The Design of Extrusion Screws: An Optimization Approach
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A. Gaspar-Cunha
Abstract
The design of a screw for plasticating polymer extrusion based on scientific principles is still a challenging task, which has received surprisingly little attention in the literature. In the present work the design of a screw is considered as an optimization problem. The corresponding design methodology is discussed. Two alternative approaches are considered. In the first case, the aim is to maximize the value of an objective function that describes quantitatively the process performance in terms of pre-selected important process criteria. A multiobjective optimization scheme resorting to the use of optimal or non-dominated Pareto frontiers is also implemented, where the set of feasible individual solutions in terms of the various criteria is correlated, thus evidencing the compromise between them. The relevance of the solutions and the sensitivity of the method to changes in the criteria considered are demonstrated with a case study.
© 2001, Carl Hanser Verlag, Munich
Articles in the same Issue
- Editorial
- Tenth of a Series: Pioneer of The Polymer Thermoset Industry – Leo-Hendrik Baekeiand
- Screw Extrusion
- Effects of Process Conditions on the Dissolution of Carbon Dioxide in PS in Foaming Extruders
- The Design of Extrusion Screws: An Optimization Approach
- Generalized Flow of Ellis Fluid in the Screw Channel
- Generalized Flow of Ellis Fluid in the Screw Channel
- Experimental Study of Melting in an Intermeshing Counter-Rotating Twin Screw Extruder
- Reactive Extrusion
- A Dynamic Model for Multiple Steady States in Reactive Extrusion
- Fiber and Film
- PA612 Double Bubble Tubular Film Process – Processability and Structure Development
- Injection Molding
- Injection Molding Technology for High Speed Optical Disk
- Three-dimensional Filling and Post-filling Simulation of Polymer Injection Molding
- Cold Rolling
- Microstructure and Prediction of Stress-strain Behaviour of Cold-rolled PP Sheets
Articles in the same Issue
- Editorial
- Tenth of a Series: Pioneer of The Polymer Thermoset Industry – Leo-Hendrik Baekeiand
- Screw Extrusion
- Effects of Process Conditions on the Dissolution of Carbon Dioxide in PS in Foaming Extruders
- The Design of Extrusion Screws: An Optimization Approach
- Generalized Flow of Ellis Fluid in the Screw Channel
- Generalized Flow of Ellis Fluid in the Screw Channel
- Experimental Study of Melting in an Intermeshing Counter-Rotating Twin Screw Extruder
- Reactive Extrusion
- A Dynamic Model for Multiple Steady States in Reactive Extrusion
- Fiber and Film
- PA612 Double Bubble Tubular Film Process – Processability and Structure Development
- Injection Molding
- Injection Molding Technology for High Speed Optical Disk
- Three-dimensional Filling and Post-filling Simulation of Polymer Injection Molding
- Cold Rolling
- Microstructure and Prediction of Stress-strain Behaviour of Cold-rolled PP Sheets
