Heat insulation structure used for high-mach-number air vehicle

The invention relates to a design principle of a heat insulation structure used for a high-mach-number air vehicle. When the heat insulation structure of the high-mach-number air vehicle is designed through the principle, the weight of the heat insulation structure can be reduced on the premise that the heat insulation effect is guaranteed. The principle is that heat is taken away through high-speed flowing air and discharged out of the air vehicle, and the heat insulation aim is achieved. The principle is mainly used for designing structures, requiring heat insulation parts, of the high-mach-number air vehicle.