書誌事項
- タイトル別名
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- Effects of an Accommodation Coefficient on the Stresses at the Surface of Slider Gas Bearings with Nano-Meter Spacings. An Analysis Method for Shear Stress and Comparisons with the DSMC Results.
- ブンシ キタイ ジュンカツ トクセイ ニ オヨボス キョウカイメン ノ テキオウ ケイスウ ノ エイキョウ センダン オウリョク ノ カイホウ シュホウ ト DSMCホウ ニ ヨル ケッカ ト ノ ヒカク
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This paper clarified the effects of accommodation coefficient, which characterize the gas surface scattering at the boundary surfaces, on molecular gas film lubrication charcteristics by the use of the molecular gas film lubrication (MGL) theory and the Direct Simulations Monte Carlo (DSMC) technique. Using the MGL theory, flow rate coefficient QP in the MGL equation and shear stress coefficient WC in Kang's formula, which reflect molecular gas effects, are rigorously calculated with accommodation coefficient α and inverse Knudsen number D as a parameters. An inverse step-type slider with nano-meter spacings was analyzed by the use of these coefficients, and the lubrication characteristics especially normal pressures and shearing stresses are compared with each simulation method. It is found that pressures and shearing stresses by the two methods are in good agreement with each accommodation coefficient. This means that MGL theory and these coefficients we calculated will be correct.
収録刊行物
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- 日本機械学会論文集Ｃ編
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日本機械学会論文集Ｃ編 67 (663), 3618-3626, 2001
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390001206356074496
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- NII論文ID
- 130004084376
- 110002550857
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- NII書誌ID
- AN00187463
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- COI
- 1:CAS:528:DC%2BD38XhtlCrsrc%3D
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- ISSN
- 18848354
- 03875024
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- NDL書誌ID
- 5985958
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可