A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Displacement rotation amplifying type shape memory alloy damper
The invention discloses a displacement rotation amplifying type shape memory alloy damper which comprises superelastic shape memory alloy wires, a ball screw threaded rod, a ball screw nut, a guide supporting seat, a fixed retaining block, a ball bearing, clamps, a fixing plate, a sleeve, a left end cap, a right end cap, connecting bolts and fastening bolts. The ball screw threaded rod serves as a push-pull rod to be supported through the guide supporting seat and only be in push-pull motion axially, the ball screw nut is supported and limited by the ball bearing and can only be in rotating motion, and the superelastic shape memory alloy wires penetrate space between a through hole of the ball screw nut and a through hole of the fixing plate and are clamped and fixed through the clamps. A ball screw is utilized to convert axial linear motion into rotating motion so as to amplify displacement stroke of the shape memory alloy wire, energy-consuming effect is improved remarkably, and the displacement rotation amplifying type shape memory alloy damper has the advantages of self-resetting, simple structure, safety, reliability, convenience for actual application and the like and can be applied to seismic resistance and vibration reduction of structures like high-rise buildings and large-span bridges.
Displacement rotation amplifying type shape memory alloy damper
The invention discloses a displacement rotation amplifying type shape memory alloy damper which comprises superelastic shape memory alloy wires, a ball screw threaded rod, a ball screw nut, a guide supporting seat, a fixed retaining block, a ball bearing, clamps, a fixing plate, a sleeve, a left end cap, a right end cap, connecting bolts and fastening bolts. The ball screw threaded rod serves as a push-pull rod to be supported through the guide supporting seat and only be in push-pull motion axially, the ball screw nut is supported and limited by the ball bearing and can only be in rotating motion, and the superelastic shape memory alloy wires penetrate space between a through hole of the ball screw nut and a through hole of the fixing plate and are clamped and fixed through the clamps. A ball screw is utilized to convert axial linear motion into rotating motion so as to amplify displacement stroke of the shape memory alloy wire, energy-consuming effect is improved remarkably, and the displacement rotation amplifying type shape memory alloy damper has the advantages of self-resetting, simple structure, safety, reliability, convenience for actual application and the like and can be applied to seismic resistance and vibration reduction of structures like high-rise buildings and large-span bridges.
Displacement rotation amplifying type shape memory alloy damper
SUN HONGXIN (author) / BIN SHUAI (author) / WANG XIUYONG (author)
2015-04-08
Patent
Electronic Resource
English
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