Analysis of Dynamic Tilt Stiffness and Damping Coefficients of Externally Pressurized Porous Gas Journal BearingsSource: Journal of Tribology:;1978:;volume( 100 ):;issue: 003::page 359Author:N. S. Rao
DOI: 10.1115/1.3453185Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A theoretical estimate of dynamic characteristics in terms of stiffness and damping of an externally pressurized gas-lubricated porous journal under tilting mode of vibration is made. The governing nonlinear partial differential equations in the porous medium and in the bearing clearance are linearized using a first-order perturbation analysis. The tilt stiffness and damping are then determined from the solution of the resulting linear partial differential equations numerically. The effect of feeding parameter, supply pressure, porosity parameter, L/D ratio and eccentricity ratio on these two above characteristics is shown.
keyword(s): Damping , Stiffness , Journal bearings , Partial differential equations , Porosity , Vibration , Pressure , Porous materials , Clearances (Engineering) AND Bearings ,
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| contributor author | N. S. Rao | |
| date accessioned | 2017-05-08T23:05:43Z | |
| date available | 2017-05-08T23:05:43Z | |
| date copyright | July, 1978 | |
| date issued | 1978 | |
| identifier issn | 0742-4787 | |
| identifier other | JOTRE9-28618#359_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/91560 | |
| description abstract | A theoretical estimate of dynamic characteristics in terms of stiffness and damping of an externally pressurized gas-lubricated porous journal under tilting mode of vibration is made. The governing nonlinear partial differential equations in the porous medium and in the bearing clearance are linearized using a first-order perturbation analysis. The tilt stiffness and damping are then determined from the solution of the resulting linear partial differential equations numerically. The effect of feeding parameter, supply pressure, porosity parameter, L/D ratio and eccentricity ratio on these two above characteristics is shown. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Analysis of Dynamic Tilt Stiffness and Damping Coefficients of Externally Pressurized Porous Gas Journal Bearings | |
| type | Journal Paper | |
| journal volume | 100 | |
| journal issue | 3 | |
| journal title | Journal of Tribology | |
| identifier doi | 10.1115/1.3453185 | |
| journal fristpage | 359 | |
| journal lastpage | 363 | |
| identifier eissn | 1528-8897 | |
| keywords | Damping | |
| keywords | Stiffness | |
| keywords | Journal bearings | |
| keywords | Partial differential equations | |
| keywords | Porosity | |
| keywords | Vibration | |
| keywords | Pressure | |
| keywords | Porous materials | |
| keywords | Clearances (Engineering) AND Bearings | |
| tree | Journal of Tribology:;1978:;volume( 100 ):;issue: 003 | |
| contenttype | Fulltext |