Numerical Sensitivity Analysis of a Complex Glass Forming Process by Means of Local Perturbations

C. Janya-Anurak, T. Bernard, and H. Birkenhofer
Fraunhofer Institute of Optronics
System Technologies and Image Exploitation IOSB
Karlsruhe, Germany
Publié en 2011

Over the last few years, Finite Element Models have become increasingly important as tool for the design of process control strategies or process optimization. Some processes possess complex spatio-temporal coupled and nonlinear dynamic. For process optimization it is very important to know the impact of parameters and state variables to the relevant process “output” parameters.

In the glass forming process which considered in our study, we concern the effect of local perturbations (e.g. material inhomogenities) to the global variable fields such as temperature or velocity. The relation between the small perturbations (e.g. viscosity variations) and process variables (e.g. geometry of the produced glass tube) will be estimated from the numerical simulated data.