| 引用本文: | 杨燕初,杜千仟,曾丹丹,等.高空气球地面充氦气量计算方法分析与试验评估.[J].国防科技大学学报,2021,43(6):1-7.[点击复制] |
| YANG Yanchu,DU Qianqian,ZENG Dandan,et al.Analysis and experimental evaluation of helium inflation calculation methods on the ground of high-altitude balloon[J].Journal of National University of Defense Technology,2021,43(6):1-7[点击复制] |
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| 高空气球地面充氦气量计算方法分析与试验评估 |
| 杨燕初1,2,杜千仟1,2,曾丹丹1,2,王帆1,张航悦1,2 |
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(1. 中国科学院空天信息创新研究院, 北京 100094;2. 中国科学院大学 航空宇航学院, 北京 100040)
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| 摘要: |
| 作为高空气球研究中的一个重要问题,气球在地面发放前充入的氦气量会直接影响其上升速度和驻空高度,进而影响平台的可靠性和稳定性。因此研究充氦气量的准确计算方法十分必要。建立了高空气球上升过程动力学模型,计算了气球初始升速的理论值,用于与实际初始升速对比,为评估充氦气量计算方法提供依据。归纳了三种较为典型的高空气球地面充氦气量计算方法,根据实际开展的飞行试验,分析对比了三种方法的准确性和误差范围。提出了浮力补偿规律,完成了对三种方法的评估。通过研究可以对现有充氦气量计算方法进行有效修正,进而为高空气球的实际飞行提供指导。 |
| 关键词: 高空气球 充氦气量计算 初始升速 浮力补偿规律 |
| DOI：10.11887/j.cn.202106001 |
| 投稿日期：2020-05-12 |
| 基金项目:国家自然科学基金资助项目(91638301)；中国科学院战略性先导科技专项(A类)资助项目(XDA17020103) |
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| Analysis and experimental evaluation of helium inflation calculation methods on the ground of high-altitude balloon |
| YANG Yanchu1,2, DU Qianqian1,2, ZENG Dandan1,2, WANG Fan1, ZHANG Hangyue1,2 |
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(1. Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China;2. School of Aeronautics and Astronautics, University of Chinese Academy of Sciences, Beijing 100040, China)
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| Abstract: |
| The amount of helium used in a balloon is an important issue, which directly affects balloon′s ascent velocity and altitude, and then affects the reliability and stability of the platform. Therefore, the study of accurate calculation method of helium is requested. Vertical dynamic model of balloons was established and the theoretical values of initial ascent velocity were calculated. It can be used to compare with the actual initial ascent velocity and provide a basis for evaluating helium inflation calculation methods. Three helium inflation calculation methods of high-altitude balloon were summarized, the accuracy and error range of the three methods were analyzed and compared according to the flight experiments. The buoyancy compensation law was put forward, and three methods have been evaluated. Through the study, it shows that the existing helium inflation calculation methods can be modified effectively, and then it can provide guidance for future flight experiments. |
| Keywords: high altitude balloon calculation of the amount of helium initial ascent velocity buoyancy compensation law |
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