[PDF][PDF] Identification of a dynamical model of the latching mechanism of an aircraft hatch door using the numerical algorithms for subspace state-space system …

CM Pappalardo, A Lettieri, D Guida - IAENG International Journal of …, 2021 - iaeng.org
In this paper, the main objective is to underline the possibility of identifying simplified
mechanical models of complex mechanical systems through the numerical techniques of …

[HTML][HTML] Damping 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 …

A novel methodology for modal parameter identification of arch dam based on multi-level information fusion

G Wang, H Li, Z Fu, W Huang, B Liu, S Yao - Mechanical Systems and …, 2023 - Elsevier
Operational modal analysis plays an important role in the structural health monitoring and
safety diagnosis of arch dam. However, due to background noise, it is difficult to accurately …

A linear Bayesian filter for input and state estimation of structural systems

M Ebrahimzadeh Hassanabadi, Z Liu… - … ‐Aided Civil and …, 2023 - Wiley Online Library
This paper proposes a linear recursive Bayesian filter for minimum variance unbiased joint
input and state estimation of structural systems. Unlike the augmented Kalman filter (AKF) …

Uncertainty quantification of modal parameter estimates obtained from subspace identification: An experimental validation on a laboratory test of a large-scale wind …

S Greś, R Riva, CY Süleyman, P Andersen… - Engineering …, 2022 - Elsevier
The uncertainty afflicting modal parameter estimates stems from eg, the finite data length,
unknown, or partly measured inputs and the choice of the identification algorithm …

A modal‐based Kalman filtering framework for mode extraction and decomposition of damped structures

JS Hwang, DK Kwon, A Kareem - Computer‐Aided Civil and …, 2023 - Wiley Online Library
The mode shape is one of the important modal parameters that enables to visualize the
intrinsic behavior of a structure as well as the quantity of interest by extracting or separating …

[HTML][HTML] Instantaneous amplitude and phase signal modeling for harmonic removal in wind turbines

M Zivanovic, A Plaza, X Iriarte, A Carlosena - Mechanical Systems and …, 2023 - Elsevier
We present a novel approach to harmonic disturbance removal in single-channel wind
turbine acceleration data by means of time-variant signal modeling. Harmonics are …

Automated operational modal analysis for rotating machinery based on clustering techniques

NR Dreher, GC Storti, TH Machado - Sensors, 2023 - mdpi.com
Many parameters can be used to express a machine's condition and to track its evolution
through time, such as modal parameters extracted from vibration signals. Operational Modal …

[HTML][HTML] Low-rank approximation of Hankel matrices in denoising applications for statistical damage diagnosis of wind turbine blades

S Greś, KE Tatsis, V Dertimanis, E Chatzi - Mechanical Systems and Signal …, 2023 - Elsevier
Abstract Model order selection is a fundamental task in subspace identification for estimation
of modal parameters, uncertainty propagation and damage diagnosis. However, the true …

Operational modal analysis under harmonic excitation using Ramanujan subspace projection and stochastic subspace identification

M Xu, FTK Au, S Wang, H Tian - Journal of Sound and Vibration, 2023 - Elsevier
The presence of deterministic harmonic excitation, such as that induced by rotating
machinery, violates the classical operational modal analysis (OMA) assumption that the …