Abstract
In the field of aerospace, high-speed trains and automobile, etc, analysis of temperature filed and scuffing failure of tapered roller bearings are more important than ever, and the scuffing failure of elements of such rolling bearings under heavy load and high speed still cannot be effectively predicted yet. A simplified model of tapered roller bearings consisted of one inner raceway, one outer raceway and a tapered roller was established, in which the interaction of several heat sources is ignored. The contact mechanics model, temperature model and model of scuffing failure are synthesized, and the corresponding computer programs are developed to analyze the effects of bearings parameters, different material and operational conditions on thermal performance of bearings, and temperature distribution and the possibility of surface scuffing are obtained. The results show that load, speed, thermal conductivity and tapered roller materials influence temperature rise and scuffing failure of bearings. Ceramic material of tapered roller results in the decrease of scuffing possibility of bearings to a high extent than the conventional rolling bearing steel. Compared with bulk temperature, flash temperature on the surfaces of bearing elements has a little influence on maximum temperature rise of bearing elements. For the rolling bearings operated under high speed and heavy load, this paper proposes a method which can accurately calculate the possibility of scuffing failure of rolling bearings.
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Supported by the Natural Science Foundation of China (Grant No. 51375436), Natural Science Foundation of Zhejiang Province (Grant No. Z1100475) and Project of Engineering Research Center for Sliding Bearing of Zhejiang Province (Contract No. 2012E10028)
WANG Ailin, born in 1987, is an engineer, received her master degree on tribology from Zhejiang University, China, in 2013.
WANG Jiugen, born in 1963, is a professor at Zhejiang University, China. He received his PhD degree from Zhejiang University, China, in 1993. His research interests include tribology, bionic design and informatics of mechanical design.
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Wang, A., Wang, J. Temperature distribution and scuffing of tapered roller bearing. Chin. J. Mech. Eng. 27, 1272–1279 (2014). https://doi.org/10.3901/CJME.2014.0813.133
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DOI: https://doi.org/10.3901/CJME.2014.0813.133