论文部分内容阅读
根据高空飞艇的定点运行区域地球纬度、定点运行时域的太阳运行规律,以及高空飞艇的飞行姿态,对高空飞艇囊体及所包容的氦气建立有限元物理模型并进行有限元热分析,得到高空飞艇艇内氦气平均温度在太阳辐射情况下随时间变化的规律及温差范围。同时,与不包括飞艇囊体热容量的飞艇氦气热分析进行了比较,得到了高空飞艇热分析中加入囊体材料热容及忽略囊体热容的差异。研究证明高空飞艇的热分析必须考虑囊体的质量和热容及薄膜电池的质量和热容。
According to the latitude of the earth in the fixed-point operating region of the high-altitude airship, the solar operating law in the fixed-point operating time domain and the flight attitude of the airship, a finite element physical model of the airship and the helium contained in the airship is established and analyzed by finite element method The law of the average temperature of helium in airship and the temperature difference range under the condition of solar radiation over time. At the same time, the thermal analysis of the airship without the thermal capacity of the airship capsule was compared, and the difference of the heat capacity of the capsule material and the heat capacity of the capsule body was obtained when thermal analysis of the airship was performed. Studies have shown that the thermal analysis of airships must account for the mass and heat capacity of the capsule and the mass and heat capacity of the thin-film battery.