Application of virtual monitoring of loads
AssigneeSikorsky Aircraft Corporation
InventorsRaymond Joseph Beale, Mark W. Davis
Life of this patent
Estimating the term…
Abstract
A system and method for an application of a virtual load monitoring of an aircraft to determine a component retirement time for at least one component of the aircraft is provided. The system and method includes estimating component loads from aircraft state parameters; calculating load statistics from the component loads; calculating a reliability factor; generating a component design load spectrum by applying the reliability factor to the load statistics; and calculating the component retirement time for the at least one component of the aircraft by utilizing the component design load spectrum.
Claims14
A method for an application of a virtual load monitoring of an aircraft to determine a component retirement time for at least one component of the aircraft, comprising:
- estimating component loads from aircraft state parameters by statistically analyzing the component loads for a plurality of serial numbers for the at least one component;
- calculating load statistics from the component loads;
- calculating a reliability factor based on the component loads for each serial number of the plurality of serial numbers;
- generating a component design load spectrum by:
- calculating a component load spectrum for each serial number of the plurality of serial numbers,
- augmenting the load statistics to back fill for corrupt or missing data and,
- applying the reliability factor to the augmented load statistics to identify a desired reliability,
- the component design load spectrum being based on the component load spectrum for each serial number and the desired reliability;
- calculating the component retirement time for the at least one component of the aircraft by utilizing the component design load spectrum by calculating accumulated fatigue damage for each serial number of the plurality of serial numbers and calculating a retirement time and remaining useful life for each serial number of the plurality of serial numbers;
- and
- retiring the component at the calculated component retirement time.
A system for an application of a virtual load monitoring of an aircraft to determine a component retirement time for at least one component of the aircraft, the system comprising:
- a processor, the processor configured to perform operations comprising:
- estimating component loads from aircraft state parameters by statistically analyzing the component loads for a plurality of serial numbers for the at least one component;
- calculating load statistics from the component loads;
- calculating a reliability factor based on the component loads for each serial number of the plurality of serial numbers;
- generating a component design load spectrum by:
- calculating a component load spectrum for each serial number of the plurality of serial numbers,
- augmenting the load statistics to back fill for corrupt or missing data and,
- applying the reliability factor to the augmented load statistics to identify a desired reliability,
- the component design load spectrum being based on the component load spectrum for each serial number, the desired reliability;
- calculating the component retirement time for the at least one component of the aircraft by utilizing the component design load spectrum by calculating accumulated fatigue damage for each serial number of the plurality of serial numbers and calculating a retirement time and remaining useful life for each serial number of the plurality of serial numbers;
- and
- retiring the component at the calculated component retirement time.
Dependencies are inferred from the claim text.