Assembly and method of component monitoring
First Claim
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1. A method of component monitoring for machinery having multiple rotating elements, which are rotated at different rotational speeds, and at least one vibration sensor, the method comprising:
- sampling data from the vibration sensor at a first sampling rate sufficient to monitor a fastest rotational speed of the multiple rotating elements to form a data set;
determining an actual rotational frequency for at least one of the multiple rotating elements during the sampling of the data; and
generating a virtual vibration waveform from the data set for at least one of the multiple rotating elements by filtering the data set to a resampling rate to monitor each of the at least one of the multiple rotating elements,wherein generating the virtual vibration waveform comprises determining the resampling rate based at least partially on the actual rotational frequency of the at least one of the multiple rotating elements,and wherein the first sampling rate is higher than the resampling rate.
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Abstract
A method of component monitoring for machinery having multiple rotating elements, which are rotated at different rotational speeds, the method including sampling data from the vibration sensor at a sampling frequency at least as great as the fastest rotational speed of the multiple rotating elements to form a data set and determining an actual rotational frequency for at least some of the rotating elements during the sampling of the data.
15 Citations
19 Claims
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1. A method of component monitoring for machinery having multiple rotating elements, which are rotated at different rotational speeds, and at least one vibration sensor, the method comprising:
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sampling data from the vibration sensor at a first sampling rate sufficient to monitor a fastest rotational speed of the multiple rotating elements to form a data set; determining an actual rotational frequency for at least one of the multiple rotating elements during the sampling of the data; and generating a virtual vibration waveform from the data set for at least one of the multiple rotating elements by filtering the data set to a resampling rate to monitor each of the at least one of the multiple rotating elements, wherein generating the virtual vibration waveform comprises determining the resampling rate based at least partially on the actual rotational frequency of the at least one of the multiple rotating elements, and wherein the first sampling rate is higher than the resampling rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 17, 18, 19)
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11. An assembly, comprising:
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rotating machinery having multiple rotating elements, which are rotated at different rotational speeds; a vibration sensor configured to measure vibrations of the multiple rotating elements; a tachometer configured to measure a rotational speed of one of the multiple rotating elements; and a processor operably coupled to the vibration sensor and the tachometer to receive information therefrom and configured to sample data from the vibration sensor at a first sampling rate sufficient to monitor a fastest rotational speed of the multiple rotating elements to form a data set, determine an actual rotational frequency for at least one of the multiple rotating elements during the sampling of the data and generate a virtual vibration waveform from the data set for at least one of the multiple rotating elements by filtering the data set to a resampling rate to monitor each of the at least one of the multiple rotating elements, wherein the resampling rate is determined based at least partially on the actual rotational frequency of the at least one of the multiple rotating elements. - View Dependent Claims (12, 13, 14, 15)
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16. A system for vibration monitoring for rotorcraft machinery, the system comprising:
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rotating machinery having multiple rotating elements, which are rotated at different rotational speeds; a single vibration sensor configured to measure vibrations of the multiple rotating elements; a tachometer configured to measure a rotational speed of one of the multiple rotating elements; and a processor operably coupled to the vibration sensor and the tachometer to receive information therefrom and sampling data from the vibration sensor at a first sampling rate sufficient to monitor a fastest rotational speed of the multiple rotating elements to form a data set, determine an actual rotational frequency for at least one of the multiple rotating elements during the sampling of the data and generate a virtual vibration waveform from the data set for at least one of the multiple rotating elements by filtering the data set to a resampling rate to monitor each of the at least one of the multiple rotating elements, wherein the resampling rate is determined based at least partially on the actual rotational frequency of the at least one of the multiple rotating elements, wherein the first sampling rate is higher than the resampling rate, wherein the multiple rotating elements comprise three or more rotating elements and wherein the single vibration sensor monitors vibrations of all of the multiple rotating elements simultaneously.
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Specification