Method for improving severity estimates
First Claim
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1. A method for performing a work operation with a machine based on a composite work cycle damage rate estimate, the method comprising:
- constructing, by one or more processors of a computer system, a damage rate basis matrix, wherein;
each row of the damage rate basis matrix corresponds to a location on a machine; and
each column of the damage rate basis matrix corresponds to a test event in a composite work cycle;
performing, by the one or more processors of the computer system, a D-optimal row selection calculation on the damage rate basis matrix to maximize a determinant of the damage rate basis matrix;
assigning the work cycle damage rate estimate to an operation of the machine;
selecting, based on the D-optimal row selection calculation, a finite number of strain measurement device locations on the machine;
placing, on the machine, a strain measurement device at each of the selected strain measurement device locations;
calculating, by the one or more processors of the computer system, a vector of coefficients that, when multiplied by the damage rate basis matrix, results in the extracted target percentile damage rates for each of the one or more strain measurement devices;
verifying, based on a calculated vector of coefficients, weightings assigned to operations of the machine;
transferring, via the one or more processors, the composite work cycle damage rate estimate assigned to an operation of the machine, to one or more on-board modules of the machine; and
performing the operation with the machine, using the one or more on-board modules, based on the composite work cycle damage rate estimate.
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Abstract
A method for providing improved composite work cycle damage estimates includes constructing a damage rate basis matrix, performing a D-optimal row selection calculation on the damage rate basis matrix, selecting, based on the D-optimal row selection calculation, a finite number of strain measurement device locations on the machine, extracting a target percentile damage rate for each of the one or more strain measurement devices, and using the extracted damage rates to solve for the unknown coefficients and verify the weightings assigned to the machine operations.
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Citations
20 Claims
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1. A method for performing a work operation with a machine based on a composite work cycle damage rate estimate, the method comprising:
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constructing, by one or more processors of a computer system, a damage rate basis matrix, wherein; each row of the damage rate basis matrix corresponds to a location on a machine; and each column of the damage rate basis matrix corresponds to a test event in a composite work cycle; performing, by the one or more processors of the computer system, a D-optimal row selection calculation on the damage rate basis matrix to maximize a determinant of the damage rate basis matrix; assigning the work cycle damage rate estimate to an operation of the machine; selecting, based on the D-optimal row selection calculation, a finite number of strain measurement device locations on the machine; placing, on the machine, a strain measurement device at each of the selected strain measurement device locations; calculating, by the one or more processors of the computer system, a vector of coefficients that, when multiplied by the damage rate basis matrix, results in the extracted target percentile damage rates for each of the one or more strain measurement devices; verifying, based on a calculated vector of coefficients, weightings assigned to operations of the machine; transferring, via the one or more processors, the composite work cycle damage rate estimate assigned to an operation of the machine, to one or more on-board modules of the machine; and performing the operation with the machine, using the one or more on-board modules, based on the composite work cycle damage rate estimate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. One or more non-tangible computer-readable media comprising computer-executable instructions that, when executed on a processor, cause a computing system to perform operations for performing a work operation with a machine based on a composite work cycle damage rate estimate, the operations comprising:
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constructing a damage rate basis matrix, wherein; each row of the damage rate basis matrix corresponds to a location on a machine; and each column of the damage rate basis matrix corresponds to a test event in a composite work cycle; performing a D-optimal row selection calculation on the damage rate basis matrix to maximize a determinant of the damage rate basis matrix; assigning the work cycle damage rate estimate to an operation of the machine; selecting, based on the D-optimal row selection calculation, a finite number of strain measurement device locations on the machine; extracting a target percentile damage rate for each of the one or more strain measurement devices; calculating a vector of coefficients that, when multiplied by the damage rate basis matrix, results in the extracted target percentile damage rates for each of the one or more strain measurement devices; verifying, based on the calculated vector of coefficients, weightings assigned to operations of the machine operations; transferring, via one or more processors, the composite work cycle damage rate estimate assigned to the operation of the machine, to one or more on-board modules of the machine; and performing the operation with the machine, using the one or more on-board modules, based on the composite work cycle damage rate estimate. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for performing a work operation with a machine based on a composite work cycle damage rate estimate, the system comprising:
an analysis module configured to; construct a damage rate basis matrix, wherein; each row of the damage rate basis matrix corresponds to a location on the machine; and each column of the damage rate basis matrix corresponds to a test event in a composite work cycle; perform a D-optimal row selection calculation on the damage rate basis matrix to maximize a determinant of the damage rate basis matrix; select, based on the D-optimal row selection calculation, a finite number of strain measurement device locations on the machine; calculate a vector of coefficients that, when multiplied by the damage rate basis matrix, results in the extracted target percentile damage rates for each of the one or more strain measurement devices; transfer, via one or more processors, the composite work cycle damage rate estimate assigned to an operation of the machine, to one or more on-board modules of the machine; and perform the operation with the machine, using the one or more on-board modules, based on the composite work cycle damage rate estimates.
Specification