| Study on lift-up speed of aerodynamic compliant foil thrust bearings |
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| 引用本文： | 杨利花 石建华 刘恒 虞烈. Study on lift-up speed of aerodynamic compliant foil thrust bearings[J]. 西安交通大学学报(英文版), 2007, 19(1): 63-66,85 |
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| 作者姓名： | 杨利花 石建华 刘恒 虞烈 |
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| 作者单位： | [1]Mechatronics and Information System Institute of Xi＇an Jiaotong University, Xi＇an 710049, China [2]Mechatronics Engineering Department of Lanzhou Jiaotong University, Lanzhou 730070, China |
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| 基金项目： | 国家自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | Objective The experimental study on the lift-up speed of a new kind of compliant aerodynamic foil thrust hearings was performed on the multifunetional test rig established for testing the performances of foil gas bearings. Methods The lift-up speed of foil gas thrust hearing under given axial load was analyzed through the spectrum of axial displacement response in frequency domain. Results The test results indicated that the difference in the spectrum of axial displacement responses before and after lifting up of the rotor was obvious. After lifting up of the rotor, there were only larger components of rotation frequency and lower harmanie frequencies. If the rotor wasn＇t lift-up, there were also larger components of other frequencies in the spectrum. Conclusion So by analyzing the spectrum of axial displacement response, the results showed that the lift-up speed was about 1 860 rpm when the axial load was 31N.
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| 关 键 词： | 箔片止推动压轴承 提升速度 动力学 位移响应 |
| 文章编号： | 1671-8267（2007）01-0063-04 |
Study on lift-up speed of aerodynamic compliant foil thrust bearings |
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| Yang Lihua,Shi Jianhua,Liu Heng,Yu Lie. Study on lift-up speed of aerodynamic compliant foil thrust bearings[J]. Academic Journal of Xi’an Jiaotong University, 2007, 19(1): 63-66,85 |
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| Authors: | Yang Lihua Shi Jianhua Liu Heng Yu Lie |
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| Abstract: | Objective The experimental study on the lift-up speed of a new kind of compliant aerodynamic foil thrust bearings was performed on the multifunctional test rig established for testing the performances of foil gas bearings. Methods The lift-up speed of foil gas thrust bearing under given axial load was analyzed through the spectrum of axial displacement response in frequency domain. Results The test results indicated that the difference in the spectrum of axial displacement responses before and after lifting up of the rotor was obvious. After lifting up of the rotor, there were only larger components of rotation frequency and lower harmanic frequencies. If the rotor wasn't lift-up, there were also larger components of other frequencies in the spectrum. Conclusion So by analyzing the spectrum of axial displacement response, the results showed that the lift-up speed was about 1 860 rpm when the axial load was 31N. |
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| Keywords: | foil gas thrust bearings frequency domain lift-up speed displacement response |
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