Self-resetting disc spring and mass rotating wheel composite magnetorheological fluid damper

Abstract

The invention relates to a self-resetting disc spring and mass rotating wheel composite magnetorheological damper which mainly consists of an energy dissipation module and a self-resetting module in parallel combination, wherein an outer cylinder body is fixedly provided with two high-strength screw rods; two mass rotating wheels are arranged in a sealed cavity; the two mass rotating wheels are freely arranged on the high-strength screw rods in a sleeving manner through threads matched with the high-strength screw rods; the two mass rotating wheels can move along the axes of the high-strength screw rods while rotating around the high-strength screw rods; the part, in the sealed cavity, of a connecting rod is sleeved with a permanent magnet ring, magnetic conduction rings and magnetic isolation rings; the sealed cavity is filled with magnetorheological fluid; the parts, on the outside of the sealed cavity, of the connecting rod are separately and freely sleeved with a left disc spring and a right disc spring; and the two ends of the left disc spring and the two ends of the right disc spring are freely sleeved with permanent magnet rings and disc spring end plates. The self-resetting disc spring and mass rotating wheel composite magnetorheological damper provides certain rigidity and strength and stable energy dissipation capacity for a structure, and has an excellent self-resetting function.

Description

technical field [0001] The invention relates to a self-resetting disc spring-mass runner composite magnetorheological fluid damper, which belongs to the technical field of shock absorption and isolation in civil engineering. Background technique [0002] Earthquake disasters are characterized by suddenness, low predictability, and strong destructiveness. They are considered to be one of the most serious natural disasters faced by human beings. It will cause great damage to the structure and seriously endanger people's lives and property safety. my country is one of the earthquake-prone countries, so it is very important to reduce the earthquake damage of various buildings and infrastructure. The current structure mainly resists earthquakes by improving its own stiffness and strength, and dissipates seismic energy. When a strong earthquake acts, even if the overall integrity of the structure is maintained, the deformation is too large and some components are seriously damage...

AI Technical Summary

Problems solved by technology

However, the traditional magnetic induction damper usually relies on the power supply. In an earthquake, especially in the case of a large earthquake, the earthquake is extremely destructive, and the power supply may fail, resulting in the failure of the damper and reducing the reliability of the shock absorption system.

In addition, the traditional damper only has the function of energy consumption and does not have the function of self-resetting

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