Magnetically induced shape memory alloy confined friction damper with self-resetting function

Abstract

The invention relates to a magnetic shape memory alloy restraining friction damper with a self-reset function.The magnetic shape memory alloy restraining friction damper comprises connection flanges, a connection nut, a cylindrical barrel, a middle guide nut, a control unit, an outer sliding block, a closed guide nut and a core guide rod.The connection flanges are arranged at the two ends of the damper.The connection flange at one end is connected with the connection nut, and the connection flange at the other end is connected with the core guide rod.The connection nut is installed at the end of the side where a cavity is located of the cylindrical barrel.The core guide rod is arranged in the cylindrical barrel.The core guide rod is wrapped by the outer sliding block.A plurality of control units are arranged on the outer side of the outer sliding block.The middle guide nut and the closed guide nut are arranged at the two ends of the outer sliding block respectively.The magnetic shape memory alloy restraining friction damper has the advantages of being high in damping capacity, large in recoverable deformation, stable in performance, capable of freely switching a plurality of working states and the like.

Description

technical field [0001] The invention is an intelligent control device used in the field of vibration control of civil engineering structures, which is used for the safety and comfort control of high-rise buildings, long-span buildings, bridge structures and other civil engineering structures under the action of dynamic disasters, and belongs to civil engineering The technical field of structural energy consumption and vibration reduction control, in particular, relates to a magnetically induced shape memory alloy constrained friction damper with self-resetting function. Background technique [0002] Structural vibration reduction control effectively controls the vibration response of the structure by properly setting vibration reduction and energy dissipation devices in the structure, so that the response values ​​of the structure under the action of earthquake, strong wind or other dynamic disturbances are controlled within the allowable range. It is of great significance f...

AI Technical Summary

Problems solved by technology

However, due to the limitations of processing performance and cost of current magnetic shape memory alloy materials, there are few large-tonnage magnetically controlled shape memory alloy dampers suitable for civil engineering structures.

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