A composite multi-dimensional vibration reduction device with damping amplification function

Abstract

The invention discloses a composite multi-dimensional vibration reduction device with damping amplification function, which comprises an external cylinder body, inside the cylinder body there are a horizontal vibration reduction energy consumption system and a vertical vibration reduction energy consumption system; the horizontal vibration reduction energy consumption system consists of a central Composed of a mass body, a piston damper and a vibration-absorbing layer; the vertical vibration-reducing energy-dissipating system is composed of a central mass body, an electromagnetic rotating energy-dissipating mechanism and a friction layer; the invention realizes the multi-dimensional vibration-reducing control of the structure and enhances the The vibration reduction and energy dissipation effect of the device; through the introduction of a piston damper filled with magneto-rheological fluid and an electromagnetic rotary energy dissipation device, the damping and energy dissipation capacity during the vibration process can be adjusted; through piezoelectric ceramics, a part The vibration energy is converted into electrical energy, which is directly supplied to the energized coil, and the damping force and energy consumption capacity of the vibration damping device are adjusted in real time through the form of energy conversion by the structural vibration itself, realizing the automatic adjustment and energy self-sufficiency of the vibration damping device.

Description

A compound multi-dimensional vibration damping device with damping amplification function technical field The invention belongs to the vibration control field of civil engineering, be specifically related to a kind of compound type with damping amplification function Multi-dimensional vibration damping device is mainly used to control the vibration response of large-span structures and towering structures, and reduce the impact of vibration on buildings or structures. damage to buildings. technical background Due to their structural characteristics, large-span structures and towering structures usually have higher flexibility, and their natural frequency It is often close to the motion frequency of earthquakes, strong winds and common live loads, so it tends to have an impact during service Vibration for structural safety and comfort. The large-span structure and towering structure are due to their unique artistry, excellent visual effects and Good economic value ...

AI Technical Summary

Problems solved by technology

Most of the mainstream damping and shock absorbing devices are passive shock absorbers with relatively simple structure and good reliability and durability. Insufficient vibration reduction and energy dissipation capabilities; active vibration reduction devices developed on the basis of passive vibration reduction usually require external energy input and additional structural dynamic monitoring systems, with complex structures and high costs

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