Composite structure magnetorheological elastic body shock isolator

Abstract

The invention discloses a composite structure magnetorheological elastic body shock isolator which comprises a base, a shock isolation platform, a laminated structure, a magnetorheological elastic body, a magnetic conductor, a magnetic core, a sleeve, a coil and connecting pieces, wherein the laminated structure is formed by alternate bonding of magnetorheological elastic body sheets and pure iron sheets. The base is located at the bottommost end of the whole shock isolator; the laminated structure is mounted on a boss structure of the base; the magnetic core is mounted at the upper end of the laminated structure; the boss structure of the upper end of the base, the laminated structure and a cylindrical structure at the lower end of the magnetic core are sleeved together through the sleeve; the coil is wound on an outer circle of the sleeve; the magnetic conductor is mounted on a cylindrical structure at the lower end of the base and located at the outmost end of the radical direction of the whole shock isolator; an annular gap is arranged between the magnetic conductor and a cylindrical structure at the upper end of the magnetic core; the magnetorheological elastic body is of an annular structure and is embedded in the annular gap between the magnetic conductor and the cylindrical structure at the upper end of the magnetic core; and the shock isolation platform is located at the topmost end of the whole shock isolator and connected with the magnet core through the connecting pieces. The composite structure magnetorheological elastic body shock isolator is simple in structure, good in shock isolation controllability and high in adaptability.

Description

technical field [0001] The invention belongs to basic shock-isolation equipment, in particular to a magnetorheological elastic body shock-isolator with a composite structure. Background technique [0002] The occurrence of earthquakes is uncertain and unpredictable, and it is precisely because of this that it poses a great threat to people. The main reason for the damage caused by the earthquake is that the huge energy input by the earthquake is released in the form of waves, causing the building to shake violently and damage the components. Studies have shown that the key to seismic isolation is to isolate the source of the earthquake, not to dissipate the seismic energy. The optimal seismic isolation effect is that the deformation only occurs in the seismic isolation system or the building above the seismic isolation system moves as a whole, thereby minimizing the interstory displacement of the building. [0003] The optimal seismic isolation system should have sufficien...

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is to provide a magneto-rheological elastomer shock isolator with a composite structure, which overcomes the fact that the current magnetorheological elastomer shock The variable shear modulus or variable compressive modulus properties of rheology combine to take full advantage of the problem

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