This paper describes the stabilization method for small-bore circular journal bearings using starved lubrication. First, we describe the experimental examination to confirm the effect of supply oil conditions on stability of circular journal bearing by using a high-speed test rig. Then, the theoretical model considering the effect of amount of supply oil is discussed. Journal center trajectories are calculated by nonlinear motion analysis under various conditions. The theoretical results agree well with the experimental ones for three types of supply oil conditions and the mechanism of the stabilization by using the starved lubrication for small-bore journal bearings is clarified. Moreover, we suggest a supply oil control mechanism to stabilize the journal bearing using starved lubrication. Finally, the effectiveness of the proposed control mechanism on stability for high-speed small-bore journal bearings is verified experimentally.
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e-mail: hiromu@keyaki.cc.u-tokai.ac.jp
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January 2010
Research Papers
Stabilization Method for Small-Bore Journal Bearings Utilizing Starved Lubrication
Hiromu Hashimoto,
Hiromu Hashimoto
Professor
Graduate School of Science and Technology,
e-mail: hiromu@keyaki.cc.u-tokai.ac.jp
Tokai University
, 1117 Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japan
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Masayuki Ochiai
Masayuki Ochiai
Associate Professor
Graduate School of Science and Technology,
Tokai University
, 1117 Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japan
Search for other works by this author on:
Hiromu Hashimoto
Professor
Graduate School of Science and Technology,
Tokai University
, 1117 Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japane-mail: hiromu@keyaki.cc.u-tokai.ac.jp
Masayuki Ochiai
Associate Professor
Graduate School of Science and Technology,
Tokai University
, 1117 Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, JapanJ. Tribol. Jan 2010, 132(1): 011703 (7 pages)
Published Online: November 17, 2009
Article history
Received:
August 22, 2008
Revised:
July 30, 2009
Online:
November 17, 2009
Published:
November 17, 2009
Citation
Hashimoto, H., and Ochiai, M. (November 17, 2009). "Stabilization Method for Small-Bore Journal Bearings Utilizing Starved Lubrication." ASME. J. Tribol. January 2010; 132(1): 011703. https://doi.org/10.1115/1.4000269
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