带阻尼套筒的篦齿封严结构气动弹性稳定性分析  

AERO-ELASTIC STABILITY ANALYSIS OF LABYRINTH GAS SEALS WITH DAMPING SLEEVE

作　　者：李罡[1] 祝刚[1] 陈矛[1] 

机构地区：[1]空军第一航空学院航空机械工程系,信阳464000

出　　处：《机械强度》2008年第2期319-323,共5页Journal of Mechanical Strength

摘　　要：研究阻尼套筒对篦齿封严结构失稳颤振的抑制机理,采用复特征值法对带阻尼套筒的篦齿封严结构稳定性进行分析,建立一套适合工程应用的稳定性分析方法,理论分析阻尼套筒提高结构稳定性的原因并得出相应结论。The restraining mechanism of vibration of labyrinth gas seals by damping sleeve is studied. The stability of labyrinth gas seals with damping sleeve is analyzed by the complex eigenvalue method, which is illustrated in detail along with the analysis. The stability analysis method here has been adapted to engineering applications. Based on this theoretical analysis one can clearly see the reason why the structure stability of labyrinth gas seals can be improved by the damping sleeve. Finally, helpful conclusions and remarks are drawn.

关 键 词：阻尼套筒 篦齿封严 稳定性 复特征值 

分 类 号：V214.42[航空宇航科学与技术—航空宇航推进理论与工程]