Abstract
In order to estimate the spatial distribution of infrared radiation of stratospheric airship, the geometric model of stratospheric airship was firstly constructed in this paper. Then, considering the influence of environmental radiation, the one-dimensional heat conduction differential equation of airship skin was established, the equation was solved by backward difference method, and the temperature distribution of airship skin was numerically calculated. On this basis, the spatial distribution of airship infrared radiation was further calculated. The results show that the infrared radiation intensity of the airship in the sunny face is higher than that in the shadow face, and the infrared radiation intensity of the airship in the 8~14μm is obviously higher than that in the 3-5μm.
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