| タイトル | A parameter identification method for the rotordynamic coefficients of a high Reynolds number hydrostatic bearing |
| 著者（英） | Rouvas, C.; Childs, D. W. |
| 著者所属（英） | NASA Headquarters |
| 発行日 | 1993-07-01 |
| 言語 | eng |
| 内容記述 | In identifying the rotordynamic coefficients of a high-Reynolds-number hydrostatic bearing, fluid-flow induced forces present a unique problem, in that they provide an unmeasureable and uncontrollable excitation to the bearing. An analysis method is developed that effectively eliminates the effects of fluid-flow induced excitation on the estimation of the bearing rotordynamic coefficients, by using power spectral densities. In addition to the theoretical development, the method is verified experimentally by single-frequency testing, and repeatability tests. Results obtained for a bearing are the twelve rotordynamic coefficients (stiffness, damping, and inertia coefficients) as functions of eccentricity ratio, speed, and supply pressure. |
| NASA分類 | MECHANICAL ENGINEERING |
| レポートNO | 93A53654 |
| 権利 | Copyright |
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