Analytical Evaluation of the Static and Dynamic Characteristics of Three Lobe Journal Bearings With Finite LengthSource: Journal of Tribology:;2015:;volume( 137 ):;issue: 004::page 41701Author:Chasalevris, Athanasios
DOI: 10.1115/1.4030023Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The threelobe bearings widely used in rotating machinery follow the design data evaluated using numerical methods for the solution of the Reynolds equation. This paper defines exact and approximate analytical solutions of the Reynolds equation for the case of threelobe bearings with finite length. Dynamic characteristics are provided analytically with closedform expressions for laminar regimes of operation, using an approximate analytical solution that proves to be reliable and of low cost of evaluation time. The results for eccentricity ratio, equilibrium locus, stiffness and damping coefficients are presented for a range of Sommerfeld number and different cases of load orientation and compared with theoretical and experimental data from the literature.
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| contributor author | Chasalevris, Athanasios | |
| date accessioned | 2017-05-09T01:24:16Z | |
| date available | 2017-05-09T01:24:16Z | |
| date issued | 2015 | |
| identifier issn | 0742-4787 | |
| identifier other | trib_137_04_041701.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/159858 | |
| description abstract | The threelobe bearings widely used in rotating machinery follow the design data evaluated using numerical methods for the solution of the Reynolds equation. This paper defines exact and approximate analytical solutions of the Reynolds equation for the case of threelobe bearings with finite length. Dynamic characteristics are provided analytically with closedform expressions for laminar regimes of operation, using an approximate analytical solution that proves to be reliable and of low cost of evaluation time. The results for eccentricity ratio, equilibrium locus, stiffness and damping coefficients are presented for a range of Sommerfeld number and different cases of load orientation and compared with theoretical and experimental data from the literature. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Analytical Evaluation of the Static and Dynamic Characteristics of Three Lobe Journal Bearings With Finite Length | |
| type | Journal Paper | |
| journal volume | 137 | |
| journal issue | 4 | |
| journal title | Journal of Tribology | |
| identifier doi | 10.1115/1.4030023 | |
| journal fristpage | 41701 | |
| journal lastpage | 41701 | |
| identifier eissn | 1528-8897 | |
| tree | Journal of Tribology:;2015:;volume( 137 ):;issue: 004 | |
| contenttype | Fulltext |