Quantification of condition indicators in the presence of synchronous noise
First Claim
1. A method of determining health of a component, comprising:
- using at least one processor to perform processes including;
acquiring a plurality of measured values for the component corresponding to condition indicators;
removing synchronous noise components from the measured values to provide revised measured values; and
using the revised measured values to determine noise-filtered condition indicator values;
determining a health indicator value using the noise-filtered condition indicator values;
mapping a plurality of condition indicator functions for the noise-filtered condition indicator values into a health indicator function for the health indicator value;
determining probability distribution functions for the condition indicator functions; and
determining a probability distribution function for the health indicator function based on the probability distribution functions for the condition indicator functions.
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Abstract
Determining health of a component includes using at least one processor to perform processes including acquiring a plurality of measured values corresponding to the condition indicators. Synchronous noise components are removed from the measured values to provide revised measured values, and the revised measured values are used to determine noise-filtered condition indicator values. The noise-filtered condition indicator values may be used in algorithms to determine the health of the component. Removing synchronous noise components may include determining a predicted value thereof using covariance and autocovariance of the measured values. The component may be a split torque gearbox.
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Citations
20 Claims
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1. A method of determining health of a component, comprising:
using at least one processor to perform processes including; acquiring a plurality of measured values for the component corresponding to condition indicators; removing synchronous noise components from the measured values to provide revised measured values; and using the revised measured values to determine noise-filtered condition indicator values; determining a health indicator value using the noise-filtered condition indicator values; mapping a plurality of condition indicator functions for the noise-filtered condition indicator values into a health indicator function for the health indicator value; determining probability distribution functions for the condition indicator functions; and determining a probability distribution function for the health indicator function based on the probability distribution functions for the condition indicator functions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A non-transitory computer readable storage medium storing software that, when executed by at least one processor, determines health of a component, the software comprising:
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executable code that acquires a plurality of measured values for the component corresponding to condition indicators; executable code that removes synchronous noise components from the measured values to provide revised measured values; and executable code that uses the revised measured values to determine noise-filtered condition indicator values; executable code that determines a health indicator value using the noise-filtered condition indicator values; executable code that maps a plurality of condition indicator functions for the noise-filtered condition indicator values into a health indicator function for the health indicator value; executable code that determines probability distribution functions for the condition indicator functions; and executable code that determines a probability distribution function for the health indicator function based on the probability distribution functions for the condition indicator functions. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification