Open AccessVertical Vibration Model for Unsteady Lubrication in Rolls-Strip Interface of Cold Rolling Mills
Author(s) -
Xu Yang,
Qing Li,
Chaonan Tong,
Qi-han Liu
Publication year - 2012
Publication title -
advances in mechanical engineering/advances in mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.318
H-Index - 40
eISSN - 1687-8140
pISSN - 1687-8132
DOI - 10.1155/2012/734510
Subject(s) - lubrication , vibration , displacement (psychology) , stress (linguistics) , rolling mill , engineering , structural engineering , mechanics , rolling resistance , mechanical engineering , acoustics , physics , psychology , linguistics , philosophy , psychotherapist
According to the vertical vibration phenomena existing in cold rolling mills, the unsteady lubrication mechanism in roll gap and its influence to rolling stability was chosen as the case for analysis. On the basis of rolling theory, lubrication and friction theory, and mechanic vibration theory, the vertical vibration model for unsteady lubrication in rolls-strip interface was presented. The Geometry model of roll gap, the unsteady lubrication model of roller-strip working interface, the distribution model of normal rolling stress and friction stress, and the rolling vertical structure model were taken into account. Based on the rolling equipment and process parameters of aluminium mill, the rolling force curve and dynamic response of working roll displacement variation was simulated on Matlab/Simulink platform. A comparison with actual production data shows the validity of this vibration model