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Modelling of Tandem Rolling Mills Including Tensional Stress Propagation

This paper presents an analytical model for dynamic simulation of the tandem mills. The model is a comprehensive one which includes the consideration of elasticity and damping effect at the rolls, plastic deformation at the bite region, stress propagation tensional waves among stands, external scroll force at the back-up rolls and torsional vibration of the work roll. Simulation results show that chatter and other dynamic phenomena can successfully be predicted. It is believed that this model will be useful in the design and control of tandem mills.