Arıcan, Ahmet ÇağrıÇopur, Engin HasanInalhan, GokhanSalamci, Metin Uymaz2023-10-272023-10-272023-10-19Arican AC, Copur EH, Inalhan G & Salamci MU (2023) An extension algorithm of regional eigenvalue assignment controller design for nonlinear systems, Aerospace, Volume 10, Issue 10, October 2023, Article Number 8932226-4310https://doi.org/10.3390/aerospace10100893https://dspace.lib.cranfield.ac.uk/handle/1826/20464This paper provides a new method to nonlinear control theory, which is developed from the eigenvalue assignment method. The main purpose of this method is to locate the pointwise eigenvalues of the linear-like structure built by freezing the nonlinear systems at a given time instant in a desired disk region. Since the control requirements for the transient response characteristics are the major constraints on the selection of the disk centre and radius, two different update algorithms are also developed to reshape the disk region by changing the disk centre and radius at each time step. The effectiveness of the proposed methods is tested in both simulations and experiments. A validated three-DOF laboratory helicopter is used for experiments.enAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/regional eigenvalue assignmentrobust controlnonlinear systemstransient responsestability marginreal-time control3-DOF helicopterArticle