AXIAL VIBRATION MONITORING FOR DETECTING SHAFT MISALIGNMENTS IN TURBOMACHINARY TRAINS
First Claim
1. A system for determining a shaft misalignment in a train of components with serially coupled rotating shafts, comprising:
- a sensor affixed to a component of the train proximate a rotating shaft, wherein the sensor collects vibration data along an axial direction of the rotating shaft;
a frequency analyzer for generating frequency domain data from the vibration data; and
an analysis system for analyzing a frequency component of the frequency domain data at one times a rotational frequency of the rotating shaft to identify a misalignment between the rotating shaft and an adjacently coupled rotating shaft.
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Accused Products
Abstract
A system for determining a shaft misalignment in a turbomachinary train having a plurality of components with serially coupled rotating shafts. A disclosed system includes a sensor affixed to a component of the turbomachinary train proximate a rotating shaft, wherein the sensor collects vibration data along an axial direction of the rotating shaft. Also provided is a frequency analyzer for generating frequency domain data from the vibration data and an analysis system for analyzing a frequency component of the frequency domain data at one times a rotational frequency of the rotating shaft to identify a misalignment between the rotating shaft and an adjacently coupled rotating shaft.
8 Citations
20 Claims
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1. A system for determining a shaft misalignment in a train of components with serially coupled rotating shafts, comprising:
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a sensor affixed to a component of the train proximate a rotating shaft, wherein the sensor collects vibration data along an axial direction of the rotating shaft; a frequency analyzer for generating frequency domain data from the vibration data; and an analysis system for analyzing a frequency component of the frequency domain data at one times a rotational frequency of the rotating shaft to identify a misalignment between the rotating shaft and an adjacently coupled rotating shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A train, comprising:
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a plurality of components with serially coupled rotating shafts; a sensor affixed to at least one component proximate a rotating shaft, wherein the sensor collects vibration data along an axial direction of the rotating shaft; a frequency analyzer for generating frequency domain data from the vibration data; and an analysis system for analyzing a frequency component of the frequency domain data at one times a rotational frequency of the rotating shaft to identify a misalignment between the rotating shaft and an adjacently coupled rotating shaft. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus for determining a shaft misalignment in a train of components with serially coupled rotating shafts, comprising:
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a sensor affixed to a component of the train proximate a rotating shaft, wherein the sensor collects vibration data along an axial direction of the rotating shaft; a frequency analyzer for generating frequency domain data from the vibration data; and an analysis system for analyzing the frequency domain data to generate alignment information of the rotating shaft with respect to an adjacently coupled rotating shaft. - View Dependent Claims (20)
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Specification