input displacement rate acceleration device

Abstract

The invention discloses a viscous damper input displacement rate increasing device which comprises a closed protection casing, a damper connecting piece, an acceleration transmission system, an input rod and an output rod. A damper input rod port and a connection rod are arranged on the damper connecting piece. A first input rod guide roller in contact with the bottom face of the input rod is arranged on the inner wall at the lower portion of the closed protection casing, and a first output rod guide roller in contact with the top face of the output rod is arranged on the inner wall of the upper portion of the closed protection casing. The acceleration transmission system comprises a dual gear, a straight gear, an input rod rack and an output rod rack. The dual gear is composed of a first gear and a second gear which are connected, the radius of the first gear is larger than that of the second gear, the first gear is meshed with the straight gear, the straight gear is meshed with the output rod rack, and the second gear is meshed with the input rod rack. The device can effectively improve the vibration control efficiency of the building structure when the deformation of the building structure is small or slow.

Description

technical field [0001] The invention belongs to the technical field of anti-seismic control of civil engineering structures, and in particular relates to an input displacement rate acceleration device of a viscous damper. Background technique [0002] With the increasing span and height of buildings and the increasing complexity of structures, it is difficult for engineering structures designed according to traditional design methods to completely avoid damage and destruction under the action of strong earthquakes. Suppressing the structural dynamic response caused by external dynamic loads through vibration control technology is an effective means to improve structural safety, such as the application of passive anti-seismic control technology. Among them, the technology of applying various viscous dampers for passive seismic control of structures is relatively common. At the same time, using the principle of leverage to amplify the displacement of the structure transmitted...

AI Technical Summary

Problems solved by technology

At the same time, using the principle of leverage to amplify the displacement of the structure transmitted to the damper to improve the energy dissipation efficiency of the damper has also been related research, but the previous research is still not perfect, such as its structural form leads to its limited applicability, it is difficult to be different from Types of structures or structural components are integrated and installed, and the disadvantage of the lever transmission itself is that the transmission efficiency is relatively low

However, neither the research field nor the engineering application considers the method that can improve the working efficiency of the viscous damper when the structure undergoes small deformation or the deformation rate is slow.

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