METHOD AND SYSTEM FOR MONITORING MOTOR BEARING CONDITION
First Claim
1. A system, comprising:
- an industrial machine comprising a motor and a motor bearing;
a plurality of acoustic sensors disposed adjacent the industrial machine;
a plurality of other sensors disposed adjacent the industrial machine; and
a controller programmed to receive noise signals representative of a noise made by the motor bearing acquired by the plurality of acoustic sensors, to receive signals representative of operational conditions of the industrial machine, to analyze the noise signals to determine characteristics of the noise, to analyze the characteristics of the noise utilizing the operational conditions, to compare the characteristics of the noise to a plurality of models associated with different noises made by the motor bearing that are associated with a particular abnormal operation, and to select a model from the plurality of models that matches the characteristics of the noise.
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Accused Products
Abstract
A system includes an industrial machine that includes a motor and a motor bearing. The system also includes multiple acoustic sensors disposed adjacent the industrial machine. The system further includes multiple other sensors disposed adjacent the industrial machine. The system even further includes a controller programmed to receive noise signals representative of a noise made by the motor bearing acquired by the multiple acoustic sensors, to receive signals representative of operational conditions of the industrial machine, to analyze the noise signals to determine characteristics of the noise, to analyze the characteristics of the noise utilizing the operational conditions, to compare the characteristics of the noise to a plurality of models associated with different noises made by the motor bearing that are associated with a particular abnormal operation, and to select a model from the plurality of models that matches the characteristics of the noise.
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Citations
20 Claims
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1. A system, comprising:
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an industrial machine comprising a motor and a motor bearing; a plurality of acoustic sensors disposed adjacent the industrial machine; a plurality of other sensors disposed adjacent the industrial machine; and a controller programmed to receive noise signals representative of a noise made by the motor bearing acquired by the plurality of acoustic sensors, to receive signals representative of operational conditions of the industrial machine, to analyze the noise signals to determine characteristics of the noise, to analyze the characteristics of the noise utilizing the operational conditions, to compare the characteristics of the noise to a plurality of models associated with different noises made by the motor bearing that are associated with a particular abnormal operation, and to select a model from the plurality of models that matches the characteristics of the noise. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system, comprising:
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a plurality of industrial machines, wherein each industrial machine of the plurality of industrial machines comprises a motor and a motor bearing; a plurality of acoustic sensors disposed adjacent each industrial machine of the plurality of industrial machines; a controller programmed to receive noise signals representative of a noise made by a respective motor bearing of a respective industrial machine acquired by the plurality of acoustic sensors adjacent the respective motor bearing, to analyze the noise signals to determine spectral characteristics of the noise, and to determine if the respective motor bearing needs maintenance based on the spectral characteristics of the noise. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A controller, comprising:
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a processor; and a memory encoding one or more processor-executable routines, wherein the one or more routines, when executed by the processor, cause the controller to; receive, from a plurality of acoustic sensors adjacent a motor bearing of an industrial machine, noise signals representative of a noise made by the motor bearing; analyze the noise signals to determine spectral characteristics of the noise; determine when the motor bearing needs maintenance based on the spectral characteristics of the noise; and provide a recommendation for maintenance of the motor bearing. - View Dependent Claims (18, 19, 20)
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Specification