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This paper presents a novel method for detecting cracks in beams using instantaneous frequency and empirical mode decomposition, focusing on the dynamic behavior of a cantilever beam with a breathing crack under harmonic excitation. The study shows that the instantaneous frequency varies with crack depth, providing a polynomial relationship that can estimate crack size, while harmonic distortion also serves as an effective indicator for crack evaluation. The proposed time-frequency approach is deemed superi

Author

vahidaga

Language

EN