Open AccessStudy on fatigue life model of “goose-neck” type slip ring
Author(s) -
Ming Liu,
Meng Liu,
Lizhong Zhang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/692/3/032090
Subject(s) - slip (aerodynamics) , slip ring , ring (chemistry) , conductor , materials science , structural engineering , mechanics , geometry , composite material , physics , engineering , brush , chemistry , mathematics , organic chemistry , thermodynamics
In view of the problem that it is difficult to predict the fatigue life of the “goose-neck” type slip ring, through the analysis of the working principle and the movement force of the slip ring, it is found that the main failure mode of the slip ring is the FPC conductor layer fracture, the failure position is at the junction of the FPC (inner ring) and the FPC (goose-neck). The fatigue life prediction model of slip ring is established by energy method, the analysis of the model shows that the fatigue life of slip ring decreases with the increase of the rotation angle of the inner ring, the radius ratio of the slip ring inner ring to the slip ring outer ring and the thickness of FPC conductor layer.