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Composite material integrated frame beam and manufacturing method

A technology of composite materials and manufacturing methods, applied in the direction of fuselage frame, fuselage, transportation and packaging, etc., can solve problems such as manufacturing difficulties, delamination risks, and inability to guarantee strength, so as to reduce weight, avoid delamination, and reduce parts Quantity effect

Pending Publication Date: 2021-01-05
CHINA HELICOPTER RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] If the metal frame beam is integrally formed, it is very difficult to manufacture
However, if the existing method is used for the integrated molding of composite frame and beam, it will not only be difficult to manufacture, but also have the risk of delamination, and the strength cannot be guaranteed

Method used

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  • Composite material integrated frame beam and manufacturing method
  • Composite material integrated frame beam and manufacturing method
  • Composite material integrated frame beam and manufacturing method

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Embodiment Construction

[0037]The embodiment of the present invention provides a composite material integrated frame beam, such asfigure 1 As shown, the integrated frame beam is a cross-shaped structure as a whole, one direction of the cross-shaped structure is the X direction, and the other direction is the Y direction;

[0038]The integrated frame beam description includes: upper cross pavement, middle cross pavement, and lower cross pavement;

[0039]Among them, the middle cross-shaped ply includes an I-shaped cross-section in the X direction and an I-shaped cross-section in the Y direction; the I-shaped cross-section in the X direction includes two continuous composite fabrics with a C-shaped cross section, Y The layer with the I-shaped cross section is a discontinuous composite fabric, and includes the left half of the layer and the right half of the layer; both the left half of the layer and the right half of the layer are composed of two continuous layers of C-shaped cross-sections. Material fabric compos...

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Abstract

The invention belongs to the technical field of aircraft structure design, and discloses a composite material integrated frame beam and a manufacturing method, the integrated frame beam is of a cross-shaped structure as a whole, one direction of the cross-shaped structure is the X direction, and the other direction of the cross-shaped structure is the Y direction; the integrated frame beam comprises an upper cross-shaped pavement layer, a middle cross-shaped pavement layer and a lower cross-shaped pavement layer. Wherein the middle cross-shaped paving layer comprises a paving layer with an I-shaped cross section in the X direction and a paving layer with an I-shaped cross section in the Y direction; wherein the paving layer with the I-shaped cross section in the X direction comprises two continuous composite fabrics with C-shaped cross sections, and the paving layer with the I-shaped cross section in the Y direction is a discontinuous composite fabric and comprises a left half paving layer and a right half paving layer; and both the left half part paving layer and the right half part paving layer consist of two continuous composite fabrics with C-shaped sections. And a sewing process is used in the intersection area. According to the integrated frame beam, integrated forming can be achieved, layering can be avoided, and the strength is guaranteed.

Description

Technical field[0001]The invention belongs to the technical field of aircraft structure design, and specifically relates to a composite material integrated frame beam and a manufacturing method.Background technique[0002]Currently, the frame and beam of the aircraft (the one perpendicular to the heading is called the frame, and the one parallel to the heading is called the beam) are manufactured separately, and then spliced ​​using connectors. In this way, the weight of the connecting piece is costly, and for the composite frame beam, the safety hazard at the connection is great. Making the frame and beam into one body will reduce weight and improve performance.[0003]If the metal frame beam is integrally formed, it is very difficult to manufacture. However, if the existing method is used for integrated molding of composite frame and beam, not only manufacturing is difficult, but also there is a risk of delamination, and the strength cannot be guaranteed. However, the integration of c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C1/06B64F5/10
CPCB64C1/061B64F5/10
Inventor 陈芳育刘志超李进黄志文李俊
Owner CHINA HELICOPTER RES & DEV INST
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