【摘要】 计算物体的撞水响应目前已有了一些专用的算法．本文在分析和比较这些算法的基础上，提出了一个解撞水问题的任意的拉格朗日欧拉边界元－有限元混合法（ＡＬＥ－ＢＥ－ＦＥＭ），这个方法不仅充分发挥了边界元法计算半空间流场的优越性，而且还能计及液面大晃动的非线性边界条件和物体变形所造成的影响．文中给出圆柱刚体和楔形刚柱体两个撞水算例，结果有力表明该方法的可靠性和有效性。更多还原

【Abstract】 A mixed method of arbitrary Lagrangian-Eulerian boundary element and finite element is proposed for treating the impact of a deformable structure with an inviscid and incompressible fluid. This method enables us to analyze the effect of nonlinear free surface conditions of the impact response. Two examples of an impacting cylinder and an impacting wedge into initially calm water are presented. It shows that the proposed method is effective for solving the fluid-structure impact problems with a serious nonlinearities.更多还原