平流层系留气球气动参数敏感性分析

张冬辉; 张泰华; 崔燕香; 陈臣; 王生

doi:10.7527/S1000-6893.2021.25083

航空学报 >

2022 , Vol. 43 >Issue 5: 125083 - 125083

DOI: https://doi.org/10.7527/S1000-6893.2021.25083

流体力学与飞行力学

平流层系留气球气动参数敏感性分析

张冬辉 ,
张泰华 ,
崔燕香 ,
陈臣 ,
王生

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1. 中国科学院空天信息创新研究院, 北京 100194;
2. 中国科学院大学, 北京 100190

收稿日期: 2020-12-10

修回日期: 2021-01-08

网络出版日期: 2021-02-02

基金资助

中国科学院战略性先导科技专项（XDA20100200）

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Sensitivity analysis of aerodynamic parameters of stratospheric tethered balloon

ZHANG Donghui ,
ZHANG Taihua ,
CUI Yanxiang ,
CHEN Chen ,
WANG Sheng

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1. Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100194, China;
2. University of Chinese Academy of Sciences, Beijing 100190, China

Received date: 2020-12-10

Revised date: 2021-01-08

Online published: 2021-02-02

Supported by

Strategic Priority Research Program of the Chinese Academy of Sciences (XDA20100200)

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摘要

推导了平流层系留气球三维数学模型，提出了从系统优化设计和驻空试验特性研究两个角度进行参数敏感性分析的意义，给出了两个角度下参数敏感性分析方法，并从这两个角度对系缆法向气动力系数、气球气动阻力系数和气球气动升力系数进行了敏感性分析。结果表明：减小系缆法向气动力系数在系统优化设计中能够显著提高系缆最大安全系数，并在驻空试验中能够减小系缆张力和提升系统抗风能力；气球气动阻力系数和气球气动升力系数对设计阶段提高系缆最大安全系数没有影响，但参数变化会显著影响驻空试验的系缆安全和系统抗风能力。

关键词： 平流层系留气球; 气动参数; 敏感性分析; 系缆安全系数; 优化设计

本文引用格式

张冬辉 , 张泰华 , 崔燕香 , 陈臣 , 王生 . 平流层系留气球气动参数敏感性分析[J]. 航空学报, 2022 , 43(5) : 125083 -125083 . DOI: 10.7527/S1000-6893.2021.25083

Abstract

A three-dimensional model is established for a stratospheric tethered balloon. The significance of parameter sensitivity analysis from the perspectives of system optimization design and flight test characteristics is discussed. The method of parameter sensitivity analysis from the two aspects is proposed and conducted for the tether normal aerodynamic coefficient, balloon resistance coefficient, and balloon lift coefficient. The analysis results show that reduction of the normal tether aerodynamic coefficient can significantly improve the maximum safety factor of the tether in the system optimization design, meanwhile reducing the tether tension and improving the wind-resistant capability of the system in the flight test. The balloon resistance coefficient and balloon lift coefficient do not improve the maximum safety factor of the tether in the design stage, while change in the parameters will affect the safety of the cable and wind-resistant capability in the flight test.

Key words： stratospheric tethered balloon; aerodynamic parameters; sensitivity analysis; optimal design; safety factor of tether

参考文献

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