Wide-band-gap efficient vibration isolation structure

Abstract

The invention discloses a wide-band-gap efficient vibration isolation structure, and belongs to the technical field of vibration isolation devices. The wide-band-gap efficient vibration isolation structure comprises a periodic vibration isolation structure body, wherein the vibration isolation structure body comprises a plurality of vibration isolation sleeve pieces, and each vibration isolation sleeve piece comprises a plurality of vibration isolation components; each vibration isolation component comprises a base plate, an elastic base body and a resonance unit, wherein the elastic base bodyand the resonance unit are arranged on the base plate; in each vibration isolation sleeve piece, the base plates and the elastic base bodies of the vibration isolation components are alternately connected to form the vibration isolation sleeve piece; in each vibration isolation sleeve piece, the resonance frequencies of the resonance units of the vibration isolation components are not all equal;and in the vibration isolation structure body, the base plates and the elastic base bodies of the vibration isolation sleeve pieces are alternately connected to form the periodic vibration isolation structure body. The wide-band-gap efficient vibration isolation structure has the wide-band-gap efficient vibration isolation effect and has the inhibition effect on longitudinal vibration and bendingvibration.

Description

technical field [0001] The invention relates to a wide band gap and high-efficiency vibration isolation structure, which belongs to the technical field of vibration isolation devices. Background technique [0002] Vibration isolation structures have a very wide range of applications in suppressing the transmission of equipment vibration to the surrounding environment and the impact of surrounding environment vibration on equipment. [0003] Common vibration isolation structures include rubber vibration isolators, metal spring vibration isolators, wire rope vibration isolators, etc. Due to the influence of the structure's own resonance, etc., the vibration isolation is usually difficult to reach the theoretical level, and is limited by the total stiffness of the system. In some cases It is difficult for a vibration isolation structure to work in an optimal vibration isolation state. [0004] In the field of vibration isolation and vibration reduction: when the elastic wave / v...

AI Technical Summary

Problems solved by technology

However, the common periodic layered vibration isolation structure composed of soft and light material units and hard and heavy material units is mainly regulated by the Bragg band gap mechanism, and the vibration isolation frequency band is affected by the size and quality of the structure. additional cost

The additional cost described here includes additional size cost and additional quality cost; that is, in order to achieve a higher and more ideal vibration isolation effect, it is necessary to increase the size and quality of the vibration isolation structure while ensuring the support stiffness of the vibration isolation structure. This results in a higher additional cost

[0006] In contrast, the periodic vibration isolation structure designed by the local resonance mechanism has the advantages of easy adjustment of the main action frequency and good vibration isolation effect in the action frequency band. belt), the traditional single-resonance unit type periodic vibration isolation structure often requires a large additional mass cost

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