流固耦合动力学问题中大位移耦合界面条件的处理方法

摘要

In this paper,a method for treating coupling boundary conditions with large movement，which include mobile inclined-plane and curved boundaries, is discussed for fluid-solid interaction dynamics and the nonlinear vibration of a 2-D floating rigid body on water surface is calculated．The available characteristics for the method is proved and it could be used to solve the problems of the real nonlinear vibration in which there are coupling boundaries with large movement for fluid-solid interaction dynamics．%本文讨论了流固耦合问题中的大位移耦合界面条件的处理方法，这类界面条件包括移动斜面界面条件及移动曲面界面条件。计算了在水面的二维刚性浮体的非线性振动问题，证实了此处理方法的可行性，可以用来解决具有大位移耦合界面条件的非线性流固耦合动力学问题