A hydraulic inertial capacity balance tuning vibration damping device

Abstract

The invention discloses a hydraulic inertia balance tuning vibration damping device, which comprises a protection cylinder, and a mass block is arranged inside the protection cylinder, two opposite sides of the mass block are connected with an "inertia-damping" vibration reduction unit, and the mass The other two opposite sides of the block are respectively connected with a positive and negative stiffness parallel unit; the "inertia-damping" unit includes two damping chambers, piston rods, pistons, curved tubes and induction control devices; the two damping chambers are connected by curved tubes The coil is connected to the induction control device; the mass block is connected to the piston in the damping chamber through the piston rod, and two positive and negative stiffness parallel units are located on both sides of the mass block. The negative stiffness parallel unit includes an insulating cylinder, magnet and U-shaped mild steel rod; the mass block connects two rigid rods, and the two rigid rods respectively extend into the two insulating cylinders and connect with a linkage block; There are two ring magnets set together, the two ring magnets are connected through U-shaped soft steel rods, and the linkage block is connected with the ring magnet located in the inner ring.

Description

technical field [0001] The invention belongs to the field of vibration control of civil engineering, and in particular relates to a hydraulic inertial capacity balance tuning vibration damping device, which is mainly used in controlling the vibration response of high-rise buildings and towering structures. Background technique [0002] In actual engineering, structural strength is often increased by increasing the size of load-bearing components, or structural ductility is considered through cracking and failure of structural components, thereby improving the seismic performance of buildings. Traditional seismic design ideas not only increase material costs, but also make post-earthquake repairs extremely difficult. Based on this, the introduction of vibration control theory into structural engineering will transform the structural design from the simple anti-seismic design stage to the shock-absorbing design stage, which has broad application prospects. [0003] The curren...

AI Technical Summary

Problems solved by technology

However, for high-rise structures or long-span structures, there is often a huge mass, and the additional mass of the vibration damping device cannot be too small if the optimal mass ratio is satisfied

However, large mass elements may change the dynamic characteristics of the main structure, and the vibration response under earthquake action or wind load will be more complicated

At the same time, the limited layout space will also lead to complex construction techniques, which will increase consumption costs

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