High-damping fluid damper

Abstract

The invention provides a high-damping fluid damper, and belongs to the technical field of vibration reduction. The high-damping fluid damper comprises a high-damping structural part, viscous fluid, an upper high-rigidity panel and a lower high-rigidity panel, the high-damping structural part is of an integrally-machined structure with a gap in the middle and is composed of a damping disc and a buffering cavity, the buffering cavity is connected with the damping disc, the damping disc is composed of a plurality of inner and outer damping disc structural parts, and the damping disc structural parts are connected through hole channels. Viscous fluid enters a structure inner cavity through an oil inlet, and the upper high-rigidity panel and the lower high-rigidity panel are pasted to the upper end face and the lower end face of the high-damping structural part respectively. When the upper end face of the high-damping fluid damper is subjected to compression load, the upper end face moves downwards, the structure deforms transversely, the size of a gap in the middle of the structure is changed, viscous fluid in an inner cavity of the structure is forced to flow towards outer cavities on the two sides, damping force is output, mechanical energy is converted into internal energy, and therefore broadband high-damping dynamic vibration reduction and isolation are achieved. The damper is simple in structure, high in damping efficiency, capable of effectively reducing cost and high in practicability.

Description

technical field [0001] The invention relates to the technical field of vibration reduction, in particular to a high-damping fluid damper. Background technique [0002] In major engineering fields such as aerospace, biomedicine, civil engineering and precision instruments, vibration control has always been one of the research focuses of dynamic problems. With the development of engineering science and technology, the dynamic environment in many engineering fields is more complex, which seriously affects the operation accuracy of related equipment, and even causes irreversible structural damage. The passive vibration isolation device does not require additional energy to drive, which reduces the complexity and production cost of the device. It is currently the most widely used vibration control device in various engineering fields. Among them, the viscous damping vibration isolator, as a passive vibration isolation device, can generate damping energy dissipation effect throug...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a high-damping fluid damper. As a passive vibration control device, the structure is simple, easy to replace, and has good sealing performance, and the damping characteristics can be adjusted by changing the viscosity of the fluid. , to solve the problem of poor low-frequency vibration isolation performance in the prior art

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