Composite material bird impact resistant baffle for airplane nose
A composite material board and composite material technology, which is applied in the field of composite material bird strike baffles for aircraft noses, can solve the problems of relatively large influence on the maintainability of the radome, blocking the disassembly path of the radome, and unfavorable aircraft economy, etc. Achieve the effects of improving maintainability, strong impact resistance, and improving rigidity
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Embodiment 1
[0027] The anti-bird strike baffle of composite material for aircraft nose is composed of tooth plate 1 and composite material plate 2, such as figure 1 shown.
[0028] The dental plate 1 is made of a 2024-T3 aluminum alloy plate with a thickness of 1.5mm, and the protrusions 3 arranged continuously are distributed on the surface, such as figure 2 shown. The protrusion 3 is a strip structure with an inverted V-shaped cross-section and a sharp-edged structure at the top with a cone angle of 135°. The dental plate 1 is provided with a connection hole, and the surrounding area of the hole is a planar structure.
[0029] The composite material board 2 is composed of three layers, the first and second layers are sandwich panels, which are formed by bonding the upper and lower skins and the honeycomb sandwich, and the third layer is an aramid fiber composite material board. Among them, the upper and lower skins of the first layer of sandwich panels are aramid fiber composite p...
Embodiment 2
[0033] The anti-bird-strike baffle of composite material for aircraft nose is composed of a tooth plate 1 and a composite material plate 2.
[0034] The dental plate 1 is made of a 2024-T3 aluminum alloy plate with a thickness of 1.2mm, and the protrusions 3 arranged continuously are distributed on the surface. The protrusion 3 is a strip structure with an inverted V-shaped cross section and a rounded top with a cone angle of 120°. The dental plate 1 is provided with a connection hole, and the surrounding area of the hole is a planar structure.
[0035] The composite material board 2 is composed of four layers, the first and third layers are sandwich panels, which are formed by bonding upper and lower skins and honeycomb sandwiches, and the second and fourth layers are aramid fiber composite material boards. The upper and lower skins of the two-layer sandwich panels are carbon fiber composite panels, made of unidirectional carbon fiber cloth and epoxy resin, with a density ...
Embodiment 3
[0039] The anti-bird-strike baffle of composite material for aircraft nose is composed of a tooth plate 1 and a composite material plate 2.
[0040] The dental plate 1 is made of a 2024-T3 aluminum alloy plate with a thickness of 1mm, and the protrusions 3 arranged continuously are distributed on the surface, such as image 3 shown. The protrusion 3 is a pyramid structure, the upper tip is lower, the bottom is square, the side length is 44mm, and the angle between the opposite cone surfaces is 90°. The tooth plate 1 is provided with a connecting hole, and the surrounding area of the hole is a planar structure.
[0041] Composite material board 2 consists of three layers, all of which are sandwich panels, such as Figure 4 As shown, it is formed by bonding the upper and lower skins and the honeycomb sandwich. Among them, the upper and lower skins of the first sandwich panel are polyethylene fiber composite panels, made of polyethylene fiber orthogonal cloth and epoxy resin,...
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