Introduction of a non constant viscosity on an extrusion process: improvements

Valérie dos Santos Martins (1)

1 LAGEP - Laboratoire d'automatique et de génie des procédés

The aim of this paper is to improve previous works about an extrusion process which is expressed by two systems of conservation laws (with source terms) coupled by a moving interface whose relation is derived from the conservation of momentum. Previous articles have shown the well-posedness and the stability of the linearized system and performed a PI control of the system via an Internal Model Boundary Control structure; for which the parameters have been tuned using the perturbation theory of C\₀-semigroup. Those works have been done with simplifying hypothesis like constant viscosity and melt density. Here, the same reasoning is done, taken this time a viscosity and a melt density as functions of the temperature. Some simulations are done with a constant melt density and a viscosity function of the temperature.

Mots clés: ACTI

Domaines: Automatique / Robotique; Génie des procédés

Valérie dos Santos Martins. Introduction of a non constant viscosity on an extrusion process: improvements. CPDE 2013, IFAC Workshop on Control of Systems Modeled by Partial Differential Equations, 2013, Institut Henri Poincaré, Paris, Unknown Region. 6 p. ⟨hal-01900930⟩