加工误差对气体静压径向轴承的影响  

Tolerance effect on performance of externally pressurized air journal bearings

作　　者：边新孝[1] 李谋渭[1] 李威[1] 

机构地区：[1]北京科技大学机械工程学院,北京100083

出　　处：《北京科技大学学报》2005年第3期331-333,共3页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(No.50375018)

摘　　要：建立了一种考虑影响气膜厚度误差、圆度和圆柱度误差的气膜厚度分布综合表达式,考虑加工误差对气体静压径向轴承的影响,进行了气体润滑有限元分析.分析表明:圆度和圆柱度误差对轴承的承载能力影响不大:气膜厚度误差为平均气膜厚度的5%时,承载能力变化约为10%.The paper proposed a gas film thickness distribution formula involved gas film thickness error, round and cylindrical errors. The effect of tolerance on the performance of an externally pressurized air journal bearing was studied by the finite element method. It is shown that round and cylindrical errors have less effect on the load-carrying capacity of the bearing, and an average film thickness error of 5% may result in a load-carrying change of 10%.

关 键 词：气体静压径向轴承 非对称 有限元 

分 类 号：TH133.3[机械工程—机械制造及自动化]