Fault Feature Extraction Method of Rolling Bearing Based on IAFD and TKEO
Kai Guo,
Jun Ma,
Xin Xiong
et al.
Abstract:The study of bearing fault feature extraction using adaptive Fourier decomposition (AFD) holds significant practical importance. However, AFD is constrained by its reliance on prior knowledge for determining decomposition levels, which can result in either underdecomposition or overdecomposition based on a single indicator. Consequently, an improved adaptive Fourier decomposition (IAFD) is proposed. First, a combined weight index called SP is constructed, and the whale optimization algorithm is employed to opt… Show more
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