Unsteady lubrication modeling of inlet zone in metal rolling processes

来源期刊：中国有色金属学报(英文版)2002年第1期

论文作者：毛明智 谭建平

文章页码：57 - 61

Key words：metal rolling;unsteady state lubrication;inlet film thickness

Abstract: An unsteady lubrication model of inlet zone in metal rolling was established. The simulation computations show that for the variation amplitude of the inlet film thickness, the variation of the inlet angle contributes the largest, the surface mean speed contributes the second and the back tension stress the least. The higher the input frequency is, the smaller the amplitude output of the inlet film thickness will be. For a sinusoidal input, the inlet film thickness varies periodically but is not a sine wave because the system is not linear.