557 RWTH Publication No: 811903        2021       
TITLE Feedback control for random, linear hyperbolic balance laws
AUTHORS Stephan Gerster, Markus Bambach, Michael Herty, Muhammad Imran
ABSTRACT We design the controls of physical systems that are faced by uncertainties. The system dynamics are described by random hyperbolic balance laws. The control aims to steer the system to a desired state under uncertainties. We propose a control based on Lyapunov stability analysis of a suitable series expansion of the random dynamics. The control damps the impact of uncertainties exponentially fast in time. The presented approach can be applied to a large class of physical systems and random perturbations, as e.g. Gaussian processes. We illustrate the control effect on a stochastic viscoplastic material model.
KEYWORDS Systems of hyperbolic balance laws, feedback stabilization, Lyapunov function, stochastic Galerkin, viscoplastic deformations
DOI 10.1615/Int.J.UncertaintyQuantification.2021037183
PUBLICATION International Journal for Uncertainty Quantification, Volume 12, Issue 2, 2022, pp. 81-104