Method and device for monitoring the malfunction of APU turbine vane fracture and rotor shaft jam
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United States of America Patent
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Apr 25, 2017
Grant Date -
Mar 12, 2015
app pub date -
Jul 23, 2014
filing date -
Jul 24, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to a method and device for monitoring APU turbine vane fracture and rotor shaft jam. The method for monitoring APU turbine vane fracture and rotor shaft jam comprises: acquiring APU messages at multiple time points within a period; obtaining the operation parameters of the APU according to the APU messages, the operation parameters including at least the start time STA; calculating the average value AVG and the deviation index δ of the start time STA within the period; and determining the circumstance of the turbine vane fracture and rotation shaft jam of APU is in stable phase, decline phase or malfunction phase according to the deviation index δ.
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International Classification(s)
- G01M:TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR S....
- G05B:CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTION....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- B64F:GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS
- F02C:GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION....
- F01D:NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g....
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