High-speed aircraft large-area interlayer heat protection and insulation structure and forming method thereof

Abstract

The invention discloses a high-speed aircraft large-area interlayer heat protection and insulation structure and a forming method thereof, belonging to the field of aerospace aircraft surface layer thermal-protection structures. The interlayer heat protection and insulation structure comprises a grid rib support layer, a heat insulation layer and an outer skin heat protection layer which are sequentially laid from bottom to top on the upper surface of a base of a metal supporting structural part, wherein the grid rib support layer is composed of an inner skin and a plurality of grids; the rib height of the grids is 10mm-12mm, and the sectional width of ribs is 2mm; the heat insulation layer is composed of an aerogel composite material laid in the grid rib support layer; the surface of the heat insulation layer is coated with an adhesive, and then an upper skin heat-protection layer is laid on the surface of the heat insulation layer. The heat protection and insulation structure is applicable to a large-area interlayer between the metal base and a surface layer material of a body of a control cabinet, a load cabinet or an instrument cabinet of a high-speed aircraft, and has the properties of ablation resistance, high-temperature airflow scouring resistance, low thermal conduction, light weight and the like, can meet long-time heat protection and insulation requirements, has good application prospect, and is beneficial to popularization and implementation.

Description

technical field

[0001] The invention relates to an interlayer heat-proof structure, in particular to a large-area interlayer heat-proof structure suitable for high-speed aircraft and a forming method thereof, belonging to the field of aerospace vehicle surface heat protection structures. Background technique

[0002] With the development of the modern aerospace industry, aerospace vehicles maneuver in the atmosphere at high Mach numbers for a long time, and the aerodynamic heating is serious and long-lasting. The surface structure of the aircraft needs to bear not only mechanical loads but also strong thermal loads. Therefore, the structural design of the thermal protection layer with both load-bearing performance is a major trend in structural design in the aerospace field today.

[0003] For the large-area fuselage part of the aircraft, heat-resistant structures such as metal and heat-insulating blankets are generally used to form a heat-resistant system to protect the int...

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