Antenna window assembly and its design method suitable for long-duration aerodynamic thermal environment

Abstract

The invention provides an antenna window component suitable for a long-term aerodynamic thermal environment and a design method thereof. Carry out one-dimensional heat insulation simulation and design of the antenna window assembly, and obtain the theoretical thickness of the heat-proof opening frame and the theoretical thickness of the heat insulation layer at the center of the aerodynamic outer surface of the antenna window assembly. Combined with the technological feasibility of the thickness of the heat-proof opening frame and the heat-insulating layer, the thickness of the aerodynamic shape of the heat-proof opening frame and the thickness of the heat-insulating layer of the antenna window assembly are determined. The contact part between the heat-proof opening frame and the surrounding heat-proof structure is hollowed out and replaced with four support columns. Using 3D modeling software, establish a 3D digital model of the antenna window assembly. A three-dimensional temperature field simulation model is established by using temperature field simulation software to obtain the temperature distribution of the antenna window assembly. Optimize the design of the thickness of the heat insulation layer of the antenna window assembly until the temperature meets the temperature resistance requirements of the antenna.

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

Images