Multivariable Dimension-reduction and Synergic Control Strategy for Cross-directional Basis Weight of Papermaking Process

Shan, Wenjuan; Tang, Wei

doi:10.7584/jktappi.2019.04.51.2.76

Cited by 3 publications

(1 citation statement)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The tracking of streamlines through the process-often referred to as the "lane identification" problem-is critical to gauge control. Although errors in mapping can be significant in paper making, 6 the shrinkage of paper is two to three orders of magnitude smaller than the stretching of film. TD stretch ratios vary from product to product.…”

Section: Process Description and Kinematicsmentioning

confidence: 99%

Process model structures for transverse direction gauge control of tentered polymeric film

Lightfoot¹

2023

AIChE Journal

View full text Add to dashboard Cite

One of the most successful applications of multiple input multiple output control is the control of thickness in sheet forming processes including paper making and plastic film casting. While there are many similarities between film manufacture and other sheet forming processes, the physics differs from process to process. The choice of both process model and optimal control algorithm must reflect these differences. Here we consider how the basic physics of film manufacture a reflected in two classes of process models: phenomenological (interaction) models used in conventional gauge control algorithms and mechanistic models based on engineering science. Mechanistic models are more mathematically robust than purely statistical phenomenological models for some aspects of gauge control and may prove advantageous for other sheet forming applications.

show abstract

Section: Process Description and Kinematicsmentioning

confidence: 99%