Performance Studies of Powder-Lubricated Journal Bearing Having Different Pocket Shapes at Cylindrical Bore SurfaceSource: Journal of Tribology:;2018:;volume( 140 ):;issue: 003::page 31704DOI: 10.1115/1.4038678Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It becomes impossible to use conventional fluid film journal bearings in the hot working environments (500–800 °C) due to rapid thermal degradation of lubricating oils. Under this situation, powder lubricants prove beneficial in spite of high friction values associated with them in comparison to lubricating oils. Thus, reduction of friction in powder-lubricated journal bearings is an essential task for making the operation energy efficient. Hence, the objective of this paper is to explore the reduction of coefficient of friction in a powder-lubricated journal bearing employing different pocket shapes (elliptical, parabolic, rectangular, and trapezoidal) placed on bore surface. Based on the investigations reported herein, it is found that the journal bearing having rectangular pocket yields least coefficient of friction among all the cases.
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| contributor author | Rahmani, Faisal | |
| contributor author | Pandey, R. K. | |
| contributor author | Dutt, J. K. | |
| date accessioned | 2019-02-28T11:08:59Z | |
| date available | 2019-02-28T11:08:59Z | |
| date copyright | 1/16/2018 12:00:00 AM | |
| date issued | 2018 | |
| identifier issn | 0742-4787 | |
| identifier other | trib_140_03_031704.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4253202 | |
| description abstract | It becomes impossible to use conventional fluid film journal bearings in the hot working environments (500–800 °C) due to rapid thermal degradation of lubricating oils. Under this situation, powder lubricants prove beneficial in spite of high friction values associated with them in comparison to lubricating oils. Thus, reduction of friction in powder-lubricated journal bearings is an essential task for making the operation energy efficient. Hence, the objective of this paper is to explore the reduction of coefficient of friction in a powder-lubricated journal bearing employing different pocket shapes (elliptical, parabolic, rectangular, and trapezoidal) placed on bore surface. Based on the investigations reported herein, it is found that the journal bearing having rectangular pocket yields least coefficient of friction among all the cases. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Performance Studies of Powder-Lubricated Journal Bearing Having Different Pocket Shapes at Cylindrical Bore Surface | |
| type | Journal Paper | |
| journal volume | 140 | |
| journal issue | 3 | |
| journal title | Journal of Tribology | |
| identifier doi | 10.1115/1.4038678 | |
| journal fristpage | 31704 | |
| journal lastpage | 031704-12 | |
| tree | Journal of Tribology:;2018:;volume( 140 ):;issue: 003 | |
| contenttype | Fulltext |