Method and device for establishing fault diagnosis model of circulating water pump motor
The invention provides a method and a device for establishing a fault diagnosis model of a circulating water pump motor. The method comprises the following steps: acquiring current sample data and vibration sample data of the circulating water pump motor under different fault working conditions; per...
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| creator | LEI CHENG XU LIEQI GUO LIXIA YANG LEI YANG XIAOBIN HU MING WENG CHENGZHONG WANG YADONG MAO JINFU WEI GUOJUN |
| description | The invention provides a method and a device for establishing a fault diagnosis model of a circulating water pump motor. The method comprises the following steps: acquiring current sample data and vibration sample data of the circulating water pump motor under different fault working conditions; performing feature extraction and dimension reduction on the current sample data to obtain current features after dimension reduction; training a support vector machine by using the current features to form a support vector machine model; performing feature extraction on the vibration sample data by adopting a mechanism-based mode to obtain fault vibration features of the motor under different fault working conditions; establishing a diagnosis model based on an expert system according to the fault vibration characteristics; and establishing a circulating water pump motor fault diagnosis model by combining the support vector machine model and the diagnosis model based on the expert system. According to the method, the |
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The method comprises the following steps: acquiring current sample data and vibration sample data of the circulating water pump motor under different fault working conditions; performing feature extraction and dimension reduction on the current sample data to obtain current features after dimension reduction; training a support vector machine by using the current features to form a support vector machine model; performing feature extraction on the vibration sample data by adopting a mechanism-based mode to obtain fault vibration features of the motor under different fault working conditions; establishing a diagnosis model based on an expert system according to the fault vibration characteristics; and establishing a circulating water pump motor fault diagnosis model by combining the support vector machine model and the diagnosis model based on the expert system. 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The method comprises the following steps: acquiring current sample data and vibration sample data of the circulating water pump motor under different fault working conditions; performing feature extraction and dimension reduction on the current sample data to obtain current features after dimension reduction; training a support vector machine by using the current features to form a support vector machine model; performing feature extraction on the vibration sample data by adopting a mechanism-based mode to obtain fault vibration features of the motor under different fault working conditions; establishing a diagnosis model based on an expert system according to the fault vibration characteristics; and establishing a circulating water pump motor fault diagnosis model by combining the support vector machine model and the diagnosis model based on the expert system. 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The method comprises the following steps: acquiring current sample data and vibration sample data of the circulating water pump motor under different fault working conditions; performing feature extraction and dimension reduction on the current sample data to obtain current features after dimension reduction; training a support vector machine by using the current features to form a support vector machine model; performing feature extraction on the vibration sample data by adopting a mechanism-based mode to obtain fault vibration features of the motor under different fault working conditions; establishing a diagnosis model based on an expert system according to the fault vibration characteristics; and establishing a circulating water pump motor fault diagnosis model by combining the support vector machine model and the diagnosis model based on the expert system. According to the method, the</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CALCULATING COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR |
| title | Method and device for establishing fault diagnosis model of circulating water pump motor |
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