带阻尼套筒的迷宫气封结构振动特性研究  

Research on Vibration Character of Labyrinth Gas Seals with Damping Sleeve

作　　者：李罡[1] 陈矛[1] 谢平[1] 

机构地区：[1]空军第一航空学院,信阳464000

出　　处：《科学技术与工程》2008年第10期2556-2561,共6页Science Technology and Engineering

摘　　要：对带阻尼套筒的迷宫气封结构进行了振动特性的计算分析,通过建立接触面刚度矩阵来模拟阻尼套筒对迷宫气封结构固有振动特性的影响。重点分析了结构固有频率随刚度比β、质量比γ和转速Ω的变化情况,并对结构的振型协调共振问题进行了分析;对各参数进行无量纲处理,使所得结论具有通用性。A vibration analysis for the labyrinth gas seals with damping sleeve is presented. A contact stiffnessmatrix is built to simulate the influence of damping sleeve on labyrinth gas seals. The vibration mode harmony analysis is done on the linearized model. The change of frequency along with β,γ and Ω is analyzed. The results are presented in non-dimensional form for general-purpose applications.

关 键 词：阻尼套筒 迷宫气封 无量纲化 振型协调 振动特性 

分 类 号：TH138.89[机械工程—机械制造及自动化]