Special-purposed cellular composite material used for small unmanned air vehicle

A technology for small unmanned aerial vehicles and composite materials, applied in the aviation field, can solve problems such as undiscovered public documents, and achieve the effects of small thermal expansion and contraction deformation, high surface flatness, and high connection strength

Inactive Publication Date: 2011-11-16
天津全华时代航天科技发展有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0005] Through searching, no publications identical with this patent application have been found

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  • Special-purposed cellular composite material used for small unmanned air vehicle
  • Special-purposed cellular composite material used for small unmanned air vehicle

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Embodiment Construction

[0019] The present invention will be further described in detail through specific embodiments below in conjunction with the accompanying drawings. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0020] A special honeycomb composite material for small drones, see figure 1 , a layered composite structure made of panels and honeycomb interlayers bonded by adhesives. Among them, the panel includes: the outer panel is composed of epoxy varnish 1, topcoat 2, and outer glass fiber layer 3, the inner panel is composed of inner glass fiber layer 5, carbon fiber mixed cloth layer 6, and the honeycomb interlayer 4 is fixed on the outer panel. Between the outer glass fiber layer of the inner panel and the inner glass fiber layer of the inner panel. The cross-sectional structure of the composite material is as follows from inside to outside: carbon fiber mixed cloth layer, inner glass fiber layer, honeycomb...

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Abstract

The invention relates to a special-purposed cellular composite material used for a small unmanned air vehicle (UAV). The material is a layered material comprising surface panels and a cellular interlayer, which are bound by a binding agent. The surface panels comprise an outer surface panel and an inner surface panel. The layered composite structure is composed of the outer surface panel, the cellular interlayer and the inner surface panel. The outer surface panel is composed of orderly arranged layers of an epoxy overprint varnish layer, a surface paint layer and an outer glass fiber layer. The inner surface panel is composed of orderly arranged layers of an inner glass fiber layer and a carbon fiber blended fabric layer. The cellular interlayer is fixed between the outer glass fiber layer of the outer surface panel and the inner glass fiber layer of the inner surface panel. The layers are bound by thermosetting resin with a mold. After the materials are solidified, a finished product is obtained. The composite material provided by the invention has advantages of high integral joint strength, light weight, high bending rigidity, good flight wind-pressure resistance, good sound insulation effect, good heat insulation effect, and good anti-resonance effect. The material is fireproof, damp-proof, wear resistant, corrosion resistant, and sand and dust resistant. After shaping, the surface flatness of the product is high, the deformation due to thermal expansion and contraction is small, and cellular recesses are not obvious.

Description

technical field [0001] The invention belongs to the field of aviation and relates to unmanned aerial vehicles, in particular to a special honeycomb composite material for small unmanned aerial vehicles. Background technique [0002] my country's small-scale UAV industry started relatively late. The design process generally refers to the design of foreign active-duty UAVs in terms of shape, size and equipment. In terms of body weight, structural design and material strength, it is similar to similar foreign products in the 1990s, without much breakthrough. [0003] In recent years, new technologies and new materials in my country's composite material industry have developed rapidly. Composite materials are a new type of material, and their application on aircraft is in the development stage, because of their light weight, high impact strength, and small deformation due to temperature differences. ("Creep" caused by temperature differences), anti-aging (extended service life), ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/12B32B15/14B32B15/20B32B17/02B32B17/12B32B17/10B32B27/08B32B27/36B32B27/40B32B7/12
Inventor 田凯权军
Owner 天津全华时代航天科技发展有限公司
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