Rotordynamic-Coefficient and Leakage Characteristics for Hole-Pattern-Stator Annular Gas Seals—Measurements Versus PredictionsSource: Journal of Tribology:;2004:;volume( 126 ):;issue: 002::page 326Author:Dara W. Childs
,
Leland T. Jordan Professor of Mechanical Engineering
,
Jonathan Wade
,
Research Assistant
DOI: 10.1115/1.1611502Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Selected test results are presented for an annular gas seal using a smooth rotor and a hole-pattern-roughness stator for a supply pressure of 70 bar, three pressure ratios, three speeds up to 20,000 rpm, two clearances, and three preswirl ratios. Dynamic data include frequency-dependent direct and cross-coupled stiffness and damping coefficients. Static data include leakage and upstream and downstream pressures and temperatures. Very good agreements are found between measurements and predictions from a two-control-volume bulk-flow model.
keyword(s): Pressure , Flow (Dynamics) , Measurement , Damping , Rotors , Stators , Stiffness , Leakage , Clearances (Engineering) , Temperature , Frequency AND Compressors ,
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| contributor author | Dara W. Childs | |
| contributor author | Leland T. Jordan Professor of Mechanical Engineering | |
| contributor author | Jonathan Wade | |
| contributor author | Research Assistant | |
| date accessioned | 2017-05-09T00:14:34Z | |
| date available | 2017-05-09T00:14:34Z | |
| date copyright | April, 2004 | |
| date issued | 2004 | |
| identifier issn | 0742-4787 | |
| identifier other | JOTRE9-28722#326_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/130901 | |
| description abstract | Selected test results are presented for an annular gas seal using a smooth rotor and a hole-pattern-roughness stator for a supply pressure of 70 bar, three pressure ratios, three speeds up to 20,000 rpm, two clearances, and three preswirl ratios. Dynamic data include frequency-dependent direct and cross-coupled stiffness and damping coefficients. Static data include leakage and upstream and downstream pressures and temperatures. Very good agreements are found between measurements and predictions from a two-control-volume bulk-flow model. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Rotordynamic-Coefficient and Leakage Characteristics for Hole-Pattern-Stator Annular Gas Seals—Measurements Versus Predictions | |
| type | Journal Paper | |
| journal volume | 126 | |
| journal issue | 2 | |
| journal title | Journal of Tribology | |
| identifier doi | 10.1115/1.1611502 | |
| journal fristpage | 326 | |
| journal lastpage | 333 | |
| identifier eissn | 1528-8897 | |
| keywords | Pressure | |
| keywords | Flow (Dynamics) | |
| keywords | Measurement | |
| keywords | Damping | |
| keywords | Rotors | |
| keywords | Stators | |
| keywords | Stiffness | |
| keywords | Leakage | |
| keywords | Clearances (Engineering) | |
| keywords | Temperature | |
| keywords | Frequency AND Compressors | |
| tree | Journal of Tribology:;2004:;volume( 126 ):;issue: 002 | |
| contenttype | Fulltext |