Palm-sized microturbomachinery have broad potential applications in micropower generation areas, such as air/fuel management systems for various fuel cells, propulsion engine for unmanned micro-air vehicles, power generation turbines for robots, small satellites, etc. This paper introduces design and manufacturing processes of mesoscale foil gas bearings applicable to the microturbomachinery and also presents its performances predicted from nonlinear orbit simulations. X-ray and ultraviolet lithography were explored as promising manufacturing tools of elastic foundations for the mesoscale foil gas bearings. Designed and manufactured mesoscale foil gas bearings have unique design features that precision-machined foil bearings cannot provide, such as easy control of mechanical properties of elastic foundations, a simple assembly process, and easy control of bearing preload through lithographic pattern. The manufactured bearing performance was predicted using a time-domain orbit simulation, and results are presented.
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July 2009
Research Papers
Mesoscale Foil Gas Bearings for Palm-Sized Turbomachinery: Design, Manufacturing, and Modeling
Daejong Kim,
Daejong Kim
Mechanical and Aerospace Engineering,
e-mail: daejongkim@uta.edu
University of Texas at Arlington
, 500 West 1st Street, Arlington, TX 76019
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Andron Creary,
Andron Creary
Department of Mechanical Engineering,
Texas A&M University
, 3123 TAMU, College Station, TX 77843
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Suk Sang Chang,
Suk Sang Chang
Pohang Accelerator Laboratory,
POSTECH
, San-31 Hyojadong, Pohang 790-784, Republic of Korea
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Jong Hyun Kim
Jong Hyun Kim
Pohang Accelerator Laboratory,
POSTECH
, San-31 Hyojadong, Pohang 790-784, Republic of Korea
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Daejong Kim
Mechanical and Aerospace Engineering,
University of Texas at Arlington
, 500 West 1st Street, Arlington, TX 76019e-mail: daejongkim@uta.edu
Andron Creary
Department of Mechanical Engineering,
Texas A&M University
, 3123 TAMU, College Station, TX 77843
Suk Sang Chang
Pohang Accelerator Laboratory,
POSTECH
, San-31 Hyojadong, Pohang 790-784, Republic of Korea
Jong Hyun Kim
Pohang Accelerator Laboratory,
POSTECH
, San-31 Hyojadong, Pohang 790-784, Republic of KoreaJ. Eng. Gas Turbines Power. Jul 2009, 131(4): 042502 (10 pages)
Published Online: April 10, 2009
Article history
Received:
December 16, 2007
Revised:
November 17, 2008
Published:
April 10, 2009
Citation
Kim, D., Creary, A., Chang, S. S., and Kim, J. H. (April 10, 2009). "Mesoscale Foil Gas Bearings for Palm-Sized Turbomachinery: Design, Manufacturing, and Modeling." ASME. J. Eng. Gas Turbines Power. July 2009; 131(4): 042502. https://doi.org/10.1115/1.3077643
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