| contributor author | David P. Fleming | |
| contributor author | William J. Thayer | |
| contributor author | Robert E. Cunningham | |
| date accessioned | 2017-05-08T23:03:58Z | |
| date available | 2017-05-08T23:03:58Z | |
| date copyright | January, 1977 | |
| date issued | 1977 | |
| identifier issn | 0742-4787 | |
| identifier other | JOTRE9-28605#101_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/90531 | |
| description abstract | A rigid vertical shaft was operated with known amounts of unbalance at speeds up to 30,000 rpm and gas supply pressure ratios to 4.8. From measured amplitude and phase angle data, dynamic stiffness and damping coefficients of the bearings were determined. The measured stiffness was proportional to the supply pressure, while damping was little affected by supply pressure. Damping dropped rapidly as the fractional frequency whirl threshold was approached. A small eccentricity analysis overpredicted the stiffness by 4 to 55 percent. Predicted damping was close to measured at low speeds but higher at high speeds. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Dynamic Stiffness and Damping of Externally Pressurized Gas Lubricated Journal Bearings | |
| type | Journal Paper | |
| journal volume | 99 | |
| journal issue | 1 | |
| journal title | Journal of Tribology | |
| identifier doi | 10.1115/1.3452954 | |
| journal fristpage | 101 | |
| journal lastpage | 105 | |
| identifier eissn | 1528-8897 | |
| keywords | Damping | |
| keywords | Pressurized gas | |
| keywords | Stiffness | |
| keywords | Journal bearings | |
| keywords | Pressure | |
| keywords | Bearings AND Whirls | |
| tree | Journal of Tribology:;1977:;volume( 099 ):;issue: 001 | |
| contenttype | Fulltext | |