Operational modal analysis and wavelet transformation for damage identification in wind turbine blades

MD Ulriksen, D Tcherniak… - Structural Health …, 2016 - journals.sagepub.com
This study demonstrates an application of a previously proposed modal and wavelet
analysis-based damage identification method to a wind turbine blade. A trailing edge …

Simplified complex-valued modal model for operating wind turbines through aerodynamic decoupling and multi-blade coordinate transformation

C Chen, P Duffour, P Fromme, X Shen, X Hua… - Journal of Sound and …, 2023 - Elsevier
An efficient modelling methodology for steady-state operating wind turbines is proposed,
combining aerodynamic decoupling, multi-blade coordinate transformation, and modal …

Rapid seismic analysis methodology for in-service wind turbine towers

K Dai, Y Huang, C Gong, Z Huang, X Ren - Earthquake Engineering and …, 2015 - Springer
The wind energy industry has been growing rapidly during the past decades. Along with this
growth, engineering problems have gradually emerged in the wind power industry, including …

Rotor anisotropy as a blade damage indicator for wind turbine structural health monitoring systems

D Tcherniak - Mechanical Systems and Signal Processing, 2016 - Elsevier
Structural damage of a rotor blade causes structural anisotropy of the rotor. In rotor dynamic,
the anisotropy affects the symmetry of the rotor mode shapes, and the latter can be utilized to …

Precision blade deflection measurement system using wireless inertial sensor nodes

E Grundkötter, J Melbert - Wind Energy, 2022 - Wiley Online Library
Structural health monitoring on wind turbine blades is a great enhancement for operational
safety and failure avoidance. Blade deflection is a key parameter, which is a function of …

Linear time invariant approximation for subspace identification of linear periodic systems applied to wind turbines

A Cadoret, E Denimal, JM Leroy, JL Pfister, L Mevel - IFAC-PapersOnLine, 2022 - Elsevier
In this paper, subspace identification for wind turbines and more generally rotating periodic
systems are investigated. Previous works have stressed the difficulty of modeling such …

Linear time periodic system approximation based on Floquet and Fourier transformations for operational modal analysis and damage detection of wind turbine

A Cadoret, ED Goy, JM Leroy, JL Pfister… - Mechanical Systems and …, 2024 - Elsevier
Abstract Operational Modal Analysis (OMA) identifies modal properties of mechanical
structures from vibration data collected from a few sensors under operation conditions …

In-situ damage localization for a wind turbine blade through outlier analysis of stochastic dynamic damage location vector-induced stress resultants

MD Ulriksen, D Tcherniak, LM Hansen… - Structural Health …, 2017 - journals.sagepub.com
Today, structural integrity inspections of wind turbine blades are typically carried out by the
use of rope or platform access. Since these inspection approaches are both tedious and …

[PDF][PDF] Damage sensing in blades

B Hernandez Crespo - MARE-WINT: New Materials and Reliability …, 2016 - library.oapen.org
This chapter is divided into three parts; the problem, possible solutions and the chosen
option to address the problem, which is my PhD topic within the project MAREWINT. So …

Comparative study of OMA applied to experimental and simulated data from an operating Vestas V27 wind turbine

OR Requeson, D Tcherniak, GC Larsen - 6th International Operational …, 2015 - orbit.dtu.dk
Today, design of wind turbines is extensively done by the implementation of numerical
models. These models simulate the dynamic behaviour of full-scale wind turbines which …