Abstract
Abstract
To eliminate the spectral ambiguity generated by FFT analysis method, the computational order tracking (COT) method is adopted to process the unsteady vibrating signals acquired from the rotating machinery. In this paper, the Lagrange 7-point interpolation algorithm is proposed to calculate the speed profile, the subsection interpolation method is developed based on the given angular acceleration threshold to obtain resampling time, and the sliding low-pass filtering interpolation method is adopted for angular resampling. According to these algorithms, the order analysis system is developed based on LabVIEW, and it is verified by the tests of simulation signals.
Subject
General Physics and Astronomy
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