| タイトル | Effect of longitudinal surface finish on elastohydrodynamic lubrication |
| 本文（外部サイト） | http://hdl.handle.net/2060/19750015918 |
| 著者（英） | Kannel, J. W.; Dow, T. A.; Parker, R. J. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1975-06-01 |
| 言語 | eng |
| 内容記述 | The effect of longitudinal-lay surface finish on the elastohydrodynamic film thickness and the percentage of film between rolling disks in contact were evaluated using a rolling disk apparatus. Film thickness was measured by transmitted X-rays, and percentage of film was monitored by an alternating-current continuity circuit. Disk finish was varied on both the crowned upper disk and the cylindrical lower disk. A type-2 ester and a synthetic paraffinic oil were used as lubricants. It was shown that the roughness with longitudinal lay has a deleterious effect on both film thickness and percentage of film. Measured film thicknesses for the two lubricants were comparable at equivalent test conditions. The percentage of film where a change in surface topography was observed was approximately 20 percent for the synthetic paraffinic oil and 10 percent for the type-2 ester. |
| NASA分類 | MECHANICAL ENGINEERING |
| レポートNO | 75N23990
NASA-TN-D-7967
E-7971 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/189984 |
