Network cable skin strength-bearing material

A cable net and skin technology, applied in the direction of layered products, etc., can solve the problems of heavy weight of the skin bearing material, difficult shape control, inability to withstand high pressure, etc., to achieve high rigidity and meet the requirements of wing shape stability , the effect of reducing weight

Inactive Publication Date: 2012-08-01
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention aims to solve the problems that the skin load-bearing materials used in existing inflatable structures such as stratospheric airships are heavy in weight, low in load-carrying capacity, unable to withstand high pressure inside and difficult to control the shape, etc., and the proposed cable-net skin load-bearing material

Method used

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  • Network cable skin strength-bearing material
  • Network cable skin strength-bearing material
  • Network cable skin strength-bearing material

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specific Embodiment approach 1

[0028] Specific Embodiment 1: The load-bearing material of the cable-net skin in this embodiment includes a film layer 9, a cable-net layer 10 and a tape layer 11, the cable-net layer 10 is arranged on the film layer 9, and the tape layer 11 is arranged on the cable-net layer 10, a film layer-cable net layer-tape layer structure is formed, the film layer 9 and the cable net layer 10 are bonded by the tape layer 11, and the cable net layer 10 is woven from fiber tow.

[0029] The cable-net skin load-bearing material of this embodiment has the characteristics of light weight, high rigidity and strong bearing capacity, and can carry a larger payload, and its equivalent elastic modulus is larger than that of a film with the same thickness. As a flexible composite material, it can meet the requirements of aircraft with high configuration requirements, and can also be folded efficiently with little loss of mechanical properties. In addition, limited to the internal pressure requirem...

specific Embodiment approach 2

[0030] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the cable net skin load-bearing material also includes a second film layer 12, and the second film layer 12 is arranged on the tape layer 11 to form a film layer- Cable net layer-tape layer-film layer structure, the second film layer 12 and the tape layer 11 are bonded by epoxy resin. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0031] Specific embodiment three: this embodiment is different from specific embodiment one or two in that: the film layer is a polyurethane film (also known as PU film, polyurethane film) or polyester film ( Also known as polyethylene terephthalate film, PET film) or polyimide film. Others are the same as in the first or second embodiment.

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Abstract

A network cable skin strength-bearing material relates to skin strength-bearing materials and solves the problems that the skin strength-bearing materials used by the existing air-inflating structure including a stratospheric airship are large in weight and low in bearing capacity, the inner portion of the materials cannot bear high pressure, the shape can not be controlled easily and the like. The network cable skin strength-bearing material comprises a membrane layer, a network cable layer and an adhesive tape layer, wherein the network cable layer is one of six weaving structures weaved by fiber tows. The network cable skin strength-bearing material has the advantages of being light, large in rigidity, strong in bearing strength and capable of bearing larger effective loading, and the equivalent elastic modulus of the material is larger than that of a film with the same thickness. As a soft composite material, the material can meet high configuration requirements of aircrafts and can be conducted with efficient folding without losing mechanical property. The network cable skin strength-bearing material can be used in the field of aerospace and the like and is particularly suitable for outer surfaces of aviation spacecrafts with large dimension.

Description

technical field [0001] The invention relates to a load-bearing material for skins. Background technique [0002] At present, existing inflatable structures such as stratospheric airships have problems such as heavy weight, low load-carrying capacity, inability to withstand high pressure inside, and difficult shape control. As a result, the load and working height of the stratospheric airship are limited. With the rapid development of space applications such as aerospace and deep space exploration, the demand for lightweight deployable space structures is becoming more and more urgent. Stratospheric airships need to fly at high altitudes, so they are required to be light in weight and their internal pressure to achieve the conformal effect of the inflatable structure. Contents of the invention [0003] The invention aims to solve the problems that the skin load-bearing materials used in existing inflatable structures such as stratospheric airships are heavy in weight, low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/24B32B7/12
Inventor 王长国张磊刘远鹏兰澜杜振勇谭惠丰
Owner HARBIN INST OF TECH
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