基于副气囊耦合的飞艇纵向运动影响分析

游颖捷; 糜攀攀; 吕明云; 刘文定

doi:10.13700/j.bh.1001-5965.2015.0427

基于副气囊耦合的飞艇纵向运动影响分析

doi: 10.13700/j.bh.1001-5965.2015.0427

1.
北京林业大学工学院, 北京 100083
2. 北京麻豆精品秘国产传媒航空科学与工程学院, 北京 100083

基金项目:

中航工业产学研专项(Cxy2014BH04)

详细信息

作者简介:
游颖捷女,硕士研究生。主要研究方向:飞行动力学与控制仿真。Tel.:010-82338116 E-mail:15201443795@163.com;糜攀攀男,硕士研究生。主要研究方向:飞行动力学与控制仿真。Tel.:010-82338116 E-mail:BluceMi@163.com;吕明云男,博士,教授,博士生导师。主要研究方向:飞行器总体设计、飞行器隐身技术。Tel.:010-82338116 E-mail:lv503@cq5520.com

通讯作者:
吕明云,Tel.:010-82338116 E-mail:lv503@cq5520.com

中图分类号: V274
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- 被引次数: 0
出版历程
- 收稿日期: 2015-06-25
- 网络出版日期: 2016-06-20

Airship's longitudinal motion impact analysis based on coupling ballonet

1.
School of Engineering, Beijing Forestry University, Beijing 100083, China
2. School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要

摘要: 高空大型飞艇副气囊体积占比很大,甚至达90%以上,副气囊动力学对飞艇运动产生较大影响。对巡航高度为6 000 m的某大型飞艇,建立基于圆柱容器的副气囊动力学模型,进一步构建考虑副气囊的飞艇纵向耦合动力学方程,并对飞艇纵向运动进行了数值仿真,将其与不考虑副气囊时的结果进行对比。结果表明:副气囊对大型飞艇俯仰运动有较大影响,容易引起运动发散,且耦合影响随飞艇高度增大而变小,同时副气囊体积不变时,其直径越小,动力学耦合效应影响越小;副气囊效应会降低飞艇的操纵性,在进行飞艇设计时应该予以考虑。
- 飞艇设计 /
- 副气囊 /
- 纵向运动 /
- 飞行动力学 /
- 平流层飞艇
Abstract: Large high-altitude airship has a high volume ratio which even exceeds 90%, so it will induce significant impact on airship's motion because of the ballonets dynamics. Considering one large-scale airship whose cruise altitude is 6 000 m, ballonets dynamics based on the cylindrical container was established and airship longitudinal motion equations containing ballonets were further formulated. Finally, numerical simulation of airship longitudinal motion was performed and results were compared with that of airship model without ballonet dynamics. Results indicate that ballonets dynamics will make a difference to airship's pitch motion, easily inducing motion divergence and ballonets' coupling impacts reduce when the airship rises. In the meantime, the smaller the diameter of ballonets is, the smaller the dynamic coupling effect is when ballonets' volume is unchanged. In addition, the controllability of airship will be weakened because of ballonets, which should be taken into account during airship design.
- airship design /
- ballonet /
- longitudinal motion /
- flight dynamics /
- stratospheric airship

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