波箔型径向气体箔片轴承-转子系统升降速动态特性试验

徐方程; 刘占生; 马瑞贤; 黄飞淋

doi:10.13224/j.cnki.jasp.2014.01.028

波箔型径向气体箔片轴承-转子系统升降速动态特性试验

doi: 10.13224/j.cnki.jasp.2014.01.028

哈尔滨工业大学能源科学与工程学院, 哈尔滨 150001

基金项目: 国家自然科学基金（11176010）；航空科学基金（20110377005）

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出版历程
- 收稿日期: 2012-12-07
- 刊出日期: 2014-01-28

Dynamic performance tests of bump-type gas foil journal bearing-rotor system in start-up and shut-down procedures

School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

摘要

摘要: 为了研究以波箔型径向气体箔片轴承为支承的轴承-转子系统动力学特性，专门设计了波箔型径向气体箔片轴承试验台，质量为0.458kg的转子在该试验台上实现了超过80000r/min的运转速度.径向轴承为波箔型径向气体箔片轴承，止推轴承为多叶箔片轴承.试验结果表明：波箔型径向气体箔片轴承能够实现转子高速运行，在转子起飞后具有良好的运行稳定性，其轴承支承处振动位移幅值一直维持在20μm之内.由于驱动涡轮受到不平衡气流力的作用，转轴升速时的起飞转速要高于降速时的起飞转速.
- 波箔型径向气体箔片轴承 /
- 试验台设计 /
- 振动幅值 /
- 起飞转速 /
- 轴心轨迹
Abstract: In order to study the dynamic performance of bearing-rotor system supported by bump-type gas foil journal bearing, a test bed was designed for bump-type gas foil journal bearing. A rotor of 0.458kg including turbine was supported by two bump-type gas foil journal bearings and multi-leaf thrust gas foil bearing, and the speed was more than 80000r/min. The experimental results show that bump-type gas foil journal bearings can offer high-speed operation stability after rotor lift-off, and the vibration displacement amplitude at bearing support is less than 20μm. The rotor lift-off speed in start-up procedure is higher than that in shut-down procedure due to asymmetric drive of turbine.
- bump-type gas foil journal bearing /
- test bed design /
- vibration amplitude /
- lift-off speed /
- axis orbits

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参考文献(17)

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