Problem: The accuracy and stability of a new model of precision process instruments was affected by installation variability and in-service changes in ambient conditions.
Problem: Unexplained tension variations in the steel sheet as it is coiled on its exit from a cold rolling mill were causing quality problems known as tension digs and sticker breaks. Furthermore, the related motion of the tension reel assembly was leading to failures in its support structure.
Problem: Rolling mill chatter, a form of self excited vibration, is a chronic problem in steel and aluminum mills which limits production, reduces product quality and increases maintenance cost.
Problem: Analyze vibration performance of a complex prototype structure using sub-system models provided by multiple contractors.
Barring [PDF] Problem: Self-excited vibration and related regenerative wear in paper machine calender stacks reduce paper quality and increase maintenance costs.