摘要
主要研究了失谐多级叶盘振动模态局部化的定量评价方法。采用3种基于应变能理论的模态局部化因子来,评价失谐多级叶盘的振动模态特性。在此基础上,分析了典型失谐模式的2级叶盘模态局部化特性。分析结果表明:3种模态局部化因子在失谐多级叶盘振动评价中具有较好的适应性。
The quantitative assessment method of vibration mode characteristics for mistuned multistage blisk was studied. The vibration mode characteristics were evaluated by three kinds of localized factors based on the strain energy theory. The localized characteristics about the mistuned two-stage blisk were analyzed. The results show that three kinds of mode localization factors have well adaptability in evaluating the vibration of mistuned multistage blisk.
出处
《航空发动机》
2012年第1期25-28,62,共5页
Aeroengine
关键词
失谐
多级叶盘
模态
定量评价
应变能
局部化因子
mistune
multistage blisk
mode
quantitative assessment
strain energy
localized factor
