提出流固耦合动力分析的新方法。该法通过结构动力学的有限元求解方程和 Newmark法 ,导出了新的迭代公式。流场的动压力使弹性体的动态特性变为载荷非线性问题 ;同时 ,固体位移场的变形作用使流场成为可变域流场。这些问题都可用本法得以解决。文中给出算例和工程应用实例。数值解结果表明 ,该法收敛速度快 ,效率高 ,克服了耦合问题的求解困难 A new method of fluid-structure coupling dynamic analysis is proposed. The method derives a new iteration formula through the structural dynamics finite element solution equation and the Newmark method. The dynamic pressure of the flow field changes the dynamic behavior of the elastomer into a nonlinear load problem. Meanwhile, the deformation of the solid displacement field makes the flow field variable. These problems can be solved by this law. The article gives examples and engineering examples. The numerical solution shows that this method has the advantages of fast convergence and high efficiency, and overcomes the difficulty of solving coupling problems