摘要
利用能量法和有限元法计算了 3种不同汽轮机叶片A0 型切向振型的静频和动频 ,通过比较计算结果数据 ,对目前广泛使用的动频系数经验公式B =0 .6 9Dml - 0 .3+sin2 β作出评价。
The static and rotational frequency of A 0 type tangential vibration are calculated by energy method and finite element method for three different steam turbine blades. Comparing the result of calculation, the evaluation on experimental formula of blade rotational frequency coefficient B= 0.69 D ml- 0.3 + sin 2β , which is adopted widely at present, is given in this paper.
出处
《汽轮机技术》
北大核心
2001年第1期14-16,共3页
Turbine Technology
关键词
汽轮机叶片
振动频率
动频系数
经验公式
steam turbine blade
vibration frequency
rotational frequency coefficient