Flexible ultralow-frequency vibration isolator

Abstract

The invention discloses a flexible ultralow-frequency vibration isolator which at least comprises a set of vibration isolation units. Each vibration isolation unit comprises a lower supporting seat and an upper supporting seat, wherein the lower supporting seat and the upper supporting seat are supported by a plurality of spring pieces, the lower ends of the spring pieces are located in the lower supporting seat, and the upper ends of the spring pieces are located in the upper supporting seat. The top face of each upper supporting seat is provided with a structure capable of being overlapped with another vibration isolation unit. The ultralow-frequency vibration isolator can be formed by stacking a plurality of vibration isolation units, the resonant frequency can be further reduced, the band gap depth can be further increased, the vibration isolation bandwidth can be further expanded, the resonant frequency can be further reduced, and the ultra-low-frequency vibration isolation effect is achieved.

Description

technical field [0001] The invention belongs to the field of mechanical vibration reduction and isolation, in particular to a flexible ultra-low frequency vibration isolator. Background technique [0002] Vibration isolation refers to inserting an appropriate vibration isolation device between the vibration source and the vibration-isolated system to isolate the direct transmission of vibration. Its essence is to install a vibration isolator between the vibration source and the vibration-isolated system from the perspective of energy. Look, vibration isolation is to suppress vibration by changing the energy spectrum structure of the vibration source excited by the vibration isolation system to reduce the energy passing through the frequency. [0003] Front low frequency vibration isolation is still a research hotspot and difficulty in the field of vibration engineering. Vibration isolation methods are mainly divided into passive vibration isolation and active vibration isol...

AI Technical Summary

Problems solved by technology

However, the current quasi-zero-stiffness vibration isolator has an independent structure, which limits the reduction of its resonance frequency and the depth of the band gap, and the existing quasi-zero-stiffness vibration-isolator is processed and assembled by each part separately, so there are certain limitations. Installation error, vibration isolation effect is relatively reduced

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