Development and Application of Integrated Aerodynamic Protuberant Foil Journal and Thrust Bearing in Turboexpander

IF 0.9 Q4 ENGINEERING, MECHANICAL

International Journal of Rotating Machinery Pub Date : 2017-12-31 DOI:10.1155/2017/8430943

T. Lai, Yu Guo, Wen Wang, Yu Wang, Yu Hou

{"title":"Development and Application of Integrated Aerodynamic Protuberant Foil Journal and Thrust Bearing in Turboexpander","authors":"T. Lai, Yu Guo, Wen Wang, Yu Wang, Yu Hou","doi":"10.1155/2017/8430943","DOIUrl":null,"url":null,"abstract":"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.","PeriodicalId":46335,"journal":{"name":"International Journal of Rotating Machinery","volume":" ","pages":"1-12"},"PeriodicalIF":0.9000,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2017/8430943","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Rotating Machinery","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1155/2017/8430943","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}

引用次数: 8

Abstract

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.

查看原文本刊更多论文

涡轮膨胀机气动凸叶轴颈与推力轴承的研制与应用

铝箔轴承为转子-轴承系统提供了柔性支撑和适度的库仑摩擦，有利于高速旋转机械的稳定性和可靠性。本文在150 m3·h−1的空气分离涡轮膨胀机上应用了流体动力润滑箔片轴颈和箔片推力轴承。在轴承中，由于其易于制造和组装的优点，选择凸起的箔作为支撑副箔。在集成到涡轮膨胀机之前，分别测试了轴承的静载荷和偏转。然后，利用最小二乘法对滑动轴承和止推轴承的载荷和挠度曲线进行多项式拟合。然后，对转子-轴承系统进行了瞬态加速、高速和减速过程的性能测试。在试验中，由水动力箔片轴承支撑的涡轮膨胀机运行平稳，重复性好。涡轮膨胀机最大转子转速达到52000转/分，采用流体动力润滑凸型箔轴承。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Rotating Machinery ENGINEERING, MECHANICAL-

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

25 weeks

期刊介绍： This comprehensive journal provides the latest information on rotating machines and machine elements. This technology has become essential to many industrial processes, including gas-, steam-, water-, or wind-driven turbines at power generation systems, and in food processing, automobile and airplane engines, heating, refrigeration, air conditioning, and chemical or petroleum refining. In spite of the importance of rotating machinery and the huge financial resources involved in the industry, only a few publications distribute research and development information on the prime movers. This journal is the first source to combine the technology, as it applies to all of these specialties, previously scattered throughout literature.