Abstract：Abstract: Labyrinth seals are widely used in rotating machineries. The research on the interaction between the fluid and rotor in the seal is important to the system stability analysis. With the Two-Control-Volume model, the controlling equations were deduced for incompressible flow in the labyrinth seal. The rotor-labyrinth seal system was modeled as a Jeffcot rotor subject. With the nonlinear dynamic model, the numerical solution of the rotor’s displacement and the pressure in seal cavity were analyzed. An eccentric rotor-seal system example was calculated to show the nonlinear characters of the system which could be observed in Hopf bifurcation diagrams and Poincare maps. The results suggested that it was important to reduce the rotor eccentricity for the improvement of the system stability.
刘思涌 薛自华 陆 圯 郑铁生. 迷宫密封-转子系统非线性动力学模型及求解[J]. , 2012, 31(13): 41-45.
LIU Si-yong;XUE Zi-hua;LU Yi;ZHENG Tie-sheng. A Nonlinear Dynamic Model and Its Solution of Labyrinth Seal-Rotor System. , 2012, 31(13): 41-45.
2012, Vol. 31 
