A filling type whipple protective structure based on basalt fiber fabric and its manufacturing method

A technology of basalt fiber and protective structure, applied in the direction of aerospace safety/emergency devices, layered products, etc., can solve problems such as inaccessibility, and achieve the effect of strong engineering application potential

Active Publication Date: 2014-08-13
BEIJING INST OF SPACECRAFT SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the filling layer materials used abroad are currently not available in China, so it is necessary to independently develop and select filling layer materials with excellent performance

Method used

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  • A filling type whipple protective structure based on basalt fiber fabric and its manufacturing method

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Experimental program
Comparison scheme
Effect test

Embodiment

[0022] Such as figure 1 A filled Whipple protective structure based on basalt fiber fabric is shown, the protective structure includes: a buffer screen 1, a filling layer and a back wall 4, the filling layer being located between the buffer screen 1 and the back wall 4;

[0023] The filling layer is divided into two parts: basalt fiber fabric 2 and Kevlar fiber fabric. The basalt fiber fabric 2 and Kevlar fiber fabric 3 are stacked together. The basalt fiber fabric 2 is opposite to the buffer screen 1. The stretch fiber fabric 3 is opposite to the rear wall 4, and the distance between the buffer screen 1 and the filling layer, and between the filling layer and the rear wall 4 is 3.5 cm.

[0024] The basalt fiber fabric 2 and the Kevlar fiber fabric 3 have three layers.

[0025] The thickness of the buffer screen 1 is 1 mm, and the thickness of the rear wall 4 is 2.5 mm.

[0026] Said basalt fiber fabric 2, single-layer fiber density≤2.65g / cm 3 , Fiber tensile modulus ≥70GPa, fiber te...

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Abstract

The invention discloses a filled Whipple protection structure based on basalt fiber fabric, which belongs to the field of passive protection research on space debris. The protective structure includes a buffer screen, a filling layer and a back wall, the filling layer is located between the buffer screen and the back wall, and the buffer screen, the filling layer and the back wall are fixed by a frame; the filling layer is divided into basalt fiber fabric and Kevlar fiber Two parts of the fabric, wherein the basalt fiber fabric is opposite to the buffer screen, and the Kevlar fiber fabric is opposite to the back wall, and the distance between the buffer screen and the filling layer, and between the filling layer and the back wall is 3 to 10 cm. The debris cloud formed by this protective structure itself is a powdery substance with a large diffusion range, and its damage effect on the aluminum back wall is much smaller than the debris cloud formed by the latter. engineering application potential.

Description

Technical field [0001] The invention belongs to the field of space debris passive protection research, and is mainly used to improve the spacecraft's ability to resist the impact of space debris and improve the survival probability of the spacecraft in the space debris environment. Background technique [0002] Space debris can cause many types of damage to spacecraft. The type and degree of damage depends on the size, configuration, working time, and the mass, density, velocity, and impact direction of the spacecraft. Such impact damage includes perforation of wall panels, rupture of pressure vessels, degradation of porthole glass, reduced thermal control performance, and leaks in sealed cabins. [0003] In response to the threat of space debris impact, the common practice in aerospace engineering is: first assess the spacecraft’s space debris impact risk, and then adopt certain protective measures to improve the spacecraft’s ability to withstand the impact of space debris. The pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/52B32B5/24
Inventor 闫军郑世贵韩增尧单立
Owner BEIJING INST OF SPACECRAFT SYST ENG
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