Vibration reducer based on composite damping mechanism

Abstract

The invention discloses a vibration reducer based on a composite damping mechanism, and belongs to the field of vibration reduction and vibration isolation for mechanical vibration. The vibration reducer based on the composite damping mechanism comprises a cylindrical cavity body and a cover body arranged above the cylindrical cavity body and detachably connected with the cylindrical cavity body,wherein a central stress rod is arranged at the middle part of the cylindrical cavity body, a hole capable of enabling the upper end of the central stress rod to penetrate through is formed in the cover body, and a locking nut is further arranged on the central stress rod in a sleeved manner; a metal wire porous material is filled into the cylindrical cavity body, a viscous medium is further filled into the other spaces of the chamber of the cylindrical cavity body, and the viscous medium flows into pores of the metal wire porous material; and a porous plate is arranged above he metal wire porous material. Under the action of a vibration force, friction damping is generated among the metal wires of the metal wire porous material, the deformation of the metal wire porous material enables the flowing of the viscous medium in the pores to generate small-pore throttle damping, and the friction damping and the small-pore throttle damping form a composite damping effect, so that a damping vibration reduction effect is acted on the vibration of the central stress rod of the vibration reducer.

Description

technical field [0001] The invention belongs to the field of vibration reduction and isolation of mechanical vibration, and in particular relates to a vibration absorber based on a compound damping mechanism. Background technique [0002] Shock absorbers are an important part of the overall composition of modern mechanical motion power systems (such as vehicles, aircraft, etc.), and their main function is to reduce the adverse effects of vibration on the mechanical structure during operation, which has an important role in improving safety and comfort. Important protection functions, such as hydraulic dampers for aircraft landing gear, damping and shock absorbers for suspension systems on automobiles, and soft rubber shock absorbers for medical equipment. In the development of modern society, with the continuous improvement of people's performance requirements for the safety and comfort of mechanical systems during operation, the shock absorption and vibration isolation perf...

AI Technical Summary

Problems solved by technology

From the reported vibration reduction mechanism, the structure of viscous throttling damping is generally more complicated, and it is not combined with other damping in application.

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