【摘要】 从汽封内粘性振荡流场的振幅方程出发 ,通过合理的数学简化 ,得到汽封内汽流对转子激振力的表达式。这一表达式能真正反映汽封内振荡汽流对转子的作用机理 ,通过分析 ,找到了导致转子不稳定振动的真正因素。更多还原

【Abstract】 From the linearized three\|dimensional N\|S equations for unsteady state, an exact solution of exciting force to the rotor for a labyrinth seal is obtained by valid mathematical method. This exact solution shows the real law of the exciting force to the rotor in labyrinth and has great importance in the research of flow exciting problem in large rotating machinery.更多还原