Analysis reveals critical safety monitoring for low-pressure alarms in wing anti-icing systems, guiding effective design.
The low-pressure alarm for aircraft wing anti-icing systems serves as a critical safety monitoring measure. Improper design of low-pressure alarm thresholds may lead to Level I safety incidents, such as unannounced failures of wing anti-icing systems, which could not only disrupt crew operations but also potentially trigger aviation accidents in severe cases. This study constructs a performance analysis model for typical civil aircraft wing anti-icing systems using AMESim. It conducts multi-parameter impact analysis on system low-pressure alarm thresholds and derives a calculation equation incorporating equipment FMEA (Failure Mode and Effects Analysis) data and system performance requirements. The equation has been validated through flight tests on civil aircraft wing anti-icing systems, confirming its rationality in low-pressure alarm threshold calculation. This approach provides guidance for the forward design and verification of low-pressure alarm thresholds in other civil aircraft wing hot-air anti-icing systems.
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Zhang et al. (2025) studied this question.
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