Effect of Manufacturing Errors on Performance of Gas Lubricated Journal Bearing
Effect of Manufacturing Errors on Performance of Gas Lubricated Journal Bearing
复制标题
DOI：
--
复制
发表时间：
1994
影响因子：
--
通讯作者：
Nuaa Nanjing
中科院分区：
文献类型：
--
作者：
Nuaa Nanjing
如何在不降低轴承性能的前提下降低加工成本，是每个轴承设计者共同面临的问题。本文分析了制造误差对气体润滑滑动轴承性能的影响。介绍了轴承座精加工中常用的加工工艺的经济精度。然后对影响加工精度的因素进行了讨论。采用有限元法分析了主要加工误差圆误差和圆柱误差对轴承性能的影响。给出了考虑圆柱误差和圆误差的误差分布公式。结果表明，加工误差对轴承性能的影响与误差类型和参数有关，可接受的圆、圆柱加工误差应控制在平均膜厚的20% ~ 30%范围内。
It is a common problem for every bearing designer to reduce the machining cost without lowering the bearing performance. In this paper,the effects of manufacturing errors on the performance of gas lubricated journal bearings are analysed.The economic accuracy of machining process,which is usually used for bearing housing finish machining,is presented. After that the factors which effect the machining accuracy are discussed.The effects of main machining errors,round error and cylindrical error,on bearing performance are analysed by finite element method. An error distribution formula is presented,in which both round and cylindrical errors are considered. It was shown that the effects of machining errors on bearing performance are related to the error type and parameters,and the acceptable round and cylindrical machining errors should be controlled in the range of 20%30% of the average film thickness.