Parallel type acceleration inert energy dissipation device

Abstract

The invention discloses a parallel type acceleration inert energy dissipation device. The parallel type acceleration inert energy dissipation device comprises connecting lug rings, a connecting rod, an outer cylinder, a rotary inner cylinder, spiral coils, permanent magnets, a rotating screw nut, a ball screw, an externally added mass, an internally added mass and the like. The concept of a two-node mass unit is proposed; the parallel type accelerate inert energy dissipation device is designed and applied to the engineering structure fields, such as buildings and bridges, and is an energy dissipation and seismic mitigation energy dissipation device with a new energy consumption principle which is disclosed for the first time. The existing mass unit model can be regarded as a rigid body; only the rigid body displaces, and relatively displacement inside the unit is not generated; the two-node mass unit is allowed to displace relatively in the unit but is restrained; external force of the unit can be expressed as the product of a mass and the vector difference of accelerations of two nodes, namely F=m(a2-a1). The two-node mass unit is mainly proposed for distinguishing an inertia mass two-node unit model and the existing rigid body mass unit; the compact parallel type acceleration inert energy dissipation device is provided in a mode of connecting two units in parallel by combining an eddy current energy dissipation principle.

Description

technical field [0001] The invention relates to a parallel acceleration inertia energy dissipator, which belongs to the technical field of energy dissipation and shock absorption of civil engineering structures. Background technique [0002] The energy dissipation and vibration reduction technology is to add an energy dissipation and vibration reduction device to the structure, and the additional vibration reduction device and the structure itself jointly bear the effects of earthquake and wind vibration. Scholars at home and abroad have done a lot of research on energy dissipation and vibration reduction technology. As an effective means of reducing building and infrastructure disasters, energy dissipation devices are usually divided into velocity type energy dissipation devices and displacement type energy dissipation devices. The speed type damper has good energy dissipation effect, but it often has high requirements on the energy dissipation device itself, strict sealin...

AI Technical Summary

Problems solved by technology

Electromagnetic damping force means that when the conductor cuts the magnetic field lines in the magnetic field, an induced current will be generated in the conductor, and the ampere force received by the induced current always hinders the movement of the conductor, thereby providing electromagnetic damping, but generally the energy consumption efficiency is low

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