重载点接触热弹流润滑中滚子表面剪应力分析
The thermal EHL is simulated by an aviation lubricating oil HKD-1 in a point contact under heavier load and computed the shear stress distributions at a roller surface. The computed results by using two different rheological models are compared and are examined by the traction test. The results show...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Transmission
2008-01-01
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| Series: | Jixie chuandong |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2008.06.007 |
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| Summary: | The thermal EHL is simulated by an aviation lubricating oil HKD-1 in a point contact under heavier load and computed the shear stress distributions at a roller surface. The computed results by using two different rheological models are compared and are examined by the traction test. The results show that the non-Newtonian characteristic of lubricants is more important for heavier load （p0>1GPa） in EHL. As slide-to-roll ratio increasing,the shear stress rises. The predicted stresses by using the Evans-Johnson model are more accurate than those by using the Newtonian model. When the slide-to-roll ratio is large,the predicted shear stress distribution by using the Newtonian model is distortion. |
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| ISSN: | 1004-2539 |