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航天刚-弹-液耦合系统的弹-液耦合研究

梁立孚 郭庆勇

梁立孚, 郭庆勇. 航天刚-弹-液耦合系统的弹-液耦合研究[J]. 北京航空航天大学学报, 2019, 45(2): 243-251. doi: 10.13700/j.bh.1001-5965.2018.0286
引用本文: 梁立孚, 郭庆勇. 航天刚-弹-液耦合系统的弹-液耦合研究[J]. 北京航空航天大学学报, 2019, 45(2): 243-251. doi: 10.13700/j.bh.1001-5965.2018.0286
LIANG Lifu, GUO Qingyong. Elastic-liquid coupling in aerospace rigid-elastic-liquid coupling system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(2): 243-251. doi: 10.13700/j.bh.1001-5965.2018.0286(in Chinese)
Citation: LIANG Lifu, GUO Qingyong. Elastic-liquid coupling in aerospace rigid-elastic-liquid coupling system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(2): 243-251. doi: 10.13700/j.bh.1001-5965.2018.0286(in Chinese)

航天刚-弹-液耦合系统的弹-液耦合研究

doi: 10.13700/j.bh.1001-5965.2018.0286
基金项目: 

国家自然科学基金 10272034

详细信息
    作者简介:

    梁立孚  男,教授,博士生导师。主要研究方向:变分原理及其应用、航天分析动力学

    通讯作者:

    梁立孚, E-mail: lianglifu@hrbeu.edu.cn

  • 中图分类号: V414

Elastic-liquid coupling in aerospace rigid-elastic-liquid coupling system

Funds: 

National Natural Science Foundation of China 10272034

More Information
  • 摘要:

    航天刚-弹-液耦合动力学中的弹-液耦合问题是关系到航天刚-弹-液耦合系统液固耦合机理研究和大规模液固耦合建模计算研究的重要课题。通过分析刚-弹-液耦合动力学拟变分原理的泛函,说明刚-弹-液耦合中的刚-弹耦合、刚-液耦合和弹-液耦合的特点。应用Lagrange乘子法,将无际边界条件纳入泛函中,通过识别Lagrange乘子,逐步说明弹-液耦合的机理。通过对泛函求驻值发现,无际边界条件由原来的先决条件转化为驻值条件,实现了从协调元到杂交元的过渡。通过分析泛函识别Lagrange乘子前后的驻值条件,明确了识别Lagrange乘子可以有效地减少计算自由度。

     

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出版历程
  • 收稿日期:  2018-05-21
  • 录用日期:  2018-10-19
  • 网络出版日期:  2019-02-20

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