Rigid-flexible out-of-phase and microstructure coupling material, and preparation method and application thereof

Abstract

The invention relates to a rigid-flexible out-of-phase and microstructure coupling material, and a preparation method and application thereof. The rigid-flexible out-of-phase and microstructure coupling material comprises a substrate made of a flexible material, the substrate comprises a plurality of cylindrical volume units, a spiral structure body made of a rigid material is arranged in each volume unit, each spiral structure body is composed of a plurality of spiral bodies arranged in the circumferential direction of the axis of one corresponding cylindrical unit, the at least three adjacent cylindrical units are encircled to form a pore; and in addition, the invention further relates to a preparation method and application of the rigid-flexible out-of-phase and microstructure couplingmaterial. The rigid-flexible out-of-phase and microstructure coupling material provided by the embodiment of the invention is designed and prepared by taking arthropod crustacean as a biological model, has good vibration and noise reduction effects on the premise of considering both strength and damping, can be used as a novel water-lubricated bearing material, can be manufactured through 3D printing, and is suitable for large-scale production and use.

Description

technical field [0001] The present application relates to the field of materials, in particular, to a rigid-flexible out-of-phase and microstructure coupling material, its preparation method and its application. Background technique [0002] Water lubricated bearing is a kind of bearing with natural water as lubricating medium. It has the advantages of clean and pollution-free, energy saving, low calorific value and high cooling efficiency, and has been widely used in ships. At present, underwater vehicles in developed countries have reached the level of silence. In contrast, the water-lubricated bearing materials of most ships in my country mainly rely on imports from abroad. The structural design basically imitates foreign products, and its key core technologies are strictly controlled. The blockade has severely restricted my country's competitiveness in this field. Establishing its own theoretical knowledge system in water-lubricated bearings and conducting self-research a...

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Problems solved by technology

[0003] Studies have shown that through water groove distribution, surface texture, polymer damping layer, etc., water lubricated tail bearings can reduce the energy transfer level of shafting vibration to a certain extent, but this is mainly concentrated in the low frequency response area, while underwater vehicles Under special working conditions such as low speed and heavy load, high-frequency beeping and howling sounds are often generated, and the frequency of the vibration source is wide and complex.

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