Honeycomb type shape memory alloy multi-dimensional vibration damper

Abstract

The invention relates to a honeycomb type shape memory alloy multi-dimensional vibration damper, which belongs to the technical field of civil engineering and mechanical engineering. The honeycomb type shape memory alloy multi-dimensional vibration damper mainly comprises steel flanges, a honeycomb type shape memory alloy cylinder, a friction steel plate, and shape memory alloy stranded wires. The honeycomb type shape memory alloy multi-dimensional vibration damper is characterized in that one end of the shape memory alloy cylinder is connected with a lower flange, while the other end is connected with the friction steel plate; the middle part of the cylinder is evenly and symmetrically distributed with 22 cylindrical bores similar to a honeycomb; the middle part of the friction steel plate is connected with an upper flange through 14 high strength bolts, and the friction steel plate is connected with steel blocking strips along a peripheral axial direction through 8 groups of the shape memory alloy stranded wires; and the vibration damper is fixed to a part requiring vibration control through bolt holes on the flanges. The honeycomb type shape memory alloy multi-dimensional vibration damper has the advantages of satisfying damping force with different strengths required in vibration, and inhibiting a structure or a component to vibrate at any directions so as to achieve the multi-dimensional vibration control of the structure; besides, when the vibration is ended, the vibration damper can restore to the initial position automatically.

Description

technical field [0001] The invention belongs to the technical fields of civil engineering and mechanical engineering, and relates to a honeycomb shape memory alloy multidimensional shock absorber. Background technique [0002] The traditional anti-seismic design is to resist earthquake action by enhancing the stiffness of the building itself, that is, relying on the structure itself to store and consume seismic energy to meet the structural anti-seismic fortification standards. Under the circumstances, it is likely that the security requirements are not met. Energy dissipation technology provides a reasonable and effective way for structures to resist earthquakes. The vibration reduction technology of passive energy dissipation dampers is relatively mature. However, as a passive control device, the output force is single, and durability and corrosion resistance are common problems in current energy dissipation devices. For example, the viscoelastic damper is easy to age, t...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a honeycomb shape memory alloy multi-dimensional shock absorber, the purpose of which is to solve the problems of existing passive dampers such as single output, residual deformation, poor durability, only one-way damping ability, and limited energy dissipation capacity.

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