2022
DOI: 10.1016/j.compstruct.2022.115243
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Damage detection of composite laminate structures using VMD of FRF contaminated by high percentage of noise

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Cited by 20 publications
(7 citation statements)
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“…It can be observed that with the presence of damage, FRF illustrates clear downward trend and slight shifting in the harmonics of the fundamental frequency, especially in the higher mode orders. However, FRF has some limitation due to noise effects 29 and change in environment, that is, temperature and global structural 38 . Thus, more data is required from multiple input measurements to ensure repeatable results with a good coherence.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…It can be observed that with the presence of damage, FRF illustrates clear downward trend and slight shifting in the harmonics of the fundamental frequency, especially in the higher mode orders. However, FRF has some limitation due to noise effects 29 and change in environment, that is, temperature and global structural 38 . Thus, more data is required from multiple input measurements to ensure repeatable results with a good coherence.…”
Section: Methodsmentioning
confidence: 99%
“…28 In order to accurately analyze multiple damage positions in steel panels, this study proposed an output-only, baseline-free damage localization technique that combined the FRF curvature approach with the cepstrum methodology 28 and variational mode decomposition. 29 The FRF signal can be generated as a result of original input excitation, which might be used for the suggested methods for damage detection in a laminated composite plate. Despite modifications in the type of excitation, boundary condition, damage position, and damage intensity, the approach requires advance algorithms and complex computational scheme to be successful in identifying damages in laminated composite plates.…”
Section: Introductionmentioning
confidence: 99%
“…By reducing the modulus of elasticity, local damage was simulated. A noise reduction method was proposed in [ 74 ], using a variational mode decomposition (VMD) algorithm to reduce white noise interference. In [ 75 ], response changes were analyzed using an empirical mode decomposition (EMD) algorithm of the condensed frequency response function (CFRF) contaminated by a high percentage of noise.…”
Section: Structural Health Monitoringmentioning
confidence: 99%
“…• Support vector machine (SVM): SVM is an algorithm for analyzing data relations. The technique is beneficial for pattern recognition and can be used for regression analysis [242][243][244] [53,263].…”
Section: Data Analysis For Eoc Compensationmentioning
confidence: 99%
“…An SHM system comprises various components, including networks, data transmission systems, data acquisition and processing units, damage identification algorithms, and decision-making procedures [47][48][49]. Depending on the application, various SHM methods have been developed and investigated [42,[50][51][52][53][54].…”
Section: Introductionmentioning
confidence: 99%