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Numerical sensitivity analysis of a complex glass forming process by means of local perturbations

: Janya-anurak, Chettapong; Birkhofer, Hannes; Bernard, Thomas

Volltext urn:nbn:de:0011-n-1924685 (1.9 MByte PDF)
MD5 Fingerprint: 188964de82147e5ae3bb4671a38dab8c
Erstellt am: 17.1.2012

COMSOL Conference 2011. Multiphysics Modeling and Simulation. Proceedings. CD-ROM : Stuttgart, October 26-28, 2011
Stuttgart, 2011
ISBN: 978-0-9839688-0-1
6 S.
COMSOL Conference <2011, Stuttgart>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IOSB ()

Many industrial processes are characterized by a complex spatio-temporal and nonlinear dynamic behavior. Examples are rheological forming processes (e.g. glass, steel, plastic). For process optimization it is very important to know the impact of possible perturbations to the relevant process variables and the process “output” parameters (e.g. product properties). In this paper a glass forming process is investigated. We are concerned the effect of local perturbations to the global variable fields (e.g. temperature, velocity and geometric profile of the glass). The sensitivity of the process variables to the perturbations is calculated numerically. In detail perturbations of the oven temperature profile (stationary) and material inhomogeneities (time dependent) are investigated. The results of the sensitivity analysis are actually used for the development of optimal control strategies.