Experimental continuation in nonlinear dynamics: recent advances and future challenges
Abstract
Experimental continuation encompasses a set of methods that combine control and continuation to obtain the full bifurcation diagram of a nonlinear system experimentally, including responses that would be unstable in the system without feedback control. Such control-based methods thus allow the experimenter to directly and exhaustively explore the dynamics of the system without the need for a good mathematical model. The objective of this paper is twofold, namely (i) to review and present the state-of-the-art methods in a unified manner and (ii) to introduce a novel experimental derivative-free arclength continuation procedure, termed arclength control-based continuation. These methods are also demonstrated and compared on an electronic Duffing oscillator and a clamped thin plate featuring geometrical nonlinearity. Finally, the current state of the art is reflected upon, and the challenges lying ahead for this growing field are discussed.
Cite
@article{arxiv.2408.00138,
title = {Experimental continuation in nonlinear dynamics: recent advances and future challenges},
author = {Ghislain Raze and Gaëtan Abeloos and Gaëtan Kerschen},
journal= {arXiv preprint arXiv:2408.00138},
year = {2025}
}