Spiral hole way magnetorheological mud damper

Abstract

The invention discloses a spiral hole way magnetorheological mud damper. Cylinder sealing covers (2) are arranged at two ends of a cylinder shell (4) of the damper; a piston (10) is arranged in the cylinder shell (4); two ends of the piston (10) are respectively connected with pull rods (1); the outer ends of the pull rods (1) penetrate through the cylinder sealing covers (2); and a magnet exciting coil (6) is arranged at the periphery of the cylinder shell (4). A spiral hole way (11) is formed in the piston (10); cavities (13) are respectively formed between the piston (10) and the cylinder sealing covers (2) at two ends of the cylinder shell (4); and magnetorheological mud is filled in the cavities (13) and the spiral hole way (11) of the piston (10). A magnetorheological mud channel ofthe spiral hole way magnetorheological mud damper is positioned in the piston, and an included angle thereof with a magnetic field is large to achieve good control effect; the magnet exciting coil iswound outside a cylinder without directly contacting with the piston and the magnetorheological mud to achieve convenience to replace and good durability; and the magnet exciting coils with differentturns numbers can be replaced according to the demands of actual conditions to achieve wide applicability. The magnetorheological mud is high in shearing yield strength and excellent in settlement resistance.

Description

technical field [0001] The invention relates to a magneto-rheological mud damper, which belongs to the technical field of vibration isolation devices. Background technique [0002] With the rapid development of economy and continuous progress of science and technology, high-rise buildings, high-rise structures, long-span structures and other structural forms are more and more favored by people. Compared with traditional multi-storey buildings, the above-mentioned structures will have a greater structural response to the action of dynamic loads (such as strong winds and earthquakes), affecting the safety and usability of these large structures. Therefore, how to reduce the wind vibration or earthquake response of large structures is a hot topic now. The building structure usually enhances its own bearing capacity and stiffness or adopts energy dissipation and shock absorption measures in the structure to resist the action of dynamic load. In the past ten years, magnetorheol...

AI Technical Summary

Problems solved by technology

Due to the existence of the above problems, the magnetorheological mud damper has been greatly restricted in practical engineering applications, so it is urgent to design a damper with a new structure so that the magnetorheological mud can play a better role

Images