摘要
目的研究具有仿生硅藻结构的复合型织构对滑动轴承润滑性能的影响。方法采用流固耦合的方法,对具有复合型织构的单元模型进行研究,依照硅藻的多孔结构,设计出矩形-半球型、矩形-椭球型、圆柱-半球型及圆柱-椭球型等4种类型的织构,建立这几种复合型织构的单个单元模型。在不同面积率和织构深度条件下,分析不同织构类型对滑动表面摩擦润滑性能的影响。结果在考虑摩擦性能与承载力的条件下,矩形-半球型和矩形-椭球型织构的最佳面积率为25%,最佳深度分别为0.9 mm和1.1 mm;圆柱-半球型和圆柱-椭球型织构的最佳面积率分别为35%和25%,最佳织构深度分别为1.1 mm和0.9 mm。在不同织构深度条件下,随着复合织构面积率的变化,圆柱-半球型的承载力和摩擦学性能最好,圆柱-椭球型次之,而矩形半球型和矩形-椭球型复合织构的承载力和摩擦学性能的变化几乎相同。结论复合型织构的最佳面积率和最佳深度与织构形状有关,在相同面积率和深度的条件下,最佳的复合型织构形状为圆柱-半球型织构。
In order to study the effect of compound texture with bionic diatom structure on lubrication performance of sliding bearing.In this paper,the fluid-structure coupling method was used to study the cell models with compound textures.According to the porous structure of diatom,four types of textures were designed,which were rectangular-spherical rectangular-ellipsoid,cylindrical-spherical and cylindrical-ellipsoid respectively.The single cell models of these compound textures were established.The influences of the different texture types of sliding surfaces on the friction and lubrication properties of the sliding surfaces were analyzed under the conditions of different area ratio and texture depth.The results show that under the condition of considering the friction performance and bearing capacity,the optimal area ratio of the rectangular-spherical texture and the rectangle-ellipsoid texture are 25%and the optimal depth of the rectangular-spherical texture and the rectangle-ellipsoid texture are 0.9 mm and 1.1 mm respectively.The optimal area ratio of the cylindricalspherical texture and the cylindrical-ellipsoid texture are 35%and 25%,respectively,the optimal depth of the cylindricalspherical texture and the cylindrical-ellipsoid texture are 1.1 mm and 0.9 mm,respectively.In the condition of different texture depth,with the change of area ratio of the compound texture,the cylindrical-spherical compound texture has the best bearing capacity and tribological properties,the cylindrical-ellipsoid compound texture is the next,while the rectangular-spherical and rectangular-ellipsoid compound texture have almost the same changes in bearing capacity and tribological properties.The optimal area rate and depth of the compound texture are related to the texture shape.Under the same area rate and depth condition,the optimal compound texture shape is cylindrical-spherical texture.
作者
胡宇
王优强
菅光霄
左名玉
房玉鑫
莫君
HU Yu;WANG You-qiang;JIAN Guang-xiao;ZUO Ming-yu;FANG Yu-xin;MO Jun(School of Mechanical and Automotive Engineering,Qingdao University of Technology,Qingdao 266520,China;Key Lab of Industrial Fluid Energy Conservation and Pollution Control,Ministry of Education,Qingdao 266520,China)
出处
《表面技术》
EI
CAS
CSCD
北大核心
2022年第1期43-51,共9页
Surface Technology
基金
国家自然科学基金(51575289)
山东省重点研发计划项目(2019GHY112068)
山东省自然科学基金(ZR2019PEE028)。
关键词
复合织构
流体动压润滑
流固耦合
CFD数值模拟
有限元分析
compound texture
hydrodynamic lubrication
fluid-solid interaction
CFD numerical simulation
finite element analysis
作者简介
胡宇(1997-),女,硕士研究生,主要研究方向为轴承的弹流润滑;通讯作者:王优强(1970-),男,博士,教授,主要研究方向为轴承的弹流润滑。
