径向动压轴承阶梯油腔结构参数优化设计

The Optimization of Construction Parameters of Stepped Journal Bearings in Hydrodynamic Lubrication

本文介绍运用液膜润滑有限元法与复合形优化法相结合的程序,对四种不同油腔结构的部分瓦径向动压轴承进行优化计算,得到最大承载能力或最小摩擦系数为目标的最优油腔参数,同时计算得到四个单台油腔的径向轴承以刚度最大为目标的最优油腔参数。程序中初步解决了不用拟合法进行动压轴承优化设计中所存在的巨大计算量这一主要问题。

Applying a computer Program with the method used in the finite element method for liquid film lubrication and the complex method optimization, this paper ontlines an optimization of four partial journal bearings with differently constructed oil chambers on purpose to find out the maximum loading capacity and the minimum frictional coefficient.The best oil chamber parameters of a four single-stepped full bearing of maximum rigidity have also been found.It is evident that in a hydrodynamic bearing optimization if the fitting method will not be used, a marked quantity of calculation shall undoubtedly be necessary. Now within this program some effective maens can give this problem a preliminary solution.