NDLI: Static performance of multi-leaf compliant Gas Foil Journal Bearings with assembly preload

Content Provider	IEEE Xplore Digital Library
Author	Wenbo Duan Yanhua Sun Haipeng Geng Chengwei Ding Weijian Yang Lie Yu
Copyright Year	2013
Description	Author affiliation: State Key Lab. of Strength & Vibration for Mech. Struct., Xi'an Jiaotong Univ., Xi'an, China (Wenbo Duan; Yanhua Sun; Haipeng Geng; Chengwei Ding; Weijian Yang) \|\| Inst. of Mechatron. & Inf. Syst., Xi'an Jiaotong Univ., Xi'an, China (Lie Yu)
Abstract	Gas Foil Bearings (GFBs) are self-acting hydrodynamic bearings and potential alternatives to rolling element bearings for high speed applications. In order to increase load capacity, the assembly preload is often added to GFBs now. Firstly, for multi-leaf GFBs with assembly preload, this paper presents a method to fabricate the bearings with assembly preload, and the precision of the shape of the top foils is discussed. Then, the bearing deflection with static load of the foil bearing was measured. A static load, which is up to 340N, could be applied to the tested GFBs with assembly preload by a mechanical loading device, and a strain gauge type load cell was used to measure the applied static load. Finally, the stiffness coefficient of the tested bearing was estimated and a cubic polynomial of stiffness coefficient for test bearings is estimated using the measured static load versus deflection test data. The results show the radius of top foils which were fabricated by this method can be changed by different pressures and the accuracy of foil shape is improved. The load capacity and stiffness are both two times larger than bump-type GFBs.
Starting Page	681
Ending Page	685
File Size	954845
Page Count	5
File Format	PDF
ISBN	9781467355575
e-ISBN	9781467355605
DOI	10.1109/ICMA.2013.6617998
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-08-04
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Assembly Shape Rotors Heat treatment Shafts Metals Springs static stiffness multi-leaf foil bearing assembly preload
Content Type	Text
Resource Type	Article

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