An antenna window assembly and a design method thereof, which are suitable for a long-time aerothermal environment

Abstract

The invention provides an antenna window assembly and a design method thereof, which are suitable for a long-time aerothermal environment. The simulation and design of one-dimensional heat insulationof antenna window assembly are carried out, and the theoretical thickness of heat insulation layer and the theoretical thickness of heat insulation port frame at the center of the aerodynamic outlinesurface of antenna window assembly are obtained. Combined with the process feasibility of the heat shield frame and the thickness of the heat shield layer, the thickness of the aerodynamic outline, the face position and the thickness of the heat shield layer of the antenna window assembly are determined. Replace the hollowout of the contact area between the heat shielding port frame and the peripheral heat shielding structure with four support columns. Using 3D modeling software, the 3D digital model of antenna window assembly is established. Temperature field simulation software is used to establish a three-dimensional temperature field simulation model, and the temperature distribution of antenna window assembly is obtained. Optimize the insulation thickness of the antenna window assembly until the temperature meets the antenna temperature requirements.

Description

technical field [0001] The patent of the present invention relates to an antenna window assembly suitable for long-term aerodynamic thermal environment and its design method, especially to an aircraft lightweight antenna window assembly suitable for aerodynamic thermal environment of the kilosecond level and above, belonging to the aircraft antenna window assembly design field. Background technique [0002] The antenna window assembly belongs to the integrated part of the local heat-proof and wave-transmitting structure, and is an important part of the structure of the hypersonic vehicle. During the flight of a hypersonic vehicle, in addition to meeting the mechanical and thermal performance requirements, it also needs to meet the electromagnetic wave penetration function. With the development of hypersonic technology, the flight time of the aircraft is getting longer and longer, reaching the order of thousands of seconds and above, and the aerodynamic heating environment i...

AI Technical Summary

Problems solved by technology

[0005] The technical problem of the present invention is: to overcome the deficiencies of the existing technology, provide an antenna window assembly and its design method suitable for long-term aerodynamic thermal environment, and solve the problem of "surface conduction" heat dissipation in thermal environments of the order of thousands of seconds and above. Short circuit problem and light weight problem

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