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Fiber rod filling corrugated sandwich structure

A sandwich structure and fiber rod technology, which is applied in the field of space debris protection, can solve the problems of arduous spacecraft protection tasks and the difficulty of the protection structure to meet the protection requirements, and achieve the effect of significant protection effect, enhanced overall strength, and reduced speed.

Inactive Publication Date: 2014-09-10
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These traditional protective structures have achieved certain results in the protection of space debris, but as the space debris environment deteriorates day by day, the task of spacecraft protection becomes more and more difficult, and traditional protective structures have been difficult to meet the protection requirements

Method used

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  • Fiber rod filling corrugated sandwich structure

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Effect test

Embodiment 1

[0026] refer to figure 1 (a), a fiber rod filled corrugated sandwich structure, including an outer plate 1, an inner plate 3, a corrugated plate 2 arranged in the middle of the inner and outer plates, and a corrugated plate arranged in a cavity surrounded by the inner and outer plates and the corrugated plates Cylindrical fiber rod 4 and resin 5 filled in the void. The material of the outer plate 1, the corrugated plate 2 and the inner plate 3 can be light alloy, titanium alloy; the thickness of the outer plate 1, the inner plate 3 and the corrugated plate 2 can be the same; the corrugated shape of the corrugated plate is triangular The material of the fiber rod 4 is carbon fiber; the filling resin 5 is a low-density epoxy resin; the outer plate 1, the corrugated plate 2 and the inner plate 3 are bonded together by a special adhesive, and the fiber rod 4 is inserted into the inner and outer plates and In the cavity surrounded by the corrugated board, the low-density resin 5 i...

Embodiment 2

[0028] refer to figure 1 (b), a fiber rod filled corrugated sandwich structure, comprising an outer flat plate 1, an inner flat plate 3, a corrugated plate 2 arranged in the middle of the inner and outer flat plates, and a corrugated plate arranged in the cavity surrounded by the inner and outer flat plates and the corrugated plates Cylindrical fiber rod 4 and resin 5 filled in the void. The constituent materials of the outer plate 1, the corrugated plate 2 and the inner plate 3 can be light alloys, such as aluminum alloy; the thickness of the outer plate 1, the inner plate 3 and the corrugated plate 2 can be the same; the corrugated shape of the corrugated plate is trapezoidal; the fiber rod 4 is basalt fiber; the filling resin 5 is low-density epoxy resin; the outer plate 1, the corrugated plate 2 and the inner plate 3 are bonded together by a special adhesive, and the fiber rod 4 is inserted into the inner and outer plates In the cavity surrounded by the corrugated board, ...

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Abstract

The invention discloses a fiber rod filling corrugated sandwich structure. The structure comprises an outer layer flat plate, an inner layer flat plate, a corrugated plate, fiber rods and filling resin, wherein the outer layer flat plate is parallel to the inner layer flat plate; the corrugated plate is arranged between the outer layer flat plate and the inner layer flat plate; the extending direction of corrugation of the corrugated plate is parallel to the outer layer flat plate; the fiber rods are arranged in cavities surrounded by the outer layer flat plate and the corrugated plate and cavities surrounded by the inner layer flat plate and the corrugated plate, and the cavities are all filled with the filling resin. The structure disclosed by the invention can effectively withstand the impact damage of space debris to the outer structure and inner facilities of a spacecraft, so as to play a favourable protective effect and effectively reduce the additional protection quality.

Description

technical field [0001] The invention relates to the field of space debris protection, in particular to a fiber rod filled corrugated sandwich structure. Background technique [0002] With the rapid development of aerospace technology, human space activities are becoming more and more frequent, resulting in an increasingly complex space environment, and the number of space debris is also increasing year by year. The average relative velocity of impact between space debris and spacecraft can reach 10 km / s, and the mechanical damage effect caused by ultra-high-speed impact seriously threatens the safe operation of spacecraft in orbit. Therefore, the design of spacecraft protective structure is the focus of research in the field of space debris protection. [0003] At present, the space debris protection structure commonly used at home and abroad is mainly based on the Whipple protection structure proposed by Whipple in 1947. So far, protection configurations such as single bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/52B64G1/56
Inventor 郭锐周昊南博华杨天豪申世军
Owner NANJING UNIV OF SCI & TECH
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