Vibration analysis for predictive maintenance in machinery
First Claim
1. A method for detecting vibration signatures in a reversible drive, said method comprising the steps of:
- acquiring digital data representative of vibrations in said reversible drive;
identifying portions of said data using a processor means; and
grouping together said identified portions of data in a plurality of groups;
wherein each of said identified portions of data relate to a particular direction of travel of said reversible drive and said plurality of groups relate to different directions of travel of said reversible drive.
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Abstract
A method for detecting vibration signatures in a reversible drive is disclosed. The method includes the steps of acquiring digital data representative of vibrations in the reversible drive and identifying and grouping together portions of data in a plurality of groups. The identified portions of data relate to a particular direction of travel of the reversible drive and the plurality of groups relate to travel in different directions of the reversible drive. The method can include the further step of processing at least one of the groups of data using signal processing techniques. A system and computer program product for practicing the method for detecting vibration signatures in a reversible drive are also disclosed.
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Citations
19 Claims
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1. A method for detecting vibration signatures in a reversible drive, said method comprising the steps of:
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acquiring digital data representative of vibrations in said reversible drive;
identifying portions of said data using a processor means; and
grouping together said identified portions of data in a plurality of groups;
wherein each of said identified portions of data relate to a particular direction of travel of said reversible drive and said plurality of groups relate to different directions of travel of said reversible drive. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 16, 17, 18, 19)
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11. A system for detecting vibration signatures in a reversible drive, comprising:
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transducer means for acquiring digital data representative of vibrations in said reversible drive;
processor means for identifying portions of said data; and
processor means for grouping together said identified portions of data in a plurality of groups;
wherein each of said identified portions of data relate to a particular direction of travel of said reversible drive and said plurality of groups relate to different directions of travel of said reversible drive.
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12. A computer program product having a computer readable medium having a computer program recorded therein for detecting vibration signatures in a reversible drive, wherein said computer program product comprises:
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computer program code means for acquiring digital data representative of vibrations in said reversible drive;
computer program code means for identifying portions of said data; and
computer program code means for grouping together said identified portions of data in a plurality of groups;
wherein each of said identified portions of data relate to a particular direction of travel of said reversible drive and said plurality of groups relate to different directions of travel of said reversible drive.
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13. A method for detecting vibration signatures in a rotating and/or cyclic machinery, comprising the steps of:
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acquiring digital data representative of vibrations in the machinery, wherein the data includes data acquired at different speeds of the machinery;
identifying portions of the data relating to a predetermined speed and acceleration range of the machinery and for identifying portions of the data outside the predetermined speed and acceleration range, wherein a processor means is used for identifying the portions of the data; and
grouping together the identified portions of data relating to the predetermined speed and acceleration range in a group relating to data in the predetermined speed and acceleration range, by appending successive portions to an accumulation of previous data portions also relating to the predetermined speed and acceleration range.
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14. A system for detecting vibration signatures in a rotating and/or cyclic machinery comprising:
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transducer means for acquiring digital data representative of vibrations in the machinery;
processor means for identifying portions of said data relating to a predetermined speed and acceleration range of the machinery and for identifying portions of the data outside the predetermined speed and acceleration range; and
processor means for grouping together said identified portions of data relating to the predetermined speed and acceleration range in a group relating to data in the predetermined speed and acceleration range by appending successive portions to an accumulation of previous data portions also relating to the predetermined speed and acceleration range.
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15. A computer program product having a computer readable medium having a computer program recorded therein for detecting vibration signatures in a rotating and/or cyclic machinery said computer program product comprising:
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computer program code means for acquiring digital data representative of vibrations in the machinery;
computer program code means for identifying portions of said data relating to a predetermined speed and acceleration range of the machinery and for identifying portions of the data outside the predetermined speed and acceleration range; and
computer program code means for grouping together said identified portions of data relating to the predetermined speed and acceleration range in a group relating to data in the predetermined speed and acceleration range by appending successive portions to an accumulation of previous data portions also relating to the predetermined speed and acceleration range.
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Specification