Identification of nonlinear frequency response curves under shaker-structure interaction through force-controller-free phase-locked loop testing

Gabos, Zoltan; Raze, Ghislain; Kerschen, Gaëtan; Dombovari, Zoltan

doi:10.1007/s11071-025-12126-8

Article (Scientific journals)

Identification of nonlinear frequency response curves under shaker-structure interaction through force-controller-free phase-locked loop testing

Gabos, Zoltan; Raze, Ghislain; Kerschen, Gaëtan et al.

2026 • In Nonlinear Dynamics, 114 (4)

Peer reviewed

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https://hdl.handle.net/2268/341910

DOI
10.1007/s11071-025-12126-8

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Keywords :

Nonlinear vibration; System identification; Signal processing; Coupled dynamics; Phase-locked loop testing

Abstract :

[en] This paper presents an integrated approach for extracting nonlinear frequency response (NLFR) curves in systems affected by shaker-structure interaction. The approach leverages three distinct phase-locked loop (PLL) testing methods, each tailored for different levels of coupling effects. By resectioning the response surfaces obtained from the proposed PLL-based tests, the need for force controllers is eliminated. The technique is validated through numerical and experimental studies. Experiments conducted on nonlinear beam and plate structures illustrate the effectiveness of the proposed technique, even in the presence of coupled modes.

Disciplines :

Aerospace & aeronautics engineering
Mechanical engineering

Author, co-author :

Gabos, Zoltan; BUTE - Budapest University of Technology and Economics > Department of Applied Mechanics

Raze, Ghislain ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux

Kerschen, Gaëtan ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux

Dombovari, Zoltan; BUTE - Budapest University of Technology and Economics > Department of Applied Mechanics

Language :

English

Title :

Identification of nonlinear frequency response curves under shaker-structure interaction through force-controller-free phase-locked loop testing

Publication date :

February 2026

Journal title :

Nonlinear Dynamics

ISSN :

0924-090X

eISSN :

1573-269X

Publisher :

Springer Science and Business Media LLC

Volume :

114

Issue :

Peer reviewed :

Peer reviewed

Additional URL :

https://link.springer.com/content/pdf/10.1007/s11071-025-12126-8.pdf

Funders :

BUTE - Budapest University of Technology and Economics
F.R.S.-FNRS - Fund for Scientific Research

Available on ORBi :

since 25 February 2026

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