基于ALE方法的航行器跨介质冲击载荷研究

Research on Cross-Medium Impact Load of UUV Based on ALE Algorithm

摘要:

为了探究航行器在跨介质过程中的动力学响应，基于任意拉格朗日-欧拉(ALE)方法建立航行器跨介质数值计算模型，仿真分析了不同初始参数对航行器跨介质冲击载荷的影响规律，给出了最大冲击载荷与跨介质速度与跨介质角度之前的函数关系。研究结果可为航行器跨介质弹道及结构设计提供参考。

关键词:航行器;跨介质弹道;任意拉格朗日-欧拉方法(ALE 方法)

Abstract:

In order to explore the dynamic response of UUV in the cross-media process，the numerical calculation model of UUV is established based on the Arbitrary Lagrange-Euler (ALE) algorithm. The influence of different initial parameters on the cross-media impact load of UUV is simulated and analyzed. The functional relationship between the maximum impact load and the cross-media velocity and the cross-media angle is given. The research results can provide a reference for the cross-medium trajectory and structure design of UUV.

Key words:UUV;cross-media trajectory;arbitrary Lagrange-Euler algorithm(ALE)