基于Level-set法的液体晃荡与弹性液舱耦合作用研究

对基于Level-set法模拟液舱液体晃荡的数值模型进行了改进,实现了对大幅晃荡引起的抨击载荷的模拟.运用水弹性力学理论论述了液体晃荡与弹性液舱耦合作用的分析方法,建立了相应的水弹性力学方程.数值算例与实验结果的比较验证了对抨击载荷模拟的正确性;通过对晃荡载荷引起的结构响应的计算分析,得出一些关于结构响应特性的重要结论.

Research on liquid sloshing and its coupling action with flexible structure based on Level-set method

The numerical model based on Level-set method for the simulation of liquid sloshing is improved and the induced impact loads are successfully simulated. The coupling action between sloshing liquid and flexible structure is also analyzed associated with the hydroelasticity theory and corresponding hydroelastic equations are established. The method and numerical techniques introduced in this paper are validated by the comparison between the calculations and experiment. Some important conclusions about the features of structure response are obtained after corresponding calculations performed.