Development and Application of Integrated Aerodynamic Protuberant Foil Journal and Thrust Bearing in Turboexpander
Foil bearing provides compliant support and moderate Coulomb friction for rotor-bearing system, which is conducive to stability and reliability of high speed rotating machinery. In this paper, both hydrodynamic lubricated foil journal and foil thrust bearings are applied in a 150 m3·h−1 turboexpande...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2017/8430943 |
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| _version_ | 1849468004434182144 |
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| author | Tianwei Lai Yu Guo Wei Wang Yu Wang Yu Hou |
| author_facet | Tianwei Lai Yu Guo Wei Wang Yu Wang Yu Hou |
| author_sort | Tianwei Lai |
| collection | DOAJ |
| description | Foil bearing provides compliant support and moderate Coulomb friction for rotor-bearing system, which is conducive to stability and reliability of high speed rotating machinery. In this paper, both hydrodynamic lubricated foil journal and foil thrust bearings are applied in a 150 m3·h−1 turboexpander for air separation. In the bearings, protuberant foil is chosen as the supporting subfoil due to its merits of easy fabrication and assembly. Static loading and deflection of the bearings are tested, respectively, before integration into the turboexpander. Afterwards, the loading and deflection curves of the journal and thrust bearings are polynomial fitted using least-square method. Then, performance tests are carried out on the rotor-bearing system, including transient speed-up, high speed, and speed-down processes. In the tests, the turboexpander supported by the hydrodynamic foil bearings operates smoothly with repeatability. Maximal rotor speed of the turboexpander reaches 52000 rpm with hydrodynamic lubricated protuberant foil bearings. |
| format | Article |
| id | doaj-art-df63d5367f9345b08311b8be4de674b3 |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-df63d5367f9345b08311b8be4de674b32025-08-20T03:25:59ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342017-01-01201710.1155/2017/84309438430943Development and Application of Integrated Aerodynamic Protuberant Foil Journal and Thrust Bearing in TurboexpanderTianwei Lai0Yu Guo1Wei Wang2Yu Wang3Yu Hou4State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaFoil bearing provides compliant support and moderate Coulomb friction for rotor-bearing system, which is conducive to stability and reliability of high speed rotating machinery. In this paper, both hydrodynamic lubricated foil journal and foil thrust bearings are applied in a 150 m3·h−1 turboexpander for air separation. In the bearings, protuberant foil is chosen as the supporting subfoil due to its merits of easy fabrication and assembly. Static loading and deflection of the bearings are tested, respectively, before integration into the turboexpander. Afterwards, the loading and deflection curves of the journal and thrust bearings are polynomial fitted using least-square method. Then, performance tests are carried out on the rotor-bearing system, including transient speed-up, high speed, and speed-down processes. In the tests, the turboexpander supported by the hydrodynamic foil bearings operates smoothly with repeatability. Maximal rotor speed of the turboexpander reaches 52000 rpm with hydrodynamic lubricated protuberant foil bearings.http://dx.doi.org/10.1155/2017/8430943 |
| spellingShingle | Tianwei Lai Yu Guo Wei Wang Yu Wang Yu Hou Development and Application of Integrated Aerodynamic Protuberant Foil Journal and Thrust Bearing in Turboexpander International Journal of Rotating Machinery |
| title | Development and Application of Integrated Aerodynamic Protuberant Foil Journal and Thrust Bearing in Turboexpander |
| title_full | Development and Application of Integrated Aerodynamic Protuberant Foil Journal and Thrust Bearing in Turboexpander |
| title_fullStr | Development and Application of Integrated Aerodynamic Protuberant Foil Journal and Thrust Bearing in Turboexpander |
| title_full_unstemmed | Development and Application of Integrated Aerodynamic Protuberant Foil Journal and Thrust Bearing in Turboexpander |
| title_short | Development and Application of Integrated Aerodynamic Protuberant Foil Journal and Thrust Bearing in Turboexpander |
| title_sort | development and application of integrated aerodynamic protuberant foil journal and thrust bearing in turboexpander |
| url | http://dx.doi.org/10.1155/2017/8430943 |
| work_keys_str_mv | AT tianweilai developmentandapplicationofintegratedaerodynamicprotuberantfoiljournalandthrustbearinginturboexpander AT yuguo developmentandapplicationofintegratedaerodynamicprotuberantfoiljournalandthrustbearinginturboexpander AT weiwang developmentandapplicationofintegratedaerodynamicprotuberantfoiljournalandthrustbearinginturboexpander AT yuwang developmentandapplicationofintegratedaerodynamicprotuberantfoiljournalandthrustbearinginturboexpander AT yuhou developmentandapplicationofintegratedaerodynamicprotuberantfoiljournalandthrustbearinginturboexpander |