Damage assessment in composite plates using fractional wavelet transform of modal shapes with optimized selection of spatial wavelets

Katunin, Andrzej; Przystałka, P.

doi:10.1016/j.engappai.2014.01.003

Cited by 42 publications

(27 citation statements)

References 29 publications

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“…In order to avoid the necessity of selection of the wavelet parameters, the hybrid algorithms with optimization of these parameters have been developed. These algorithms were applied both for 1D [63] and for 2D [54] SDI problems and allow for selection of optimal parameters for the applied wavelet. The multiobjective optimization function in these algorithms covered maximization of wavelet coefficients in damage location with simultaneous minimization of noise out of a damaged region.…”

Section: Selection Of Wavelet Transform and Waveletsmentioning

confidence: 99%

“…The damage identification studies performed on these plates using various approaches were described in [44,54,63].…”

Section: Description Of Sdi Benchmarkmentioning

confidence: 99%

“…The first studies were performed on numerical modal shapes of cantilever composite beams [52] and obtained results revealed a significant improvement with respect to previously applied algorithms. Further, the algorithm was extended for 2D SDI problems based on the transform developed by Chaudhury and Unser [53] and applied for identification of various types of damage in composite structures [54,55]. Finally, the modification of mentioned algorithm for an improvement of resolution of resulting sets of coefficients, and thus accuracy of damage localization, was proposed [56].…”

Section: Introductionmentioning

confidence: 99%

“…The SDI algorithm is based on FrDWT with optimization of wavelets parameters, namely, the fractional order and a shift parameter, which allows for selection of a wavelet, which gives the best parameters for damage identification procedure. Further, this approach was extended to 2D SDI problems [54], where the common optimal parameters of applied wavelet were determined for a set of considered problems. In this case, surface damage in clamped laminated composite plates with various sizes and orientations was under investigation.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Nondestructive Damage Assessment of Composite Structures Based on Wavelet Analysis of Modal Curvatures: State-of-the-Art Review and Description of Wavelet-Based Damage Assessment Benchmark

Katunin

2015

Shock and Vibration

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The application of composite structures as elements of machines and vehicles working under various operational conditions causes degradation and occurrence of damage. Considering that composites are often used for responsible elements, for example, parts of aircrafts and other vehicles, it is extremely important to maintain them properly and detect, localize, and identify the damage occurring during their operation in possible early stage of its development. From a great variety of nondestructive testing methods developed to date, the vibration-based methods seem to be ones of the least expensive and simultaneously effective with appropriate processing of measurement data. Over the last decades a great popularity of vibration-based structural testing has been gained by wavelet analysis due to its high sensitivity to a damage. This paper presents an overview of results of numerous researchers working in the area of vibration-based damage assessment supported by the wavelet analysis and the detailed description of the Wavelet-based Structural Damage Assessment (WavStructDamAs) Benchmark, which summarizes the author’s 5-year research in this area. The benchmark covers example problems of damage identification in various composite structures with various damage types using numerous wavelet transforms and supporting tools. The benchmark is openly available and allows performing the analysis on the example problems as well as on its own problems using available analysis tools.

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Section: Selection Of Wavelet Transform and Waveletsmentioning

confidence: 99%

“…The damage identification studies performed on these plates using various approaches were described in [44,54,63].…”

Section: Description Of Sdi Benchmarkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nondestructive Damage Assessment of Composite Structures Based on Wavelet Analysis of Modal Curvatures: State-of-the-Art Review and Description of Wavelet-Based Damage Assessment Benchmark

Katunin

2015

Shock and Vibration

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“…This allows for faster, more accurate, and comprehensive data analysis. Signal processing methods include nowadays wavelet transform [23][24][25][26], fractal analysis [27], genetic algorithms [28,29], and neural networks [30,31].…”

Section: Introductionmentioning

confidence: 99%

Detection of Delamination in Laminate Wind Turbine Blades Using One‐Dimensional Wavelet Analysis of Modal Responses

Doliński

Krawczuk

Żak

2018

Shock and Vibration

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This paper demonstrates the effectiveness of a nondestructive diagnostic technique used to determine the location and size of delamination in laminated coatings of wind turbine blades. This is realized based on results of numerical and experimental investigations obtained by the use of the finite element method (FEM) and laser scanning vibrometry (LSV). The proposed method is based on the one-dimensional continuous wavelet transform of vibration parameters of a wind turbine blade. The investigations were conducted for a 1 : 10 scaled-down blade of a 36 m rotor wind turbine. Glass fibres and epoxy resin were used as laminate components. For numerical studies, a simple delamination model was proposed. The results obtained by the authors were used to determine the optimal set of parameters of the continuous wavelet transform. The application of high-quality LSV for experimental measurements allowed determining the optimal conditions of measuring procedures. At the same time the capabilities and limitations, resulting from the nature of the measurement method, were identified. In order to maximize the effectiveness of the detection method, preliminary signal processing was performed. Beside base wavelets also different waveform families were tested. The results obtained by the authors showed that it is possible to identify and localize even relatively small damage.

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Localization of Impact Damage in Thin-Walled Composite Structure Using Variance-Based Continuous Wavelet Transform

Janeliukštis

Ručevskis

Sumbatyan

et al. 2017

Non-Destructive Testing and Repair of Pipelines

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Damage assessment in composite plates using fractional wavelet transform of modal shapes with optimized selection of spatial wavelets

Cited by 42 publications

References 29 publications

Nondestructive Damage Assessment of Composite Structures Based on Wavelet Analysis of Modal Curvatures: State-of-the-Art Review and Description of Wavelet-Based Damage Assessment Benchmark

Nondestructive Damage Assessment of Composite Structures Based on Wavelet Analysis of Modal Curvatures: State-of-the-Art Review and Description of Wavelet-Based Damage Assessment Benchmark

Detection of Delamination in Laminate Wind Turbine Blades Using One‐Dimensional Wavelet Analysis of Modal Responses

Localization of Impact Damage in Thin-Walled Composite Structure Using Variance-Based Continuous Wavelet Transform

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