Condition monitoring of aircraft units

Improving the quality and reliability of aviation equipment is impossible without correct information on its technical condition at all stages of life cycle: in developing in design office, at the manufacturing stage and in operation. Information on present, past and future technical condition of a product is obtained by the methods of technical diagnosis, genesis and prediction.

The quality of these methods is characterized by P_D probability of acquisition of correct information on the product condition at a time. Vibration monitoring of condition integrates these methods into a single continuous process by the elimination of passing through the time intervals with unobserved changes of the condition.

Reliability of the results of monitoring (P_M) is determined not only by the reliability of vibration analysis (P_D), but also by the frequency of vibration control (T_K) that should be considerably smaller than duration of malfunction development (T_N) because it determines the probability of detection (P_T) of a critical malfunction.

Kostyukov V.N. Condition monitoring of aircraft units // Collection of reports of scientific and technical conference "Sensors and detectors for aviation equipment "DDAT-2003". - Penza, 2003. - p. 87-95

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