基于润滑体胞结构及胞核组分的润滑剂析出特性研究  

Study on the Precipitation Ability of Lubricant Based on Its Cellular Structure and Constituents

作　　者：卢平[1] 刘佐民[1] 

机构地区：[1]武汉理工大学摩擦学研究所,湖北武汉430070

出　　处：《润滑与密封》2010年第5期37-41,109,共6页Lubrication Engineering

基　　金：国家自然科学基金项目(50775168)

摘　　要：以汗腺式体胞结构为对象,建立胞体微孔结构模型,提出利用胞核最大变形量来衡量其润滑析出能力,并通过有限元分析探讨胞核孔隙率、工作温度以及胞核组分对胞核润滑析出特性的影响。结果表明,胞核最大变形量与胞核孔隙率、工作温度呈线性关系,与胞核组分无对应关系,如胞核组分中Pb含量增加时,润滑析出量增加,但当胞核组分中Cu含量增加时,润滑析出量反而减少。A model of porous cellular structure was developed based on the sweat-gland material with micro-pores,the maximum displacement of the cellular nucleus was employed to evaluate the precipitation ability of solid lubricant.Finite element analysis of the model was carried out to investigate the effect of temperature,porosity and constituents’ratio of cellular nucleus on the precipitation ability respectively.Results show that the maximum displacement of the cellular nucleus has a linear relationship with the nucleus porosity and temperature,but no such relationship with ratio of its constituents,further research shows it will increase with the increase of the mass ratio of Pb,however decrease with Cu.

关 键 词：高温发汗自润滑 润滑控制 有限元 胞体材料 

分 类 号：TB33[一般工业技术—材料科学与工程]