中文摘要：

提出了一种混流式水轮机固定部件动力分析附加质量的计算方法，通过引入质量单元将附加质量添加到固定部件结构的有限元控制方程，使用附加质量模型简化计算部件结构的流固耦合效应。与基于压力一位移格式的计算模型相比较，基于本文附加质量的模拟方法是可行的。

英文摘要：

In this paper, a new and simplified calculation method is proposed for the additive mass of Francis turbine＇s fixed parts. Through inducing mass element to the governing equation of fixed part structure of finite element method, the fluid-solid interaction effect of the structure is calculated by using additive mass model. The result is compared with calculation model of pressure-displacement format. The method of this paper is proved to be feasible according to the comparison.