期刊
TRIBOLOGY INTERNATIONAL
卷 67, 期 -, 页码 174-181出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2013.07.010
关键词
Dynamic roll gap; Multi-factor coupling; Vibration; Interface
资金
- National Natural Science Foundation of China [51175133]
In the present work, a multi-factor coupling dynamic model of a rolling mill system for a dynamic roll gap during an unsteady lubrication process was developed on the basis of the rolling theory, lubrication and the friction theory, and the mechanical vibration theory. The multi-factor coupling model of interfacial film binding was coupled with the rolling force model, dynamic roll gap interface friction model and work roll movement model. The corresponding distributions of friction and pressure at varying surface roughness and times were systematically analyzed during the unsteady mixed lubrication process. The effects of the main processing parameters on the critical speed and amplitude for self-excited vertical vibration were investigated. (C) 2013 Elsevier Ltd. All rights reserved.
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