A square grid plate with vibration isolation properties

Abstract

The invention relates to grid plates with the vibration isolation characteristic, in particular to a square grid plate with the vibration isolation characteristic. The square grid plate with the vibration isolation characteristic aims to solve the problem that an existing grid plate of a honeycomb structure does not have the vibration isolation and sound isolation functions. The square grid plate with the vibration isolation characteristic comprises an upper skin, a locally resonant type photonic crystal vibration isolation assembly and a lower skin; the upper skin is arranged above the lower skin; the locally resonant type photonic crystal vibration isolation assembly connected with the upper skin and the lower skin in a gluing mode is arranged between the upper skin and the lower skin; the locally resonant type photonic crystal vibration isolation assembly is composed of a plurality of locally resonant type photonic crystal units which are evenly distributed in the transverse direction and the longitudinal direction periodically; the adjacent locally resonant type photonic crystal units are connected through glue; each locally resonant type photonic crystal unit is of a regular prism structure with local oscillators on side faces; each local oscillator is of an annular structure with the inner layer and the outer layer connected into a whole through glue; the local oscillators are connected on a locally resonant type photonic crystal vibration isolation regular prism framework base body through glue. The square grid plate with the vibration isolation characteristic is used for vibration isolation and sound isolation.

Description

technical field [0001] The invention relates to a vibration isolation plate with vibration isolation characteristics, belonging to the technical field of vibration isolation and noise reduction. Background technique [0002] Various vibration problems exist in the machinery industry and other industrial sectors. Vibration isolation (referred to as vibration isolation) is the most widely used vibration reduction technology in vibration control. Its essence is to add a subsystem between the vibration source and the system. (Vibration isolator), from an energy point of view, vibration isolation is to change the energy spectrum structure of the vibration source exciting the system to reduce the energy passing through the frequency to suppress vibration. An important feature of phononic crystals is their acoustic bandgap, that is, phononic crystals are functional materials or structures composed of two or more elastic media with periodic structure and elastic wave bandgap charact...

AI Technical Summary

Problems solved by technology

[0003] However, the currently used honeycomb structure grid panels do not have the performance of vibration isolation and sound insulation, and cannot achieve the function of vibration isolation and noise reduction.

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