Numerical Approximations for the Null Controllers of Structurally Damped Plate Dynamics

Numerical Approximations for the Null Controllers of Structurally Damped Plate Dynamics

Year:    2023

Author:    Pelin G. Geredeli, Carson Givens, Ahmed Zytoon

International Journal of Numerical Analysis and Modeling, Vol. 20 (2023), Iss. 3 : pp. 329–352

Abstract

In this paper, we consider a structurally damped elastic equation under hinged boundary conditions. Fully-discrete numerical approximation schemes are generated for the null controllability of these parabolic-like PDEs. We mainly use finite element method (FEM) and finite difference method (FDM) approximations to show that the null controllers being approximated via FEM and FDM exhibit exactly the same asymptotics of the associated minimal energy function. For this, we appeal to the theory originally given by R. Triggiani [20] for construction of null controllers of ODE systems. These null controllers are also amenable to our numerical implementation in which we discuss the aspects of FEM and FDM numerical approximations and compare both methodologies. We justify our theoretical results with the numerical experiments given for both approximation schemes.

code-IJNAM-2023-03-02(Null-control).zip

You do not have full access to this article.

Already a Subscriber? Sign in as an individual or via your institution

Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/ijnam2023-1013

International Journal of Numerical Analysis and Modeling, Vol. 20 (2023), Iss. 3 : pp. 329–352

Published online:    2023-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    24

Keywords:    Null control finite element method finite difference method.

Author Details

Pelin G. Geredeli

Carson Givens

Ahmed Zytoon