Propeller health monitoring
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United States of America Patent
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Dec 8, 2020
Grant Date -
Mar 22, 2018
app pub date -
Sep 8, 2017
filing date -
Sep 16, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for monitoring the health of propellers in an aircraft is provided. The method includes receiving pressure waves generated by at least one rotating propeller and analysing data corresponding to the received pressure waves to detect tonal noise which is within a selected frequency range. If tonal noise at harmonics of the propeller rotational frequency within the selected frequency range is detected within the selected frequency range, it is established that the health of at least one propeller may be impaired and an alert is created for inspection and maintenance to take place.
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International Classification(s)
- G01H:MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC....
- G07C:TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDIC....
- G01M:TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR S....
- B64F:GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS
- B64D:EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SU....
- B64C:AEROPLANES; HELICOPTERS
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