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International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
Tel:
86-571-87041360,87239525
Fax:
86-571-87239571
Add:
No.9 Gaoguannong,Daxue Road,Hangzhou,China
P.C:
310009
E-mail:
meem_contribute@163.com
Abstract: Most researches on fretting wear mainly focus on the wear characteristics of specific materials, while the research on the distribution of stress field and its influencing factors in fretting contact state is less. However, the distribution of the stress field in the fretting contact area directly determines the wear behavior of the materials in the contact area. Aiming at the problem of the influence of key fretting parameters on the contact state during fretting wear, the contact state of fretting wear was studied. Firstly, the finite element model of cylinder-plane fretting contact was established using Abaqus software, and the selection of key fretting parameters was planned in groups, and the specific loading process was determined. Secondly, the accuracy of the finite element model was verified by the analytical method, and the contact state of the cylinder-plane fretting contact finite element model was simulated by finite element method. Finally, according to the simulation results, the effects of normal load, displacement amplitude and friction factor on the stress field distribution and contact state in the contact area were analyzed and discussed. The results show that the normal load mainly determines the contact width and the range of shear stress in the contact area, the friction factor mainly affects the boundary between partial slip regime (PSR) and gross slip regime (GSR) , and the displacement amplitude determines the contact state between the specimen and the fretting pad. Among the above factors, the displacement amplitude is the main influencing factor. Under the joint action of multiple variables, the fretting contact exhibits different tribological behaviors and thus affects the fretting wear mechanism.
Key words: fretting contact state; fretting wear; contact mechanics; finite element analysis model; stress field distribution; displacement amplitude
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