平流层浮空器保压指标对驻空性能的影响
收稿日期: 2015-06-29
修回日期: 2015-09-28
网络出版日期: 2015-10-09
Effect of ground pressure-maintenance index on stagnation performance of stratospheric aerostats
Received date: 2015-06-29
Revised date: 2015-09-28
Online published: 2015-10-09
史智广 , 张小强 , 李锦清 , 钱太阳 . 平流层浮空器保压指标对驻空性能的影响[J]. 航空学报, 2016 , 37(6) : 1833 -1840 . DOI: 10.7527/S1000-6893.2015.0267
Ground pressure-maintenance trial is a significant way to evaluate comprehensively the envelope performance, whose designing index will affect the stagnation height and time of stratospheric aerostats. A spherical pressure stratospheric aerostat is analyzed as an example to estimate real-time dynamics of helium pressure, temperature and mass in stagnation process by establishing vertical motion model, thermodynamic model and micro-damnification model of helium permeability. The relationship between ground pressure-maintenance index, stagnation height and time of stratospheric aerostats is deduced through envelope material micro-damnification equivalent diameter. Then, the effect law is summarized to provide an overall reference for the reasonable designing pressure-maintenance index by analyzing quantitatively the stagnation performance and pressure-maintenance index.
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