摘要
通过有限元方法对高阻尼末级长叶片的动频进行了深入的理论计算和分析,同时对叶片进行了相关测频试验,理论和试验结果吻合程度良好;在理论和试验研究的基础上,针对高阻尼末级长叶片的特殊结构,对频率与结构(围带和拉筋)之间的关系进行了理论研究,提出了切实可行的调频方法。
Together with the relevant experiment, deep theoretical calculation and analysis about the high damping frequency of the last stage blades was made by FEM. The results of theory and experiment matched greatly. Based on the research of theory and expeliment,a study on the relationship between the frequency and structure （ shroud and lacing）was made,which was aimed at the special structure of the high damping last stage blades. And a practical and feasible method ＇about adjusting frequency was proposed.
出处
《汽轮机技术》
北大核心
2013年第3期192-194,共3页
Turbine Technology
关键词
末级叶片
ABAQUS
固有频率
turbine last stage blades
abaqus
natural frequency
