A coupling material with rigid-flexible heterogeneous phase and microstructure, its preparation method and application

Abstract

A rigid-flexible out-of-phase and microstructure coupling material, its preparation method and application. The rigid-flexible out-of-phase and microstructure coupling material includes a substrate made of a flexible material. The substrate includes a plurality of cylindrical volume units, and each volume unit is provided with a helical structure made of a rigid material. The helical structure is formed along the The cylindrical unit is composed of a plurality of spirals arranged in the circumferential direction of the axis of the cylindrical unit, and at least three adjacent cylindrical units are surrounded to form pores. In addition, the present application also relates to the preparation method and application of the above rigid-flexible out-of-phase and microstructure coupling material. The rigid-flexible out-of-phase and microstructure coupling material provided in this example is designed and prepared using arthropod carapace as a biological model. It has good vibration and noise reduction effects on the premise of both strength and damping, and can be used as a new type of water lubrication Bearing materials are used and can be manufactured by 3D printing, which is suitable for mass 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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