Starter control valve failure prediction machine to predict and trend starter control valve failures in gas turbine engines using a starter control valve health prognostic, program product and related methods
First Claim
1. A computer implemented method to predict starter control valve failures in gas turbine engines using a starter control valve health prognostic comprising the steps of:
- receiving historic gas turbine engine startup data for a plurality of gas turbine engine startups of one or more historic gas turbine engines of a certain gas turbine engine model, the historic gas turbine engine startup data including an indication that at least one of the plurality of gas turbine engine startups failed due to a starter control valve failure;
determining, in a first computer process by a computer, a starter control valve pre-failure signature for the one or more historic gas turbine engines responsive to the historic gas turbine engine startup data;
extracting, in a second computer process by the computer, one or more health index features from the starter control valve pre-failure signature of the one or more historic gas turbine engines;
constructing, in a third computer process by the computer, a starter control valve health prognostic for the certain gas turbine engine model responsive to the one or more health index features extracted from the starter control valve pre-failure signature of the one or more historic gas turbine engines;
receiving operational gas turbine engine startup data for at least one gas turbine engine startup of one or more operational gas turbine engines of the certain gas turbine engine model;
extracting, in a fourth computer process by the computer, one or more health index features from the operational gas turbine engine startup data for each of the at least one gas turbine engine startups;
calculating, in a fifth computer process by the computer, a starter control valve health index for each of the at least one gas turbine engine startups responsive to the one or more health index features extracted from the operational gas turbine engine startup data to thereby define one or more health indices;
comparing, in a sixth computer process by the computer, each of the one or more health indices calculated by the fifth computer process to the starter control valve health prognostic for the certain gas turbine engine model; and
determining in a seventh computer process by the computer, responsive to the step of comparing, a potential predictive starter control valve failure point, the potential predictive starter control valve failure point being located where one of the one or more health indices correlates to the starter control valve health prognostic for the certain gas turbine engine model.
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Accused Products
Abstract
Starter control valve failure prediction machines, systems, program products, and computer implemented methods to predict and trend starter control valve failures in gas turbine engines using a starter control valve health prognostic and to make predictions of starter control valve failures, are provided. A computer implemented method according to an embodiment of the present invention can include the steps of generating a continuous starter control valve deterioration trend function responsive to a plurality of health indices derived from gas turbine engine startup data downloaded from gas turbine engine sensors for a plurality of startups and analyzing the continuous starter control valve deterioration trend function to identify potential starter control valve failure points where the points on the starter control valve deterioration trend function correlate to a starter control valve health prognostic responsive to historic gas turbine engine startup data downloaded from gas turbine engine sensors.
29 Citations
20 Claims
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1. A computer implemented method to predict starter control valve failures in gas turbine engines using a starter control valve health prognostic comprising the steps of:
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receiving historic gas turbine engine startup data for a plurality of gas turbine engine startups of one or more historic gas turbine engines of a certain gas turbine engine model, the historic gas turbine engine startup data including an indication that at least one of the plurality of gas turbine engine startups failed due to a starter control valve failure; determining, in a first computer process by a computer, a starter control valve pre-failure signature for the one or more historic gas turbine engines responsive to the historic gas turbine engine startup data; extracting, in a second computer process by the computer, one or more health index features from the starter control valve pre-failure signature of the one or more historic gas turbine engines; constructing, in a third computer process by the computer, a starter control valve health prognostic for the certain gas turbine engine model responsive to the one or more health index features extracted from the starter control valve pre-failure signature of the one or more historic gas turbine engines; receiving operational gas turbine engine startup data for at least one gas turbine engine startup of one or more operational gas turbine engines of the certain gas turbine engine model; extracting, in a fourth computer process by the computer, one or more health index features from the operational gas turbine engine startup data for each of the at least one gas turbine engine startups; calculating, in a fifth computer process by the computer, a starter control valve health index for each of the at least one gas turbine engine startups responsive to the one or more health index features extracted from the operational gas turbine engine startup data to thereby define one or more health indices; comparing, in a sixth computer process by the computer, each of the one or more health indices calculated by the fifth computer process to the starter control valve health prognostic for the certain gas turbine engine model; and determining in a seventh computer process by the computer, responsive to the step of comparing, a potential predictive starter control valve failure point, the potential predictive starter control valve failure point being located where one of the one or more health indices correlates to the starter control valve health prognostic for the certain gas turbine engine model. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A starter control valve failure prediction machine to predict and trend starter control valve failures in gas turbine engines using a starter control valve health prognostic, the failure prediction machine comprising:
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a first computer readable storage medium storing historic gas turbine engine startup data for a plurality of gas turbine engine startups of one or more historic gas turbine engines of a certain gas turbine engine model, the historic gas turbine engine startup data including an indication that at least one of the plurality of gas turbine engine startups failed due to a starter control valve failure; a second computer readable storage medium storing operational gas turbine engine startup data for at least one gas turbine engine startup of one or more operational gas turbine engines of the certain gas turbine engine model; a computer adapted to be in communication with the first computer readable storage medium and the second computer readable storage medium and having a processor, a memory, and a computer readable program product stored in the memory of the computer, the computer readable program product including; a starter control valve pre-failure signature determiner configured to determine at least one starter control valve pre-failure signature for the one or more historic gas turbine engines responsive to the historic gas turbine engine startup data received from the first computer readable storage medium, a health prognostic constructor configured to construct a starter control valve health prognostic for the certain gas turbine engine model responsive to one or more health index features extracted from the at least one starter control valve pre-failure signature of the one or more historic gas turbine engines, a health index determiner configured to determine a starter control valve health index for each of the at least one gas turbine engine startups of the one or more operational gas turbine engines responsive to one or more health index features extracted from the operational gas turbine engine startup data received from the second computer readable storage medium to thereby define one or more health indices, and a signature comparator configured to compare each of the one or more health indices with the starter control valve health prognostic for the certain gas turbine engine model to thereby identify a potential predictive starter control valve failure point, the potential predictive starter control valve failure point being located where one of the one or more health indices correlates to the starter control valve health prognostic for the certain gas turbine engine model. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer readable program product stored in a tangible computer medium and including instructions that when executed by a computer cause the computer to perform the operations of:
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determining a starter control valve pre-failure signature for one or more gas turbine engines of a certain gas turbine engine model responsive to historic gas turbine engine startup data received for a plurality of gas turbine engine startups of one or more gas turbine engines of the certain gas turbine engine model, the historic gas turbine engine startup data including an indication that at least one of the plurality of gas turbine engine startups failed due to a starter control valve failure; constructing a starter control valve health prognostic for the certain gas turbine engine model responsive to one or more health index features extracted from the starter control valve pre-failure signature of the one or more gas turbine engines; calculating a starter control valve health index for each of a plurality of operational gas turbine engine startups of a plurality of gas turbine engines operationally mounted on a vehicle and of the certain gas turbine engine model responsive to health index features extracted from operational gas turbine engine startup data to thereby define one or more health indices; comparing each of the one or more health indices to the starter control valve health prognostic for the certain gas turbine engine model; determining, responsive to the step of comparing, a potential predictive starter control valve failure point, the potential predictive starter control valve failure point being located where one of the one or more health indices correlates to the starter control valve health prognostic for the certain gas turbine engine model; and identifying the gas turbine engine of the vehicle associated with the potential predictive starter control valve failure point. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification