Vibration-based damage imaging via high-speed cameras with 3D digital image correlation using wavelet transform

Wang, Shaohan; Fong, Rey-Yie; Fang, Yuan

doi:10.1117/12.2585246

Cited by 7 publications

(2 citation statements)

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“…Due to the low frequency detection usually adopted in traditional VBMs, it is quite difficult for small defects to be detected and for the damage to be accurately located without complex signal analysis and processing. Therefore, many high-frequency VBMs have been proposed [10][11][12][13][14][15][16] , including the local defect resonance method [11][12][13] and the local wavenumber estimation method [14][15][16] . These high-frequency VBMs have the advantages of high resolution and sensitivity to small damage as demonstrated in experiments.…”

Section: Introductionmentioning

confidence: 99%

Damage Identification Based on the Nodal Line Active Modulation Method

Feng

Yan

et al. 2023

Preprint

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A novel vibration-based method (VBM) for damage identification named nodal line active modulation (NLAM) is proposed in this study. Unlike traditional VBMs, NLAM can identify damage by taking advantage of the nodal line effect, which is observed when the defect is located on the nodal lines. In these cases, the dynamic responses of the structure remain nearly unchanged. Through numerical studies, we have elaborated on the theory in detail and painted a clearer picture of the steps in the NLAM process through a cleft detection in an aluminum plate. In experimental research, piezoelectric transducers work as both actuators and sensors for intact and damaged carbon fiber reinforced plastic laminates, while a scanning laser Doppler vibrometer measures the full-field response for the intact structure only. The added mass damage is visualized from the highlighted nodal lines of the modulated operational deflection shapes. The present investigation provides a new idea for VBM damage detection, which should provide practical applications for structural health monitoring.

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Section: Introductionmentioning

confidence: 99%

Damage Identification Based on the Nodal Line Active Modulation Method

Feng

Yan

et al. 2023

Preprint

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“…Data clustering is considered as the main method for dividing a huge amount of data into groups for more precise analysis. Cluster analysis is the grouping or clustering of data according to the inherent similarities and characteristics between the data [2][3][4]. The clustering result may show the target ship's trajectories and traffic volume distribution [5,6].…”

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confidence: 99%

A novel high-dimensional trajectories construction network based on multi-clustering algorithm

Ren

Han

Wang

et al. 2022

J Wireless Com Network

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A multiple clustering algorithm based on high-dimensional automatic identification system (AIS) data is proposed to extract the important waypoints in the ship’s navigation trajectory based on selected AIS attribute features and construct a route network using the waypoints. The algorithm improves the accuracy of route network planning by using the latitude and longitude of the historical voyage trajectory and the heading to the ground. Unlike the navigation clustering method that only uses ship latitude and longitude coordinates, the algorithm first calculates the major waypoints using Clustering in QUEst (CLIQUE) and Balance Iterative Reducing and Clustering Using Hierarchies (BIRCH) algorithms, and then builds the route network using network construction. Under the common PC specification (i5 processor), this algorithm forms 440 major waypoints from 220,133 AIS data and constructs a route network with directional features in 5 min, which is faster in computing speed and more suitable for complex ship trajectory differentiation and can extend the application boundary of ship route planning.

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Damage Identification Based on the Nodal Line Active Modulation Method

Feng

Yan

et al. 2023

J Nondestruct Eval

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Vibration-based damage imaging via high-speed cameras with 3D digital image correlation using wavelet transform

Cited by 7 publications

References 0 publications

Damage Identification Based on the Nodal Line Active Modulation Method

Damage Identification Based on the Nodal Line Active Modulation Method

A novel high-dimensional trajectories construction network based on multi-clustering algorithm

Damage Identification Based on the Nodal Line Active Modulation Method

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