Method for reducing the computation resources required for determining damage in structural health management system
First Claim
1. A method for determining damage in a structural health monitoring system comprising a plurality of sensors distributed across a structure, the method comprising:
- dividing the plurality of sensors into a plurality of overlapping sub-arrays comprising a set of sensors, each overlapping sub-array comprising one or more sensors from the set of sensors that are part of the set of sensors for another sub-array, each sub-array comprising a current sensor, and;
for each sub-array;
collecting data from each sensor in the sub-array, the data corresponding to electrical signals produced by waves initiated by the current sensor and detected by a receiving sensor; and
calculating a damage measurement for the sub-array from the collected data;
combining the damage measurement determined for each sub-array; and
determining an overall damage assessment from the combined damage measurements.
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Abstract
A method for determining damage in a structural health monitoring system comprising a plurality of sensors distributed across a structure is disclosed. The method includes decomposing the plurality of sensors into a plurality of sub-arrays. Each sub-array is associated with a current sensor. For each sub-array, data is collected, the data corresponding to electrical signals produced by waves initiated by the current sensor and detected by a receiving sensor. The data is used to calculate a damage measurement for the sub-array. Then, the damage measurement determined for each sub-array is combined to determining an overall damage assessment from the combined damage measurements.
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Citations
21 Claims
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1. A method for determining damage in a structural health monitoring system comprising a plurality of sensors distributed across a structure, the method comprising:
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dividing the plurality of sensors into a plurality of overlapping sub-arrays comprising a set of sensors, each overlapping sub-array comprising one or more sensors from the set of sensors that are part of the set of sensors for another sub-array, each sub-array comprising a current sensor, and;
for each sub-array;
collecting data from each sensor in the sub-array, the data corresponding to electrical signals produced by waves initiated by the current sensor and detected by a receiving sensor; and
calculating a damage measurement for the sub-array from the collected data;
combining the damage measurement determined for each sub-array; and
determining an overall damage assessment from the combined damage measurements. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A structural health monitoring system comprising:
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a plurality of sensors mounted on a structure, the plurality of sensors decomposed into a plurality of sensor sub-arrays, each of the sub-arrays comprising one or more sensors that are also part of another sub-array of the plurality of sub-arrays;
a current sensor associated with each sub-array, each sensor in each sub-away configured to receive signals generated by the current sensor; and
a processor coupled to the plurality of sensors, the processor configured to calculate a sub-array damage assessment for each sub-array based on the signals received by the sensors, the processor further configured to calculate an overall damage assessment from each of the sub-array damage assessments. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for the non-destructive testing of structures comprising:
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decomposing an array of sensors into a series of overlapping sub-arrays of sensors;
performing a non-destructive testing in each sub-array;
determining a sub-array damage assessment for each sub-array; and
combining all sub-array damage assessments to determine an overall damage assessment. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification