Friction-type quality turning wheel damper

Abstract

A friction-type quality turning wheel damper comprises a spiral actuating rod. The spiral actuating rod is connected with a round connecting plate after penetrating through a high strength shell, an upper positioning pressure bearing body, quality turning wheels and a lower positioning pressure bearing body sequentially. The upper end of the spiral actuating rod stretches out of the high strength shell, a first pre-pressing spring is arranged between the lower positioning pressure bearing body and the round connecting plate, a second pre-pressing spring is arranged between the round connecting plate and a sub plate fixed at the lower end portion of the high strength shell, and a connecting rod is connected to the lower end portion of the high strength shell. Slide grooves are formed in the upper positioning pressure bearing body and the lower positioning pressure bearing body, arc-shaped friction plates are mounted in the slide grooves, the arc-shaped friction plates are matched with the quality turning wheels, arch-shaped hinges are connected to the arc-shaped friction plates, and ultra-magnetostriction materials are connected to the arc-shaped hinges. Skeleton sleeves are arranged on the ultra-magnetostriction materials, field coils are wound on the skeleton sleeves, and the other ends of the ultra-magnetostriction materials are fixed on the high strength shell. The friction-type quality turning wheel damper can adapt to energy dissipation and seismic mitigation under different seismic actions, and increase the output force of the damper at the same time, and is high in response speed.

Description

technical field [0001] The invention relates to the technical field of structural energy dissipation and shock absorption, in particular to a frictional mass runner damper. Background technique [0002] In recent years, earthquakes have occurred frequently, seriously affecting the safety of people's lives and property. In the face of rapid economic development, the height of buildings has become higher and higher, and the structural design has abnormal shapes and large spans. The serious impact of earthquakes on the safety, durability and applicability of building structures is increasingly highlighted. The structural energy-dissipating and shock-absorbing device designed according to the traditional design method has a small overall output, slow response, and poor adaptability to the external environment. It is not suitable for large-scale building structures and has a small scope of application. And because the force of the damper needs to be set in advance, it often occu...

AI Technical Summary

Problems solved by technology

The structural energy dissipation and shock absorption device designed according to the traditional design method has small overall output, slow response, and poor adaptability to the external environment. It is not suitable for large-scale building structures and has a small scope of application.

And because the force of the damper needs to be set in advance, it often occurs in an earthquake that when the set force can perform frictional sliding under the action of a large earthquake, it often does not necessarily slide in a small earthquake, and cannot function under the action of a small earthquake. Energy consumption and shock absorption; on the contrary, when the set force can perform frictional sliding under the action of a small earthquake, it often cannot slide during a large earthquake, nor can it play the role of energy consumption and shock absorption under the action of a large earthquake, and it is difficult to completely avoid it. Structural damage and destruction, and poor post-earthquake restoration ability

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