Influence of surface topography on friction characteristics

被引：57
|
作者：
Nyman, Par
Maki, Rikard [1 ]
Olsson, Richard
Ganemi, Bager
机构：
[1] Lulea Univ Technol, Div Machine Elements, SE-97187 Lulea, Sweden
[2] Haldex Tract Syst AB, SE-26124 Landskrona, Sweden
[3] Statoil Lubricants R&D, SE-14922 Nynashamn, Sweden
来源：
WEAR | 2006年 / 261卷 / 01期
关键词：
wear; topography; wet clutch; stick-slip; sintered friction materials;
D O I：
10.1016/j.wear.2005.09.020
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In heavily loaded wet clutches, such as in limited slip differentials, sintered friction materials are sometimes used due to their resilience at high loads and high temperatures as well as their competitive cost in comparison to alternative friction materials. During the lifetime of the clutch, changes in the friction materials' topography occur. These changes will influence the friction characteristics of the clutch, and therefore affect the anti-shudder performance of the transmission system. This paper investigates the influence of, and classifies, changes in the topography of the sintered friction material. The topography is measured by utilizing vertical scanning interferometry. Different parameters are investigated in order to find relevant parameters correlating to the wear of the material. Results show that changes in the topography of the friction material do indeed influence the friction characteristics of the clutch and that it is possible to calculate relevant topography parameters that describe the amount of wear the material has been subjected to. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：46 / 52
页数：7
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