Multiple-Modal-Coupling Modeling and Stability Analysis of Cold Rolling Mill Vibration

Table 4

Influence of rolling lubricants on system stability.

Rolling specification: 2 0.5 (mm)
Rolling lubricants	⁢Emulsion concentration (%)		Rolling speed (m/min)	System stability
	Tank #3	Tank #5
N54	2.2	1.2	1200	Stable
	2.2	1.2	1250	Unstable
	1.5	0.6	1480	Stable
N428	2.2	1.2	988	Stable
	2.2	1.2	1000	Unstable
	1.6	0.7	1413	Stable