A tension-compression magnetic shape memory alloy multi-mode smart damper

Abstract

The invention relates to a tension-compression type magnetic shape memory alloy multi-mode intelligent damper. The damper is mainly composed of connecting flanges, a core rod, a guide nut, a cylinder barrel, magnetic shape memory units, a guide piston, a spring and a closing nut. The core rod is arranged in the cylinder barrel. The multiple magnetic shape memory units are distributed along the periphery of the core rod. The two ends of the magnetic shape memory units are connected with the guide nut and the guide piston correspondingly. The spring is installed between the guide piston and the closing nut. The connecting flanges arranged at the two ends of the damper are connected with a main body structure. The damper has multiple working states such as passive control, semi-active control and active control, is high in intelligence degree and has the advantages of high response frequency, high damping capacity, automatic resetting, stable performance and the like.

Description

technical field [0001] The technical field of energy consumption and vibration reduction control of civil engineering structures of the present invention specifically relates to an intelligent control device used in the field of vibration control of civil engineering structures, which is used for safety and comfort control under the action of dynamic disasters. 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 to improve the earthquake resistance and wind resistance of civil engineering structures, and to meet the requirements of structural safety and functional functions. In recent years, structural intelligent control ...

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Problems solved by technology

However, due to the brittleness of the material and the limitation of current processing technology, most of the magnetic shape memory alloy materials are small blocks, which are difficult to process into large-scale components such as wires and rods, and are suitable for large-scale civil engineering structures. Tonnage magnetic shape memory alloy dampers are relatively rare

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