Fault signal noise reduction reconstruction feature identification method for high-speed wire rod mill

摘要: The embodiment of the invention discloses a fault signal noise reduction reconstruction feature identification method for high-speed wire rod mill. comprises following steps: subjecting an acquired vibration matrix to singular value decomposition generate corresponding vector; constructing difference spectrum according vector and determining effective order spectrum; performing fast Fourier transform (FFT) on within range order; searching, in FFT result sequence, amplitudes having power frequency its multiplication characteristic obtain value; reconstructing time-domain by using excluding signal. mill can improve signal-to-noise ratio realize accurate failure diagnosis