Abstract
The thermal-mechanical character, which is difficult to ensure because of the lack of a corresponding theory and tool, has a significant effect on the dynamics of bearings. It even leads to a sudden failure of bearings in a working situation. In this research, a thermal deformation model was established, based on the analysis of temperature effect on the basic size of angular contact ball bearing. And the transmission from rolling size to bearing axial stiffness was explicit. On the basis of the variation of Hertz contact stiffness and the change of initial contact angle of angular contact ball bearing caused by temperature rise, a “Thermo- mechanical” model of bearing was proposed. According to this model, using the corresponding calculation procedure programmed by MATLAB, the effect of bearing temperature on the axial stiffness has been studied. And the correctness of this model was verified with experiments. Some design suggestions have been made for the decision of bearing preload: to prevent the bearing failure caused by overheating.
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Wei Bian received the B.S. in Mechanical engineering from Nanjing University of Science and Technology in 2013. He is currently a Ph.D student at Nanjing University of Science and Technology, People’s Republic of China. He conducts research in the areas of structural dynamics, numerical simulation and precision predicting of feeding system.
Zhenhua Wang received the B.S. in Materials Processing Technology from NanChang HangKong University in 2001, the M.S. from GuangXi University in 2006, and the Ph.D. from Nangjing University of Science and Technology in 2010, respectively. He is currently an assistant Professor at the School of Mechanical Engineering at the Nangjing University of Science and Technology, China. His current research is focused on the advanced machining processes and machine tools.
Juntang Yuan is a doctoral tutor of Nanjing University of Science and Technology, China. He is the director of the 8th China Metal Cutting Tool Engineering Association, and a member of Non-Traditional Machining Institution of the Chinese Mechanical Engineering Society, and the secretary of the party committee in School of Mechanical Engineering of Nanjing University of Science and Technology, China.
Weiwei Xu received the B.S. in Mechanical engineering from Nanjing University of Science and Technology in 2014. He is currently aq graduate student at Nanjing University of Science and Technology. He is researching in double drive linear feeding system based on rolling slide composite guide in heavy machine tool.
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Bian, W., Wang, Z., Yuan, J. et al. Thermo-mechanical analysis of angular contact ball bearing. J Mech Sci Technol 30, 297–306 (2016). https://doi.org/10.1007/s12206-015-1233-4
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DOI: https://doi.org/10.1007/s12206-015-1233-4