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Novel light energy absorption and vibration reduction imitation microstructure and preparation method thereof

A micro-structured and lightweight technology, applied in spaceflight equipment, spaceflight equipment, transportation and packaging, etc., can solve the problems of easy aging due to radiation, low thermal conductivity of rubber, and limited scope of use and applicability.

Active Publication Date: 2020-02-11
INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the actual working conditions of aircraft components (such as engine pipelines, spacecraft solar panels, etc.) are more special and complex, such as facing special conditions such as ray and particle radiation, high temperature, low temperature, high pressure, and high vacuum. Easy to age, etc., so the scope of use and applicable ability are limited

Method used

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  • Novel light energy absorption and vibration reduction imitation microstructure and preparation method thereof
  • Novel light energy absorption and vibration reduction imitation microstructure and preparation method thereof
  • Novel light energy absorption and vibration reduction imitation microstructure and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment example 1

[0042] 1) Established with UG software figure 1 In the octahedron structure model (10mm×10mm×10mm), the length of the adjustment rod is 2mm, the diameter of the rod is 0.2mm, and the model is imported into the host control system of the 3D printer.

[0043] 2) Adjust the printing parameters, using laser power of 100W, scanning speed of 900mm / s, layer thickness of 0.02mm, interlayer rotation angle of 67°, and scanning distance of 0.10mm. Select the NiTi powder whose atomic percentage is Ni49%-51%, Ti49%-51%, and fill the powder into the powder box to preheat the printer and control the atmosphere of the cavity. After the preparation work is completed, start to print the structural parts until the printing is completed.

[0044] 3) Take out the print and put it in the configured chemical reagent (HNO 3 :HF:H 2 Pickling in O=1:1:2) to clean the surface oxide layer and attachments.

[0045] 4) Use Ni with a diameter of 2mm x Ti y Metal rubber balls, wherein x ranges from Ni4...

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Abstract

The invention discloses a novel light energy absorption and vibration reduction imitation microstructure and a preparation method thereof. The novel light energy absorption and vibration reduction imitation microstructure comprises a plurality of energy absorption layers which are sequentially stacked from top to bottom, each energy absorption layer comprises a plurality of energy absorption frames, and a metal rubber ball is embedded in each energy absorption frame. According to the preparation method, by reference to the mechanism for improving elastic modulus and the strength that a diamondmicro-octahedral structure is filled with an interstitial atom, the micro-new composite structure of filling a NiTi-based octahedral interstice of 3D printing with a NiTi metal rubber ball is proposed, and the elastic modulus, the strength and energy absorption efficiency of a structural part can be improved; compared with a traditional metal rubber, the structure has the advantages of radiationresistance, corrosion resistance, high and low temperature resistance, aging resistance and the like; compared with the traditional metal rubber, the structure has the advantages of high forming precision, being capable of forming a complex structure, high energy absorption efficiency and the like; and compared with a simple NiTi metal-based octahedral lattice structure, the structure has the advantages of high strength, high modulus, high energy absorption efficiency and the like.

Description

technical field [0001] The invention relates to the field of energy-absorbing and vibration-reducing imitation microstructures, in particular to a novel lightweight energy-absorbing and vibration-reduction imitation microstructure and a preparation method thereof. Background technique [0002] Aerospace and space vehicles are faced with engine vibrations, airflow impact vibrations, and even severe vibrations during landing during outer space flight, requiring the installation of a large number of vibration-damping rubbers. However, the actual working conditions of aircraft components (such as engine pipelines, spacecraft solar panels, etc.) are more special and complex, such as facing special conditions such as ray and particle radiation, high temperature, low temperature, high pressure, and high vacuum. Easy to age, etc., so the scope of use and applicable ability are limited. Contents of the invention [0003] In order to overcome the defects of the energy-absorbing and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/11B33Y10/00B33Y80/00B64G1/22
CPCB22F3/1115B33Y10/00B33Y80/00B64G1/22
Inventor 张圣旺杨琴陈捷葛继强王英英王国伟沈显峰黄姝珂
Owner INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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