【摘要】 本文利用空间梁模型，对带有阻尼结构的汽轮机扭曲长叶片的扭转恢复角进行了计算分析。在有限元方法的基础上，建立了叶片间阻尼联接结构的稳态分析模型，以探讨由此产生的耦合效应，为阻尼结构的进一步研究提供了一个理论计算基础。据此对８５１ｍｍ叶片进行了计算，获得了较为合理的结果。更多还原

【Abstract】 Abstract A calculation analysis with the help of special truss models has been performed for twisted long blades of steam turbines, to study its angle of untwist.Based on the finite element method,a stationary analytical model has been established for the inter-blade damping structure,to study its matchingeffect and provide a basic theoretical calculation method for a more extensive study of damping structures.A 851mm long blade was calculated herewith and quite reasonable results were obtained.更多还原