Particle inertial-capacitance damping device

Abstract

The invention discloses a particle inertial-capacitance damping device. The particle inertial-capacitance damping device comprises a first metal shell, a nut, a ball screw, a bearing, a flywheel, particles, a second metal shell and an energy dissipation layer, wherein one end of the ball screw is inserted into the first metal shell through the nut, and the other end of the ball screw is inserted into the second metal shell through the bearing and welded to the flywheel; and a plurality of fan-shaped grooves are cut in the flywheel according to the equal division principle, the depth of the grooves can be set to be 5-20 times the diameter of the particles according to needs, a certain number of particles are placed in the second metal shell, and the inner walls of the shells are attached to the energy dissipation layer. The particle inertial-capacitance damping device has the advantages of being low in price, easy to maintain, convenient to install and the like, meanwhile, inertial-capacitance energy absorption can be achieved, the damping particles are accelerated through the inertial-capacitance device, and kinetic energy of a controlled structure is further absorbed; and the vibration starting condition of the damping particles is reduced, and therefore collision and vibration between structures under the effects of wind loads, earthquakes, blasting impact and the like can be effectively reduced through the particle inertial-capacitance damping device for damping particle collision friction energy dissipation.

Description

technical field [0001] The invention relates to a particle inertial capacity damping device, which belongs to the field of engineering vibration control. Background technique [0002] With the increase of people's demand for multifunctional structures and the continuous improvement of urbanization level, civil engineering structures are booming. The building structure is constantly developing in the direction of higher, softer, larger, and more complex, while the bridge structure is constantly developing in the direction of longer, longer span, and complex application environment. In addition to the effects of loads, the effects of accidental loads such as wind loads, earthquake loads, and explosion shocks should also be considered. The impact of wind load, earthquake load or blast impact load on the safety of high-rise, super high-rise, high-rise, long-span space structures, and long bridge structures cannot be ignored. And engineers have abandoned, "soft resistance" and ...

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Problems solved by technology

[0004] In order to solve the problems that the traditional inerter device does not have its own energy consumption capacity, the vibration starting condition of the traditional particle damper is difficult, and the energy consumption capacity is difficult to exert during small earthquakes, etc., the present invention proposes an inertial energy-absorbing device, and through the inerter device Accelerate the damping particles to further absorb the kinetic energy of the controlled structure; and reduce the vibration conditions of the damping particles, and then pass through the particle inertial damping device that damps the particles to collide and consume frictional energy

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