摘要
分析讨论了轴 轴承摩擦副系统中,当轴受载变形导致轴颈倾斜时,径向滑动轴承的流体动力润滑特性。推 导了轴颈倾斜时的轴承油膜厚度表达式,计算了不同轴载荷情况下,轴承油膜压力、端泄流量和轴颈摩擦系数。计 算结果表明,轴颈倾斜时,轴承油膜压力分布、最大油膜压力、油膜厚度分布和最小油膜厚度等都有明显的变化。因 此,进行计入轴变形导致轴颈倾斜的径向滑动轴承润滑分析研究是非常必要的。
Hydrodynamic lubrication characteristics of a journal bearing considering misalignment caused by shaft deformation are analyzed in shaft-bearing friction pair system. Film thickness expression of misaligned journal bearing is inferred. The film pressure, leakage flow-rate and friction coefficient of a journal bearing are calculated for different loads acted on shaft. The results show that there are obvious changes at film pressure distribution, maximum film pressure, film thickness distribution and minimum film thickness when there is misalignment. Therefore, it is necessary to analyze the lubrication of misaligned journal bearing caused by shaft deformation.
出处
《机械科学与技术》
CSCD
北大核心
2005年第2期204-207,共4页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(50175023)资助
关键词
轴变形
轴颈倾斜
径向滑动轴承
润滑分析
Shaft deformation
Misalignment
Journal bearing
Lubrication analysis
