摘要
基于任意拉格朗日-欧拉(Arbitrary Lagrangian-Eulerian)法,利用无侵蚀的罚函数方式实现流体和结构间的相互耦合作用,模拟柔性贮液容器在与地面碰撞时的三维动态响应过程,分析在跌落过程中贮液容器的变形、自由液面的变化、贮液容器受到的动态激励及其应力状态。通过ALE方法和传统Eulerian方法计算结果的比较,验证ALE方法对贮液容器的跌落碰撞分析的有效性,同时数值算例的结果可为容器的结构设计和试验提供参考依据。
Using Arbitrary Lagrangian-Eulerian （ALE） method and penalty function without erosion, simulation of liquid-solid coupling is realized. With this method, three-dimensional simulation of the dynamic response procedure of the impact of a flexible fluid-filled container with the ground is carried out. Liquid-solid interaction effect is taken into account. The deformation, stress, vertical acceleration and pressure at the bottom of the fluid-filled container are calculated and the slosh of fluid is also described. Compared with the results by Eulerian method, ALE method is suitable for shock analysis of flexible fluid-filled container. The simulation result can be used as important data for the design of fluid- filled container and the forecast of the dropping test.
出处
《噪声与振动控制》
CSCD
北大核心
2009年第2期46-50,共5页
Noise and Vibration Control
关键词
振动与波
贮液容器
任意拉格朗日-欧拉(ALE)法
流固耦合
vibration and wave
fluid-filled container
arbitrary Lagrangian-Eulerian （ALE） method
liquid-solid coupling
