Research on wear degree recognition of picks based on multifeature information fusion
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Affiliation:

1. College of Mechanical Engineering, Liaoning Technical University, Fuxin 123000, China; 2. Coal Resource Safety Mining and Clean Utilization Engineering Research Center, Fuxin 123000, China;3. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China; 4. School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China; 5. College of Photoelectric Information,Changchun University of Science and Technology,Changchun 130012,China

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TP277

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    Abstract:

    In order to realize the online monitoring and accurate identification of picks wear degree in the cutting process, a new method based on multifeature information fusion was proposed for identifying shearer pick wear degree. The vibration and acoustic emission signals in the cutting process of different picks wear degree were analyzed by time domain analysis and wavelet packet analysis. According to the features of two adjacent pick wear degrees, there were data intersections for characteristic samples, which increased the difficulty of system identification. The optimal fuzzy membership function for each characteristic signal was calculated by using the least fuzzy optimization model, the maximum membership degree of the feature sample was obtained. The backpropagation(BP) neural network recognition model was trained and learned by using multifeature data samples. The experimental results show that the results of network discrimination are consistent with actual wear level of test sample. It can accurately monitor and identify the type of picks wear. The research results have great significance to monitoring and replacement of picks in actual engineering.

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  • Received:
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  • Online: January 24,2018
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