多圆弧与三角形复合织构表面的动压润滑性能  

Hydrodynamic lubrication performance on multi-textured surface structured by multi-arcs and triangle textures

作　　者：阮鸿雁[1] 吕建军[1] 司辉[1] 刘会霞[1] 王霄[1] 

机构地区：[1]江苏大学机械工程学院,江苏镇江212013

出　　处：《江苏大学学报（自然科学版）》2010年第3期254-258,共5页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(50475122)

摘　　要：合理的表面织构能有效地改善摩擦副的动压润滑性能.建立了由多圆弧及三角形复合构成的织构表面的几何模型及流体力学控制方程;应用基于N-S方程的CFD软件FLUENT,对该复合织构表面的动压润滑性能进行数值分析.结果表明,复合织构表面的压力分布更加合理,举升力明显大于两种单一织构表面产生的举升力之和,即复合织构表面动压润滑效果更好.Appropriate surface texture can improve hydrodynamic lubrication performance for kinematic pairs.A geometrical model of multi-textured surface constructed by multi-arcs and triangles is established while a hydrodynamics control equation is preserved.Using CFD software FLUENT,the hydrodynamic lubrication performance of multi-textured surface is computed.It shows that the multi-textured surface performs better compared with the independent-textured surface.The former gives a more appropriate pressure distribution and thus produces a higher thrust force.

关 键 词：复合表面织构 CFD 动压润滑 

分 类 号：TH117[机械工程—机械设计及理论]