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Pressure bulkhead

A technology of pressure chamber and laminated body, applied in the direction of fuselage bulkhead, fuselage, weight reduction, etc., can solve the problems of increase in mass and volume, and achieve the effect of weight reduction, cost reduction and cost saving

Pending Publication Date: 2022-03-04
CITD ENG & TECH SL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this trend implies an increase in mass and volume

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0017] The pressure bulkhead 1 of the present invention comprises:

[0018] - a laminate 2 made of composite material having a polymer matrix in a laminated arrangement reinforced with continuous fibers,

[0019] - the overall raised portion 3 of the laminate 2 (see image 3 ), the raised portion 3 extends along the laminate surface 22,

[0020] - concave relief 4 and convex relief 5 arranged alternately on the laminate 2 (see figure 1 ), defining a reinforcement area 23 that changes from convex to concave and acts as a reinforcement (the reinforcement areas are shown with thin lines in the drawings, but they are not actually physical edges, they are only marked for a better understanding of the present invention invention).

[0021] - the concave relief 4 and the convex relief 5 have a maximum angular width of 180 degrees to prevent negatives in the production mold and to facilitate demolding; and

[0022] - a rigid interface 6 embedded in the laminate 2 for fixing the bu...

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PUM

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Abstract

The invention relates to a pressure bulkhead (1), comprising: a laminate (2) made of a composite material having a polymer matrix reinforced with fibers in a laminated arrangement; an overall bulge (3) of the laminate (2), which bulge (3) extends along a surface (22) of the laminate; a concave relief (4) and a convex relief (5) alternately arranged on the laminate (2) to define a convex-to-concave variation and acting as a reinforcement area (23); the concave relief (4) and the convex relief (5) have a maximum angular width of 180 degrees in order to prevent negative areas in the production mould and to promote demoulding; and a rigid interface (6) embedded in the laminate (2) for securing the bulkhead and provided with means for securing to an aircraft structure.

Description

technical field [0001] The present invention relates to bulkheads for separating different pressure zones, which is a very common use in aircraft. Background technique [0002] Space vehicles have pressure membranes that separate the environment of the vehicle from that of the satellite, requiring removal of dust from the vehicle's propulsion in the satellite optics. In a commercial aircraft there are walls or bulkheads that are subjected to different pressures due to actions on their sides. In terms of structure and space optimization, the best shape of these bulkheads is a flat surface, but the stiffness and strength capabilities of the flat shape are not good enough and need to be strengthened to meet the requirements and specifications. Concave geometry of the bulkhead and the use of reinforcement materials for better pressure resistance are the general solutions at present. However, this trend implies an increase in mass and volume. [0003] The bulkhead of the prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C1/10
CPCB64C1/10B64C2001/0072
Inventor C·麦斯特·冈萨雷斯M·加西亚-科西奥·卡梅纳
Owner CITD ENG & TECH SL
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