System and method for damage propagation estimation
First Claim
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1. A program storage device readable by a computer, the device embodying a program or instructions executable by the computer to perform a method to estimate damage propagation comprising:
- making available a set of input parameters to a computational model;
executing the computational model with defined changes within a range of an input parameter of the set of input parameters to define a range of at least one modeled output;
receiving at least one signal responsive to and representative of a respective one of an actual sensor output;
estimating damage propagation based upon a correlation of the received signal to the modeled output; and
generating a signal corresponding to the damage propagation, wherein;
the making available comprises supplying a first range of a first input parameter and a second range of a second input parameter;
the executing comprises defining a response map of the modeled output in response to defined changes within the first range of the first input parameter and defined changes within the second range of the second input parameter; and
the receiving comprises receiving more than one signal responsive to and representative of more than one actual sensor output and the executing comprises defining more than one response map, each of the more than one response maps corresponding to a respective one of the more than one received signals, the method further comprising;
normalizing each of the more than one received signals and corresponding more than one response maps with respect to a reference value;
superimposing the more than one normalized received signals and corresponding more than one normalized response maps; and
determining a collective best match of the more than one superimposed normalized received signals with the corresponding more than one superimposed normalized response maps.
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Abstract
A method to estimate damage propagation is disclosed. The method includes making available a set of input parameters to a computational model, executing the computational model with defined changes within a range of an input parameter of the set of input parameters to define a range of at least one modeled output, receiving at least one signal responsive to and representative of a respective one of an actual sensor output, and estimating damage propagation based upon a correlation of the received signal to the modeled output.
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Citations
20 Claims
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1. A program storage device readable by a computer, the device embodying a program or instructions executable by the computer to perform a method to estimate damage propagation comprising:
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making available a set of input parameters to a computational model; executing the computational model with defined changes within a range of an input parameter of the set of input parameters to define a range of at least one modeled output; receiving at least one signal responsive to and representative of a respective one of an actual sensor output; estimating damage propagation based upon a correlation of the received signal to the modeled output; and generating a signal corresponding to the damage propagation, wherein; the making available comprises supplying a first range of a first input parameter and a second range of a second input parameter; the executing comprises defining a response map of the modeled output in response to defined changes within the first range of the first input parameter and defined changes within the second range of the second input parameter; and the receiving comprises receiving more than one signal responsive to and representative of more than one actual sensor output and the executing comprises defining more than one response map, each of the more than one response maps corresponding to a respective one of the more than one received signals, the method further comprising; normalizing each of the more than one received signals and corresponding more than one response maps with respect to a reference value; superimposing the more than one normalized received signals and corresponding more than one normalized response maps; and determining a collective best match of the more than one superimposed normalized received signals with the corresponding more than one superimposed normalized response maps. - View Dependent Claims (2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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3. The method pro ram storage device of 1, wherein:
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the making available comprises supplying the first range of an efficiency parameter of a turbine engine and the second range of a flow parameter of the turbine engine; and the executing comprises defining the response map in response to defined changes within the first range of the efficiency parameter and defined changes within the second range of the flow parameter.
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14. A system for estimating damage propagation, the system comprising:
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a database comprising a set of input parameters; a processor in signal communication with the database; and a computational model application for executing on the processor, the computational model application performing a method, the method comprising; defining a range of at least one modeled output based upon a range of an input parameter of the set of input parameters; receiving at least one signal responsive to and representative of a respective one of an actual sensor output; estimating damage propagation based upon a correlation of the received signal to the modeled output; and generating a signal corresponding to the damage propagation, wherein; the set of input parameters comprises a first range of a first input parameter and a second range of a second input parameter; the defining the range of at least one modeled output comprises defining a response map of the modeled output in response to defined changes within the first range of the first input parameter and defined changes within the second range of the second input parameter; the receiving comprises receiving more than one signal responsive to and representative of more than one actual sensor output and the defining comprises more than one response map, each of the more than one response maps corresponding to the respective one of the more than one received signal, and wherein the computational model application further performs; normalizing each of the more than one received signals and corresponding more than one response maps with respect to a reference value; superimposing the more than one normalized received signals and corresponding more than one normalized response maps; determining a collective best match of the more than one superimposed normalized received signals with the corresponding more than one superimposed normalized response maps; defining a change of the best match in response to a change in the more than one received signal; and measuring a trajectory and a rate of the change of the best match. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification