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Control of longitudinal tension in multi-span web transport systems during start up

Reid, Karl N.
Lin, Ku-Chin
Abstract
The control of longitudinal tension in a multi-span web transport system during start up is studied using first-principles modeling and digital simulation. Since start-up problems normally involve large variations of system roller velocities, nonlinear models (rather than linearized models) are used for the analysis.
Examples of systems using load cells and dancer subsystems for tension measurement are presented to demonstrate the effects on web tension of changes in the start-up conditions.
Date
1993-06