针对火星气球的温度特性开展研究,首先分析了火星大气的特殊热环境;归纳了影响火星气球温度特性的主要环境因素;设计了两种不同蒙皮辐射特性的原型超压气球;建立了计算火星气球稳态温度分布的模型,并做了合理的简化;选择了热、冷、任意时刻及特殊工况进行气球的蒙皮和内部气体温度计算.结果表明,通过改进蒙皮辐射特性的设计,可以满足火星气球在特定工况下飞行的温度要求.
Mars atmosphere is suitable for the use of balloons. In this paper the special thermal environment of Mars thin atmosphere is analyzed, and two prototype super pressure balloons with different film radiation properties are designed. Then a model for the thermal behavior of the balloons is established with certain simplifications. The temperature distribution of the balloons in several cases are simulated, such as warm and cold temperatures, any location and special conditions. The results show that improvement of the design of the film radiation properties will enable the balloon to meet the specific thermal behavior demands of Mars.
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