混相流の数値解法を応用した浮動ブシュ軸受の内側油膜におけるブシュ駆動トルク Bush Driving Torque in Inner Oil Film of Floating Bush Journal Bearings with Numerical Analysis for Multi-Phase Flow Being Applied

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Floating bush journal bearings are widely used to support small-sized high speed rotating machinery. The bearing shows the following peculiar phenomena when the supplied pressure is low. That is, the bush-to journal speed ratio decreases and the disappearance of the oil whip may be observed as the journal rotational speed increases These could be explained qualitatively when the model with the axial oil film rupture being considered is applied to the inner oil film of the bearing. However, the predictions are in quantitatively poor agreement with the measurements. This paper aims at predicting the bush driving torque of the inner oil film by utilizing the cubic interpolated pseudoparticle (CIP) method that has been developed in the numerical analysis of the multi-phase flow. It is found that the predicted torque is much smaller than the torque obtained from the previous model when the journal speed is high. This results from the incursion of the air into the film from the bearing side end. The effect of some design variables such as the surface tension, which cannot be incorporated in the previous model, on the torque is also shown.

収録刊行物

  • トライボロジスト = JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS

    トライボロジスト = JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS 53(9), 612-620, 2008-09-15

    社団法人日本トライボロジー学会

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各種コード

  • NII論文ID(NAID)
    10021919373
  • NII書誌ID(NCID)
    AN10056166
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09151168
  • NDL 記事登録ID
    9652449
  • NDL 雑誌分類
    ZN11(科学技術--機械工学・工業)
  • NDL 請求記号
    Z16-540
  • データ提供元
    CJP書誌  NDL  IR 
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