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圆柱壳结构入水过程的流固耦合仿真与试验

李飞 孙凌玉 张广越 康宁

李飞, 孙凌玉, 张广越, 等 . 圆柱壳结构入水过程的流固耦合仿真与试验[J]. 北京航空航天大学学报, 2007, 33(09): 1117-1120.
引用本文: 李飞, 孙凌玉, 张广越, 等 . 圆柱壳结构入水过程的流固耦合仿真与试验[J]. 北京航空航天大学学报, 2007, 33(09): 1117-1120.
Li Fei, Sun Lingyu, Zhang Guangyue, et al. Simulation and experiment of cylinder shell structure dropping into water based on fluid structure interaction[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(09): 1117-1120. (in Chinese)
Citation: Li Fei, Sun Lingyu, Zhang Guangyue, et al. Simulation and experiment of cylinder shell structure dropping into water based on fluid structure interaction[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(09): 1117-1120. (in Chinese)

圆柱壳结构入水过程的流固耦合仿真与试验

详细信息
  • 中图分类号: O 344; O 352

Simulation and experiment of cylinder shell structure dropping into water based on fluid structure interaction

  • 摘要: 大型圆柱壳结构从空中入水时,在水流强大冲击下将发生较大变形甚至断裂.为提高该结构的耐撞性,将仿真与试验相结合.通过静态拉伸和动态SHPB试验获取两种备选材料的非线性本构关系,拟合出塑性随动材料模型.制作了1∶ 10简化缩比模型,进行了跌落试验与仿真分析.建立了真实结构与全尺寸的薄壳、水、空气耦合的多物质仿真模型,通过ALE/Lagrange无侵蚀罚函数耦合算法,实现了入水过程的有限元仿真分析.找到了初始方案的不足之处,提出了改进方案并进行了仿真验证分析.该方法同样适用于其他具有大变形和非线性的流体冲击问题.

     

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出版历程
  • 收稿日期:  2006-09-14
  • 网络出版日期:  2007-09-30

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