摘要
以高铁轴承试验台陪试轴承腔为研究对象,根据陪试轴承的载荷和转速,采用VOF模型和RNGκ-ε湍流模型对高铁轴承试验台陪试轴承腔简化模型内气液两相流进行数值模拟,分析轴承转速、回油孔直径对陪试轴承腔压的影响,获得气液两相流中润滑油压力场和速度场在轴承腔内的分布情况。结果表明,随着试验台陪试主轴转速的提高,轴承腔压随之增大;随着回油孔直径增大,出口附近轴承腔压降低比其他部位腔压变化更为明显。
Taking the test bearing chamber of high-speed railway bearing test rig as a research object,according to the load and rotating speed of test bearing,the gas-liquid two-phase flow in the simplified test bearing chamber mod-el of high-speed railway bearing test rig is numerically simulated by the VOF model and the RNG κ-εturbulence model.The influence of the bearing rotating speed and oil return hole diameter on chamber pressure of the test bearing is analyzed,and the distribution of pressure field and velocity field of the lubricating oil in gas-liquid two-phase flow in the bearing chamber are obtained .The results show that the bearing chamber pressure increases with the increase of rotating speed of test spindle of test rig.With the increase of the oil return hole diameter,bearing chamber pressure near the outlet is obviously lower than the chamber pressure of other parts.
出处
《轴承》
北大核心
2014年第5期33-36,共4页
Bearing
基金
国家"八六三"计划项目(2009AA044902)
关键词
滚动轴承
高铁轴承
试验台
气液两相流
腔压
rolling bearing
high-speed railway bearing
test rig
gas-liquid two-phase flow
chamber pressure
