NONLINEAR VIBRATIONS AND BACKLASHES DIAGNOSTICS
IN THE ROLLING MILLS DRIVE TRAINS
The angular and radial backlashes due to intensive wear are the most distinctive feature of the cold and hot rolling mills drive trains. It causes nonlinear torsional vibration and significant torque amplification. It leads to equipment failures but in their turn could be used for wear diagnostics in the range of natural frequencies of the drive trains during the transient processes. The static load and dynamic response interrelation, non isochronisms and other nonlinear system features are used for wear diagnostics under the non stationary loads and speeds.