Lightweight filled composite protective structure for space debris

A technology for composite protective structures and space debris, which is applied in the fields of aerospace safety/emergency devices, layered products, chemical instruments and methods, etc., can solve problems such as the difficulty in developing new protective materials with high performance, and the weak industrial foundation of materials, so as to reduce the Effects of speed, damage reduction, and duration of action

Inactive Publication Date: 2012-06-27
XI AN JIAOTONG UNIV
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  • Abstract
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Problems solved by technology

The research and design of my country's current space debris protection structure is mainly to follow and imitate foreign technologies, and foreign materials with excellent performance for the protection structur...

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  • Lightweight filled composite protective structure for space debris
  • Lightweight filled composite protective structure for space debris
  • Lightweight filled composite protective structure for space debris

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Embodiment Construction

[0017] The present invention is described in further detail below in conjunction with accompanying drawing:

[0018] refer to Figure 1a , Figure 1b and figure 1 c, a light-weight filled space debris composite protection structure of the present invention, mainly comprising a first layer of protective screen 1, a second layer of protective screen corrugated board 2, high-density metal foam 3, lower-density metal foam 4 and low-density metal foam Density metal foam 5, bulkhead plate 6. The constituent materials of the corrugated plates 1 and 2 can be selected from metals such as: aluminum alloys, titanium alloys, etc.; non-metals can also be selected, such as: high-performance carbon fiber composite materials, high-performance ceramic fiber composite materials, and functionally graded composite materials; The thicknesses of 1 and 2 can be the same or different; the corrugated shape can be designed as triangular, sinusoidal and trapezoidal, etc.; metal foam layers 3, 4 and 5...

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Abstract

The invention relates to the field of the protective structures of spacecrafts, and discloses a lightweight filled composite protective structure for space debris, comprising a first layer of protective screen which is a corrugated board, a second layer of protective screen which is a corrugated board/density gradient metal foam; and spacing is left among the first layer of protective screen, the second layer of protective screen and a stiffener structure. The first layer of protective screen is in a corrugated shape, and the corrugated protective screen can effectively decompose debris cloud produced when the space debris with different incident angles collide with the protective structure at high speed, so that the damage energy is scattered. The corrugated surface plate of the second layer of protective screen decomposes the debris cloud again produced when the space debris collide with the first layer of protective structure, and a density gradient metal foam filling layer can further crush and melt the hit space debris, reduce the speed of the cloud debris, and minimize the damage to the external structure of a spacecraft and a sub-system.

Description

Technical field: [0001] The invention relates to the field of space debris protection, in particular to the field of a lightweight filled high-performance space debris composite protection structure. Background technique: [0002] In order to meet the needs of the International Space Station to protect space debris, the aerospace structures of countries such as the United States, Russia, the European Space Agency, and Japan have developed protective materials and structures with different properties. my country is implementing the third phase of the space manned project, which not only has higher requirements for the protective performance of the space debris protective structure, but also has strict restrictions on the quality of the protective structure. This requires the development of a space debris protection structure that is lightweight and has excellent protection performance. The most important physical feature that threatens the safety of spacecraft is the mechani...

Claims

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Application Information

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IPC IPC(8): B64G1/52B32B3/28B32B15/04B32B9/04
Inventor 秦庆华王铁军王正锦
Owner XI AN JIAOTONG UNIV
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