摘要
采用模态综合方法，在三维八节点非协调有限元模型的基础上建立了汽轮机叶片组振动特性的分析方法，对带有焊接双拉筋的叶片组进行了模态分析，数值分析结果有良好的精度，表明该方法具有理论意义和工程实用价值。
Employing 3D 8node non harmonic finite element model , a method to analyze the vibration characteristics of steam turbine bladed group is developed based on the modal synthesis method . The numerical results of analysis of the bladed group with two lacing wires are very precise .It shows that the method developed in this paper has not only theoretical significance ,but engineering application value as well.
出处
《中国电机工程学报》
EI
CSCD
北大核心
1999年第6期77-79,共3页
Proceedings of the CSEE
关键词
汽轮机
叶片组
振动特性
模态综合法
steam turbine bladed group
vibration characteristics
3D finite element method
modal synthesis method
