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- W4283211090 abstract "AbstractThe guided wave (GW) based structural health monitoring method has been a promising method because this method can cover a wide monitoring range and it is sensitive to small damage. However, online damage quantification is difficult as damage initiation and growth are affected by various uncertainties. In addition, various time-varying conditions introduce uncertainty effects on GW features, resulting in a decrease in the accuracy of damage quantification. Therefore, a multi-source feature fusion Gaussian mixture model (MSFF-GMM) is proposed to improve the accuracy of damage quantification. Firstly, MSFF-GMM is constructed by fusing the feature information from multiple channels and multiple specimens under time-varying conditions. Then, the migration index calculated by Kullback-Leibler divergence is used to measure the difference between the GMMs constructed at different damage degrees. Finally, the proposed method is validated for online damage quantification on the typical aircraft lug structure under time-varying dynamic load conditions.KeywordsStructural health monitoringGuided waveGaussian mixture modelTime-varying conditionsDamage quantification" @default.
- W4283211090 created "2022-06-22" @default.
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- W4283211090 date "2022-06-22" @default.
- W4283211090 modified "2023-09-29" @default.
- W4283211090 title "Guided Wave-Gaussian Mixture Model for Damage Quantification Under Uncertainty" @default.
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- W4283211090 doi "https://doi.org/10.1007/978-3-031-07322-9_12" @default.
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