空気静圧ジャーナル軸受における空気膜温度と熱配分割合

• 大石 進

  青山学院大学理工学部

• 松崎 靖

  青山学院大学大学院理工学研究科

書誌事項

タイトル別名

• Air Film Temperature and Heat Partition Ratio in Aerostatic Journal Bearing
• クウキ セイアツ ジャーナル ジクウケ ニ オケル クウキ マク オンド ト ネツ ハイブン ワリアイ

抄録

The objective of the present paper is to clarify the heat partition ratio in spindle units with aerostatic bearings. Heat generated in the journal bearing clearance is transferred to the spindle, bush/housing and exhaust air. In order to develop the thermal model on the basis of experimental evidences, a test machine was used running to a maximum rotational speed of 20000 min^-1 with a 60 mm diameter spindle supported by aerostatic journal bearings of 20 μm radial clearance, and the temperatures were measured of the housing, bush and the interface between the bush and air film as well as the inlet and outlet air. A finite element model has been developed to evaluate the partition ratio. The analysis shows that the ratios of the heat flowing into the spindle, into the bush and into the exhaust air to the generated heat are about 1/3 respectively in the test air spindle unit, and that increasing the bearing clearance is most effective to reduce the air film temperature.

収録刊行物

• 精密工学会誌論文集

  精密工学会誌論文集 71 (10), 1239-1244, 2005

  公益社団法人 精密工学会

キーワード

• aerostatic journal bearing
• temperature
• heat partition ratio
• finite element method

詳細情報

• CRID: 1390001205282004224
• NII論文ID: 110001868404
• NII書誌ID: AA11966630
• DOI: 10.2493/jspe.71.1239
• ISSN: 18818722
• ISSN: 13488716
• ISSN: 13488724
• NDL書誌ID: 7686657
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7686657
• データソース種別:
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  • NDL
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  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可