基于褶皱的平流层浮空器升空结构形变模拟

马云鹏; 吕明云; 武 哲; 刘东旭

基于褶皱的平流层浮空器升空结构形变模拟

北京航空航天大学航空科学与工程学院, 北京 100191

详细信息

作者简介:
马云鹏(1981-),男,山西长治人,博士生,yunpeng_123@163.com.

中图分类号: V 274
计量
- 文章访问数: 2400
- HTML全文浏览量: 161
- PDF下载量: 1003
- 被引次数: 0
出版历程
- 收稿日期: 2009-05-15
- 网络出版日期: 2009-11-30

Simulation of near-space airship based on wrinkle during ascent

School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 平流层浮空器囊体材料具有非线性、黏弹性、各向异性和不能抗压等特点,起皱现象是在升空膨胀过程中必然会出现的形变状态,褶皱的扩展会影响整个囊体结构的受力状态,改变囊体变形和应力分布.同时,褶皱的存在还会影响囊体结构的动力学行为和空间环境下的热力学分布.通过主应力-主应变相结合准则对褶皱区域进行判别,采用修正褶皱单元的本构矩阵方程的方法对褶皱区域进行处理,地面充氦气试验证明了新方法的模拟结果更加接近测试值.从而为平流层浮空器设计提供了一种有效的分析方法.
- 浮空器 /
- 升空模拟 /
- 应力分析 /
- 应变 /
- 结构分析
Abstract: The material of the near-space airship film is nonlinear,anisotropic,viscoelastic and incompressible.Wrinkling will be present as the airship rises and inflates in the atmosphere.The expanding wrinkles can influence stress and strain of the film.Meanwhile,it can change dynamic action and thermodynamic distributing of film in the space environment.The principal stress-principal strain criterion for predicting the wrinkle states and the constitutive matrix equation with modified wrinkle unit were used to analyse wrinkle areas.The simulation result of the new method is more conform with the testing value through the test on the ground.An effective analysis method is provided for the design of the stratospheric balloon and near-space airship.
- airship /
- simulation /
- stress analysis /
- strain /
- structural analysis

HTML全文

参考文献(1)

[1] 黄无量,徐春娴,吴枚,等.高空科学气球的应力分析与球形设计[J].空间科学学报,1986,6(1):59-62 Huang Wuliang,Xu Chunxian,Wu Mei,et al.On the stress analysis and the shape design of the scientific balloon at high altitude[J].Chinese Journal of Space Science,1986,6(1):59-62(in Chinese) [2] 马云鹏,刘东旭,武哲.平流层高空气球升空过程中应力分析[J].飞机设计,2009,29(1):17-21 Ma Yunpeng,Liu Dongxu,Wu Zhe.The stress analysis of near space balloon during ascent[J].Aircraft Design,2009,29(1):17-21(in Chinese) [3] Pagitz M, Pellegrino S.Buckling pressure of "pumpkin" balloons[J].International Journal of Solids and Structures,2007,44(21):6963-6986 [4] Kang S, Im S. Finite element analysis of wrinkling membranes[J].Journal of Applied Mechanics,1997,64(2):263-269 [5] Adler A L.Finite element approaches for static and dynamic analysis of partially wrinkled membrane structures .Boulder: Department of Aerospace Eigineering, University of Colorado, 2000 [6] 杨庆山,姜忆南.张拉索-膜结构分析与设计[M].北京:科学出版社,2004:116-119 Yang Qingshan,Jiang Yi-nan.Analysis and design of tensioned cable-membrane structures[M].Beijing:Science Press,2004:116-119(in Chinese) [7] Khoury G A, Gillet J D. Airship technology[M].Cambridge:Cambridge University Press,1999:28-33 [8] Mueller J B, Paluszek M A, Zhao Y Y.Development of an aerodynamic model and control law design for a high altitude airship .AIAA-2004-6479,2004 [9] Kanikdale T S, Marathe A G, Pant R S. Multi-disciplinary optimization of airship envelope shape .AIAA-2004-4411,2004

施引文献

资源附件(0)

访问统计