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我院青年教师朱军超的研究成果“Analysis of misaligned journal bearing lubrication performance considering the effect of lubricant couple stress and shear thinning”在期刊《Journal of Mechanics》上发表

发布时间:2021-12-01浏览次数:741

我院青年教师朱军超的研究成果“Analysis of misaligned journal bearing lubrication
 performance considering the effect of lubricant couple stress and shear thinning
”在期刊《Journal of Mechanics》上发表。

论文简介如下:

This paper investigates journal bearings, and builds a lubrication model taking into account misalignment, the lubricant couple stress effect and shear thinning. In order to explore the sensitivity of couple stress fluid lubrication performance to oil flm thickness, we introduce the critical oil flm thickness coefcient. The results show that the sensitivity increases with the increase of the couple stress coefcient, and it is highest in the area of minimum oil flm thickness. Compared with a parallel journal, increases in the misalignment angle strengthen the effect of couple stress. Shear thinning also plays an important role in bearing lubrication performance. For a low oil inlet temperature, the effect of shear thinning increases with the increase of the couple stress parameter. For a high oil inlet temperature, the influence is negligible. An increase in the misalignment angle will not further enhance the effect of shear thinning.



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