北京航空航天大学学报 ›› 2008, Vol. 34 ›› Issue (12): 1464-1468.

• 论文 • 上一篇    下一篇

反作用轮密封罩结构抗屈曲设计计算及试验

赵丽滨1, 龙丽平2, 张建宇2, 韩邦成3   

  1. 1. 北京航空航天大学 宇航学院, 北京 100191;
    2. 北京航空航天大学 航空科学与工程学院, 北京 100191;
    3. 北京航空航天大学 仪器科学与光电工程学院, 北京 100191
  • 收稿日期:2007-01-04 出版日期:2008-12-31 发布日期:2010-09-16
  • 作者简介:赵丽滨(1976-),女,黑龙江人,副教授,lbzhao@buaa.edu.cn.
  • 基金资助:

    国家民用航天预研重点资助项目

Numerical and experimental research on buckling design of reaction-wheel’s sealed cowling structure

Zhao Libin1, Long Liping2, Zhang Jianyu2, Han Bangcheng3   

  1. 1. School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
    2. School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
    3. School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2007-01-04 Online:2008-12-31 Published:2010-09-16

摘要: 反作用轮密封罩结构对保证反作用轮正常工作具有重要的作用,其稳定性直接影响反作用轮性能的稳定性.针对某反作用轮密封罩结构,基于通用有限元分析软件ANSYS,利用特征值屈曲分析和非线性屈曲分析两种方法,通过对影响反作用轮密封罩结构稳定性能的关键因素的定量研究,指出壳面形态是影响密封罩稳定性能的关键因素,提出了该类密封罩结构的设计应采用小凸大凹弧的设计方案,说明了两种屈曲分析方法对该类问题的适用范围.反作用轮密封罩的地面模拟试验结果说明了采用非线性屈曲分析方法预测临界屈曲载荷在工程上是可行的.结果为反作用飞轮密封罩结构以及同类产品的设计提供参考.

Abstract: It is significant to ensure stability of the sealed cowling structure, which offers a safe work environment for the reaction-wheel. The stability of some kind of sealed cowling structure was quantitatively researched by the eigenvalue buckling technique and nonlinear analysis method based on the general software ANSYS. The shell shape as a key factor to affect the stability of the sealed cowling was pointed. A small protruding arc and large concave arc scheme was presented to design the sealed cowling structures. The application scopes of the eigenvalue buckling analysis and nonlinear buckling analysis were described aimed to the similar structures. The experimental results illustrate the practicability to predict the critical buckling load via nonlinear buckling analysis method in engineering. The researches are useful for the design and buckling analysis of similar structures.

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