Experiment research on stability of herringbone grooved aerodynamic bearing-rotor system

摘要：

　　Take experiment research on characteristics of turbine expansion engines shaft supported by herringbone grooved aerodynamic journal bearing, with the emphasis on its low frequency whirl.Get bearings taking-off speed and low frequency vibration characteristics by comprehensively analysis methods of spectrum diagram, haft orbit and time waveform and bifurcation diagram.The result shows that the graphite made herringbone groove hydrodynamic bearing can reach 37548 r/min and half-frequency vibration happens since 13021 r/min.With the speed up, rubbing exists and the amplitude of low frequency even bigger than power frequency.The result shows that the half-frequency is the main unstable factor.

关键词： herringbone grooved aerodynamic journal bearing experiment research taking-off speed half frequency vibration

作者: Chen Changting Yang Jinfu Han Dongjiang Tang Changliang

作者单位: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, China

会议类型: 国际会议

会议名称: the International Conference Vibroengineering-2014

会议地点: 贵阳

会议语种:英文

页码: 69-74

在线出版日期: 2014-11-07（万方平台首次上网日期，不代表论文的发表时间）