Photonic crystal damping material plate

A technology of phononic crystals and damping materials, which is applied in the direction of lamination devices, laminations, and layered products, etc., can solve the problems of phononic crystals controlling low frequencies, achieve convenient use, reduce the risk of first-order resonance, and improve comfort. and safety effects
CN109353081AActive Publication Date: 2019-02-19LIUZHOU XINGTA IND & TRADE
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
LIUZHOU XINGTA IND & TRADE
Publication Date
2019-02-19

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Abstract

The invention discloses a photonic crystal damping material plate, comprising a damping layer and a photonic crystal structural layer. The damping layer is made by combining a hot melt damping layer and a magnetic damping layer; the damping layer is provided with a plurality holes; the photonic crystal structural layer is embedded between the hot melt damping layer and the magnetic damping layer and is, in the holes, parallel to the damping layer. The photonic crystal structural layer is made by connecting mass units and elastic units; the elastic units are embedded between the hot melt damping layer and the magnetic damping layer; both the mass units and the elastic units are arranged in the holes and are parallel to the damping layer. Photonic crystal material is used herein for the first time in the field of automobiles to control first-order resonance of an automobile body; the photonic crystal damping material and an existing damping material are applied in parallel and are seamless butted; the photonic crystal damping material is applied practically for the first time; the requirement on low frequency in automobile damping denoising project design is met; the application blank for low-frequency damping materials is filled.
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Description

technical field

[0001] The invention belongs to the field of automobile shock-absorbing and noise-reducing engineering material preparation, and in particular relates to a phononic crystal damping material plate. Background technique

[0002] Resonance refers to the situation where a physical system vibrates at a specific frequency with a larger amplitude than other frequencies. These specific frequencies are called resonance frequencies. The harm caused by resonance is also well known. For example, the collapse of the Mann River Bridge was caused by the first-order resonance. Similarly, the first-order resonance also has a destructive effect on the structure of the car body. However, traditional damping materials have very little effect on the first-order control of the vehicle body.

[0003] Phononic crystals are a new type of functional material formed by elastic solids periodically arranged in another solid or fluid medium. At present, in terms of vehicles, there is no...

Claims

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