A review of operational modal analysis techniques for in-service modal identification

FB Zahid, ZC Ong, SY Khoo - Journal of the Brazilian Society of …, 2020 - Springer
Vibrations are the root cause of many mechanical and civil structure failures. Dynamic
characteristics of a structure must be extracted to better understand structural vibrational …

Health monitoring and safety evaluation of the offshore wind turbine structure: a review and discussion of future development

J Lian, O Cai, X Dong, Q Jiang, Y Zhao - Sustainability, 2019 - mdpi.com
With the depletion of fossil energy, offshore wind power has become an irreplaceable
energy source for most countries in the world. In recent years, offshore wind power …

Modal identification of output-only systems using frequency domaindecomposition

R Brincker, L Zhang, P Andersen - Smart materials and structures, 2001 - iopscience.iop.org
In this paper a new frequency domain technique is introduced for the modal identification of
output-only systems, ie in the case where the modal parameters must be estimated without …

Modal identification from ambient responses using frequency domain decomposition

R Brincker, L Zhang, P Andersen - … San Antonio, Texas, USA, February 7 …, 2000 - vbn.aau.dk
In this paper a new frequency domain technique is introduced for the modal identification
from ambient responses, ie. in the case where the modal parameters must be estimated …

Operational modal analysis in the presence of harmonic excitation

P Mohanty, DJ Rixen - Journal of sound and vibration, 2004 - Elsevier
Modal operational analysis methods are procedures to identify modal parameters of
structures from the response to unknown random excitations existing on buildings and in …

Automated frequency domain decomposition for operational modal analysis

R Brincker, P Andersen, NJ Jacobsen - Conference proceedings: IMAC …, 2007 - vbn.aau.dk
Abstract The Frequency Domain Decomposition (FDD) technique is known as one of the
most user friendly and powerful techniques for operational modal analysis of structures …

A method to distinguish harmonic frequencies and remove the harmonic effect in operational modal analysis of rotating structures

W Chen, M **, J Huang, Y Chen, H Song - Mechanical Systems and Signal …, 2021 - Elsevier
Operational modal analysis (OMA) is used to identify the modal parameters of a structure
under operational conditions, which reflects the real boundary conditions and state …

Modified ERA method for operational modal analysis in the presence of harmonic excitations

P Mohanty, DJ Rixen - Mechanical Systems and Signal Processing, 2006 - Elsevier
Operational modal analysis (OMA) is a procedure which allows to extract modal parameters
of structures from measured responses to unknown excitation arising in operation. It is …

Instantaneous modal identification under varying structural characteristics: A decentralized algorithm

S Quqa, L Landi, PP Diotallevi - Mechanical Systems and Signal …, 2020 - Elsevier
One of the latest trends in structural health monitoring involves the use of wireless
decentralized sensing systems, developed to reduce costs and speed up the whole …

[HTML][HTML] Dam** identification of offshore wind turbines using operational modal analysis: a review

AAW van Vondelen, ST Navalkar… - Wind Energy …, 2022 - wes.copernicus.org
To increase the contribution of offshore wind energy to the global energy mix in an
economically sustainable manner, it is required to reduce the costs associated with the …