噪声与振动控制Issue(4)：124-128,5.DOI:10.3969/j.issn.1006-1335.2015.04.028
高速气体轴承-转子系统转速飞升故障的试验
Experimental Study on Speed Rise Faults of a High-speed Aerostatic Bearing-rotor System
摘要
Abstract
In order to analyze speed rise faults of a gas bearing-rotor system, an experimental study on a high speed turbine generator was completed. The rotor was supported by aerostatic radial-thrust bearings. Using the methods of time-frequency-amplitude waterfall diagrams, shaft trajectory, frequency spectrum character analysis and bifurcation diagram, the typical features of the fault of the speed rise and its occurrence conditions were obtained. In addition, the influence of bearing gas supply pressure and flow rate characteristic on the speed rise was studied. Experimental results show that within a certain range, higher bearing gas supply pressure can put off the occurrence of the speed rise. In the process of speed rising, reduction of the drive-gas flow rate can terminate the speed rise earlier and raise the stability of the gas bearing rotor system.关键词
振动与波/气体轴承-转子系统/转速飞升/轴心轨迹/分岔图/三维谱图Key words
vibration and wave/gas bearing-rotor system/speed rise/shaft trajectory/bifurcation diagram/3D spectrum diagram分类
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付忠广,边技超,杨金福,韩东江,王正威,于明涛..高速气体轴承-转子系统转速飞升故障的试验[J].噪声与振动控制,2015,(4):124-128,5.基金项目
国家科技支撑计划项目（2012BAA11B02）；中央高校基本科研业务费专项资金资助（13XS10）；中央高校基本科研业务费专项资金项目 （）
