年次大会講演論文集
Online ISSN : 2433-1325
セッションID: 2926
会議情報
2926 スターブ潤滑を利用した給油だ円ジャーナル軸受の安定化法(S64-3 トライボロジーの基礎と応用(3),S64 トライボロジーの基礎と応用)
落合 成行関口 剛史橋本 巨
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会議録・要旨集 フリー

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抄録
Journal bearings are widely used for supporting high speed rotating machinery such as turbine, compressor and HDD spindle etc, because of their high load carrying capacity, stability and durability. Recently, the engineering trend is oriented to higher speed and smaller sizes of rotating machinery, and then it is important to enhance stabilities for the journal bearings. Tilting pad journal bearing is generally used for high-speed rotating machineries because of their advantages of stabilization. However, there are some problems using for compact size rotating machines for their high manufacturing cost and complicated structure. Therefore, it is necessary to enhance the stability of more simple bearings compared with tilting pad bearing in order to use for small size rotating machinery. This paper describes the stabilization method of elliptical journal bearing, which is high stability compared with circular journal bearing, based on starvation mechanism. It is found that the stabilization of elliptical journal bearings is improved drastically by regulation of the amount of supply oil.
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© 2005 一般社団法人日本機械学会
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