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Finite element simulation and experiments on a new induction heating bearing replacer

Li Guofa, Ren Xiaoli*, Wang Longshan and Zhang Donglin
The Journal of Mechanical Science and Technology, vol. 25, no. 8, pp.1987-1993, 2011

Abstract : A new shaft-bearing replacer used for bearing inner race based on the induction-heating technique by finite element method (FEM) was designed in this paper. The regularities of the distribution of the electromagnetic and thermal-structural coupled field in the replacer, temperature changes with time course, and expansion size in shaft and the bearing inner ring were simulated during the course of induction heating. The FEM simulation results not only proved the existence of the eddy skin effect, but also achieved the design parameters of the replacer. Experiments verified that the replacer can realize a fast disassembling of the bearing inner race, which assembled on an axle with interference fits.

Keyword : Induction heating; Shaft-bearing replacer; Bearing inner race; Skin effect; Finite element method (FEM)

 
 
 
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