The rotor dynamics of reeling machinery

Wide-faced rotors for high-speed reeling operations such as those employed in paper manufacture, printing, coating and laminating are considered, and the torsional behaviour of these units is investigated. Modelling, simulati on and analysis techniques are involved enabling the prediction of the tors ional vibrational signature of high-speed assemblies under acceleration and braking conditions. The results outlined show that simulated response char acteristics can be easily obtained, and the effect of varying the rotor geo metry can be routinely accommodated. The transient conditions presented for a reeling machine are commented upon with particular reference to the angu lar velocity and shear stress variation following torque changes. The effec t on volume production is discussed. (C) 1999 Elsevier Science Inc. All rig hts reserved.