Effects of surface roughness and lubrication on the early stages of fretting of mechanical lap joints

被引：31
|
作者：
Eriten, Melih [1 ]
Polycarpou, Andreas A. [1 ]
Bergman, Lawrence A. [2 ]
机构：
[1] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA
[2] Univ Illinois, Dept Aerosp Engn, Urbana, IL 61801 USA
来源：
WEAR | 2011年 / 271卷 / 11-12期
基金：
美国国家科学基金会;
关键词：
Fretting loops; Lap joints; Joint stiffness/damping; Surface roughness; TO-ALUMINUM JOINTS; STIFFNESS BEHAVIOR; CONTACT; WEAR; INTERFACE; FRICTION; FRACTURE;
D O I：
10.1016/j.wear.2011.06.011
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper examines the effects of surface roughness and lubrication on the early stages of fretting response of aluminum and steel lap joint samples. Qualitative and quantitative changes in fretting loops due to changes in loading; roughness characteristics, and contact conditions are analyzed. Roughness is found to influence friction force, tangential joint stiffness, partial slip displacements, and energy dissipation per fretting cycle. Moreover, despite growing weaker, the influence of roughness is shown to prevail under boundary or starved lubrication using a synthetic polyol ester lubricant. Furthermore, galling is shown to complicate the fretting response of the aluminum joints under heavy preloading conditions. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：2928 / 2939
页数：12
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