双挤压油膜阻尼器的减振机制与效果分析

Mechanism and Effect of Vibration Suspression Using Two Squeeze Film Dampers

研究了双挤压油膜阻尼器对转子的稳态不平衡振动以及突加不平衡瞬态振动的控制机制与效果 ,以一个带双挤压油膜阻尼器的单盘柔性转子为模型 ,用传递系数法进行计算分析 ,结果表明阻尼器对转子的瞬态和稳态响应的控制机制与效果是不同的 .对于稳态振动 ,每个阻尼器主要控制使其所在支承产生较大变形的临界转速产生的共振 ;对于瞬态振动 ,两支承处同时加阻尼器的效果比只在一个支承处加阻尼器的效果好 .

For researching the function of two Squeeze Film Dampers on steady unbalance and transient vibration of rotor system, a single disk flexible rotor model was developed and analyzed with transfer coefficent method. It could be seen that the mechanism and effect of vibration suspression are different for the two motion.