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- W4303926778 abstract "In order to investigate the feasibility of acoustic emission phenomenon aroused by electromagnetic excitation in metal specimens, electromagnetic acoustic emission model based on COMSOL software was established. On this basis, electromagnetic acoustic emission experiments were carried out and real signals with a lot of noise were obtained. To remove the noise of the electromagnetic acoustic emission signal, wavelet packet transform and complete ensemble empirical mode decomposition with adaptive noise(CEEMDAN) was introduced. Firstly, the noise signal of low-frequency was removed by the wavelet packet transform, and the retained node signal was reconstructed. Then the reconstructed signal was resolved by CEEMDAN, and the effective component signal was obtained by the variance contribution rate. Finally, to obtain denoised electromagnetic acoustic emission signal, the effective component signal was reconstructed. The result of simulation and experiment shows that the electromagnetic acoustic emission signal could be effectively obtained by loading electromagnetic excitation, which has greater practical value in engineering applications." @default.
- W4303926778 created "2022-10-09" @default.
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- W4303926778 date "2022-10-09" @default.
- W4303926778 modified "2023-09-29" @default.
- W4303926778 title "Research on finite element analysis and signal denoising based on electromagnetic acoustic emission" @default.
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- W4303926778 doi "https://doi.org/10.1117/12.2643467" @default.
- W4303926778 hasPublicationYear "2022" @default.
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