Patent application title: METHODS AND SYSTEMS FOR DETERMINING A NORMALIZED SEVERITY MEASURE OF AN IMPACT OF VIBRATION OF A COMPONENT OF AN INDUSTRIAL MACHINE USING THE INDUSTRIAL INTERNET OF THINGS
Inventors:
IPC8 Class: AG05B2302FI
USPC Class:
1 1
Class name:
Publication date: 2020-05-14
Patent application number: 20200150644
Abstract:
An industrial machine predictive maintenance system and method for
determining a normalized severity measure of an impact of vibration of a
component of an industrial machine. Vibration data can be captured from
at least one vibration sensor disposed to capture vibration of a portion
of an industrial machine and a frequency, a peak amplitude and
gravitational force of the captured vibration can be determined. A
frequency range-specific segment of a multi-segment vibration frequency
spectra that bounds the captured vibration based on the determined
frequency can be determined, and a vibration severity level for the
captured vibration data can be determined based on the determined segment
and at least one of the peak amplitude and the gravitational force. A
signal in a predictive maintenance circuit for executing a maintenance
action on the portion of the industrial machine based on the vibration
severity level can be generated.Claims:
1. A method of determining a normalized severity measure of an impact of
vibration of a component of an industrial machine, comprising: capturing
vibration data from at least one vibration sensor disposed to capture
vibration of a portion of an industrial machine; determining a frequency,
a peak amplitude and gravitational force of the captured vibration;
determining a frequency range-specific segment of a multi-segment
vibration frequency spectra that bounds the captured vibration based on
the determined frequency; calculating a vibration severity level for the
captured vibration data based on the determined segment and at least one
of the peak amplitude and the gravitational force; and generating a
signal in a predictive maintenance circuit for executing a maintenance
action on the portion of the industrial machine based on the vibration
severity level.
2. The method of claim 1, wherein the generated signal activates a watch state of maintenance prediction of the component.
3. The method of claim 1, wherein the generated signal activates a resurvey state of maintenance prediction of the component.
4. The method of claim 1, wherein the generated signal activates an action-soon state of maintenance prediction of the component.
5. The method of claim 1, wherein the generated signal activates an immediate action state of maintenance prediction of the component.
6. The method of claim 1, wherein the multi-segment vibration frequency spectra comprise a first segment with frequency values below a second segment low-end value and a third segment with frequency values above a second segment high-end value.
7. The method of claim 6, wherein at least one of the low-end value and the high-end value are configured from a type of the component of the industrial machine.
8. The method of claim 7, wherein determining a frequency range-specific segment comprises determining a type of the component of the industrial machine and adjusting at least one of the low-end value and the high-end value.
9. The method of claim 1, wherein generating a signal for executing a maintenance action comprises weighting the vibration severity level based on envelop processing of the captured vibration data.
10. The method of claim 1, wherein determining a frequency, a peak amplitude and gravitational force of the captured vibration comprises envelop processing the captured vibration data and mapping at least one vibration peak value of the envelope processed vibration data to the multi-segment vibration frequency spectra.
11. The method of claim 1, wherein the portion of the industrial machine comprises a plurality of components for which a vibration severity level is calculated and wherein generating a signal is based on an aggregation of the vibration severity levels calculated for the plurality of components.
12. A system for determining a normalized severity measure of an impact of vibration of a component of an industrial machine, comprising: a data set comprising vibration data captured from at least one vibration sensor disposed to capture vibration of a portion of an industrial machine; a vibration data analysis circuit for determining a frequency, a peak amplitude and gravitational force of the captured vibration; multi-segment vibration spectra that bound the captured vibration based on the determined frequency into one frequency segment; a vibration severity level calculating circuit that calculates a vibration severity level for the captured vibration data based on the determined segment and at least one of the peak amplitude and the gravitational force; and a predictive maintenance signal generation circuit for activating a maintenance action signal for the portion of the industrial machine based on the vibration severity level.
13. The system of claim 12, wherein the maintenance action signal activates a watch state of maintenance prediction of the component.
14. The system of claim 12, wherein the maintenance action signal activates a resurvey state of maintenance prediction of the component.
15. The system of claim 12, wherein the maintenance action signal activates an action-soon state of maintenance prediction of the component.
16. The system of claim 12, wherein the maintenance action signal activates an immediate action state of maintenance prediction of the component.
17. The system of claim 12, wherein the multi-segment vibration frequency spectra comprise a first segment with frequency values below a second segment low-end value and a third segment with frequency values above a second segment high-end value.
18. The system of claim 17, wherein at least one of the low-end value and the high-end value are configured from a type of the component of the industrial machine.
19. The system of claim 18, wherein the multi-segment vibration spectra that bounds the captured vibration is adapted based on a type of the component of the industrial machine including adapting at least one of the low-end value and the high-end value.
20. The system of claim 19, wherein the captured vibration data comprises envelop processed vibration data.
21. The system of claim 19, wherein the vibration data analysis circuit further envelop processes the captured vibration data and maps at least one vibration peak value of the envelop processed vibration data to the multi-segment vibration frequency spectra.
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