共查询到18条相似文献,搜索用时 62 毫秒
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磁流体润滑滑动轴承承载能力计算与分析 总被引:3,自引:2,他引:3
确定磁流体润滑滑动轴承承载能力的大小是其获得应用的首要条件。本文依据Rosensweig理论模型在导出其油膜压力分布的雷诺方程的基础上,计算了这种新型轴承的承载能力,并对其影响因素进行了分析,得出了合理设计该型轴承的重要结论。 相似文献
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水润滑陶瓷滑动轴承最小水膜的理论计算 总被引:1,自引:0,他引:1
水润滑陶瓷滑动轴承正常工作的关键因素是在工作面间形成一定厚度的水膜。参照传统滑动轴承的计算准则,采取一系列改进措施,使计算出的最小水膜厚度大于其许用值,以确保陶瓷滑动轴承的液体润滑条件,为今后水润滑陶瓷滑动轴承的研究提供了参考数据。 相似文献
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本文对高速轻载,高速重载流体动压径向滑动轴承分别进行了热效应和热弹性分析及试验研究,给出了高速轴承不同承载情况下的轴承静特性的润滑计算方法。理论计算结果与试验数据具有较好的一致性。 相似文献
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Ferrohydrodynamic lubrication in journal bearings by considering cavitation boundary conditions is studied. It is assumed that the magnetization vector is not parallel to the magnetic field vector. Various bearing characteristics have been studied and it is seen that qualitative behavior of these characteristics remains similar to that in the case of non-ferromagnetic fluid. However, a significant quantitative enhancement of these characteristics is observed. 相似文献
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弹性变形对径向轴承弹流润滑性能的影响 总被引:3,自引:2,他引:3
本文以上具有不同弹性模量、泊松系数的两种轴承材料为例分析了弹性变形对有限长径向滑动轴承的弹流润滑性能的影响。流体动力润滑方程采用雷诺方程,应用力学问题的通用有限元软件MARC产生柔度矩阵计算弹性变形。对比分析了二种轴承的油膜压力分布、油膜厚度分布、最小油膜厚度以及承载能力。 相似文献
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A potentially powerful effect on the characteristics of plain journal bearings is local thermal deformation of the bearing surface. Although there are a few analyses that consider the effect, it is ignored by most journal bearing codes used by industry. There is also almost no experimental data in the literature that focuses on this effect. To generate such data, two identical, 101 mm dia., 57 mm long bearings—one fabricated from steel and one from bronze—have been tested in a precision journal bearing test rig. Comparisons between shaft displacement data for steady loading of the two bearings show that the deformations are important to consider. 相似文献
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