隔振对机械转子-轴承系统振动特性影响

基于非线性油膜力模型和有限元方法，仿真分析了旋转设备轴系-弹性隔振系统的振动特性。结果表明，弹性隔振能够有效控制振动向基座的传递，但同时会导致设备轴振比刚性安装时明显增大。为避免在弹性隔振工作状态下轴振超标，在转子-轴承系统设计阶段考虑弹性隔振的影响是极有必要的。

Effect of Resilient Mounting on Vibration Performance of Rotor-bearing System in Rotating Machines

Vibration characteristic of a shafting-resilient isolation system is studied numerically based on the nonlinear oilfilm force model and finite element method.The results show that although employing the resilient mounting can reduce the vibration transmission to the foundation,it can cause a notable increase of shaft vibration.Thus,the influence of resilient mounting should be considered in design of shafting to avoid overlarge shafting vibration.Finally,some suggestions for rotorbearing system design are presented.