期刊
TRIBOLOGY INTERNATIONAL
卷 87, 期 -, 页码 11-22出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2015.02.011
关键词
Double-row tapered roller bearing; Thermal network method; Temperature; Power loss
资金
- National Key Basic Research Program of China (973) [2011CB706602]
- National Natural Science Foundation of China [51275045, 51405017]
- Program for New Century Excellent Talents in University
Based on generalized Ohm's law, the thermal network model (TNM) is developed for double-row tapered roller bearing lubricated with grease, which is commonly used in high-speed railway. The load distribution and kinematic parameters in bearing are obtained by developing a quasi-static model. The temperature of bearing at different speeds, filling grease ratios and roller large end radius are investigated. The results show that large rotating speed and filling grease ratio result in high temperature rise, especially at roller large end/flange contacts. Besides, an optimal roller large end radius is presented and its mechanism has been explored. (C) 2015 Elsevier Ltd. All rights reserved.
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