摘要
高空飞艇在平流层高度昼夜工作过程中,作为浮升气体的艇体内氦气受太阳能辐射以及艇外低温环境的影响,其平均温度变化范围较大。艇体内氦气平均温度的变化将导致飞艇艇体内外压差的变化,而艇体内外压差的变化是高空飞艇总体设计阶段对囊体材料选取时必须考虑的重要设计依据之一。通过高空飞艇抗热能力仿真计算与分析,指出高空飞艇的抗热能力必须在提高囊体强度的前提下才可以得到根本的提升,而加大副气囊体积对抗热能力影响不大反而将导致飞艇重量的增加。
The average temperature of helium in the airship is obviously affected by the solar radiation and the low temperature of the stratospheric environment during the fight of day/night alternation.The change of the differential pressure between in and out of the hull of the airship will be caused by this change of average temperature of helium,and will be the basic index for the design of the hull material and structure of the airship at the stage of general design.According to HAA heat-resistance ability simulation calculation and analysis,to fundamentally increase the ability of heat-resistance of the HAA,the premise is improving the strength of the membrane material of the hull;while enlarging the volume of hull/ballonet does not obviously help the increase ofheat-resistance ability,but will result in airship weight increase.
出处
《中国电子科学研究院学报》
2012年第6期596-598,共3页
Journal of China Academy of Electronics and Information Technology
关键词
平流层
高空飞艇
氦气
温度
压差
总体设计
stratosphere
high-altitude airship（HAA）
helium
temperature
differential pressure
general design
