Разработка адаптивного фильтра низкочастотных колебаний в канале измерения частоты вращения силовой турбины газотурбинного двигателя

Abstract

In the article proposes an algorithm of adaptive filtering of the input signal for power turbine speed of the low-frequency oscillations coming from the helicopter rotor system. Filtering is performed by an adaptive notch-filter. The filter reduces the gain at a given oscillation frequency, without changing it for other frequencies, and adaptation algorithm automatically adjusts notch-filter settings for filtering a specific oscillation frequency.