Transactions of Nanjing University of Aeronautics & Astronautics
Filtering Method of Aero-engine Load Spectrum Based on Rain Flow Counting
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Abstract:
A filtering method of aero-engine load spectrum based on the rain flow counting is proposed in this paper. Firstly， the original load spectrum is counted through the rain flow method to get the peak and valley values. Then， some data points in the original load spectrum are added between the peak and valley values. Finally， the filtering spectrum is obtained. The proposed method can reflect the path information of the original load spectrum. In addition， it can also eliminate the noise in the signal and improve the efficiency of signal processing， which is of practical significance for the research of aero-engine.
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Clc Number:
V231.91
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