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为了提高叶片的安全性，现代汽轮机叶片尤其是长叶片在设计中较多地采用了阻尼结构，增加叶片的阻尼以降低叶片响应，从而降低叶片的动应力．通过对叶片阻尼结构的分析研究，提出了汽轮机叶片获得最佳阻尼的阻尼结构设计方法，即首先通过一系列动力计算获得对应叶顶响应最小的最佳摩擦面正压力，再由静力分析获得其最佳阻尼，使得在现有结构下其动应力最小．分析了一个工程中实际使用的阻尼叶片，获得了它的最佳摩擦面正压力及最佳阻尼设计间隙．
In order to improve the safety of the blades, modern turbine blades, especially the long blades, adopt more damping structures in the design to increase the damping of the blades to reduce the blade response, thereby reducing the dynamic stress of the blades. Through the analysis of the damping structure of the blade, the design method of the damping structure for the optimal damping of the turbine blade is proposed. Firstly, a series of dynamic calculations are used to obtain the optimum friction surface positive pressure corresponding to the minimum blade tip response, and then obtained by static analysis Its optimal damping makes it possible to minimize its dynamic stresses under the existing structure. The damping vanes actually used in a project are analyzed, and the optimal friction surface positive pressure and the optimal damping design clearance are obtained.