Title :
Lyapunov based draw resonance controller for polymer sheet extrusion
Author :
Nizami, J. ; Batur, C.
Author_Institution :
Dept. of Mech. Eng., Akron Univ., OH, USA
Abstract :
The draw resonance instabilities limit the production speeds of sheet extrusion processes. We propose a nonlinear controller that eliminates the instability at high draw ratios. The controller is derived using the nonlinear process model and Lyapunov based design methodology
Keywords :
Lyapunov methods; control system synthesis; extrusion; nonlinear control systems; plastics industry; polymer films; process control; resonance; Lyapunov based control design; Lyapunov based draw resonance controller; draw resonance instabilities; nonlinear controller; polymer sheet extrusion; Design methodology; Ear; Fluctuations; Geometry; Polymers; Production; Resonance; Spinning; Transfer functions; Viscosity;
Conference_Titel :
American Control Conference, 1998. Proceedings of the 1998
Conference_Location :
Philadelphia, PA
Print_ISBN :
0-7803-4530-4
DOI :
10.1109/ACC.1998.688395
