Identification and control of crystallization dynamics during sheet polymer extrusion

Author

Batur, Celal ; Thananchai, Leephakpreeda

Author_Institution

Dept. of Mech. Eng., Akron Univ., OH, USA

Volume

1

fYear

1997

fDate

4-6 Jun 1997

Firstpage

612

Abstract

Crystallinity control for polymer sheet extrusion processes is considered. An analytical model for the crystallinity dynamics is derived. This development is based on the continuity, momentum, energy and crystallinity equations. It is shown that the crystallinity dynamics can be linearized around a normal operating point. Based on the linearized model, the crystallinity dynamics are identified and a pole placement control law is derived and simulated in order to control the crystallinity around the operating point

Keywords

crystallisation; dynamics; extrusion; identification; partial differential equations; plastics industry; pole assignment; polymers; process control; crystallinity control; crystallization dynamics; linearized model; partial differential equation; plastics industry; pole placement; process control; process dynamics; sheet polymer extrusion; Boundary conditions; Boundary value problems; Cooling; Crystal microstructure; Crystallization; Equations; Polymers; State feedback; Steady-state; Thermal stresses;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1997. Proceedings of the 1997

Conference_Location

Albuquerque, NM

ISSN

0743-1619

Print_ISBN

0-7803-3832-4

Type

conf

DOI

10.1109/ACC.1997.611872

Filename

611872