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Feature extraction and establishment based on pumping unit working conditions and global fault identification
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Taizhu REN, Jun FAN, Xiaxin JIANG
Journal of Mechanical Strength | 2025, 47(1) : 12 - 19
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Journal of Mechanical Strength | 2025, 47(1): 12-19
• Vibration·Noise·Monitoring·Diagnosis •
Feature extraction and establishment based on pumping unit working conditions and global fault identification
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Taizhu REN, Jun FAN, Xiaxin JIANG
Affiliations
  • School of Mechanical Engineering, Xinjiang University, Urumqi 830017, China
Published: 2025-01-15 doi: 10.16579/j.issn.1001.9669.2025.01.002
Outline
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In response to the challenging task of fault feature classification in the current working conditions of pumping units，which results in poor adaptability and low recognition rate of the established diagnosis model. The dynamometer card was pretreated by mathematical morphology through the analysis of the motion state of the pumping unit valve and the sucker rod. Then, two methods of obtaining valve opening and closing points and load variation characteristics were proposed, and 54 new features of global faults of pumping units were extracted, and the characteristic database of working conditions of the pumping unit was established. Finally, the algorithm of decision tree, logistic regression and support vector machine was used to verify that the feature database has good classification effect under different working conditions. The characteristic indexes of different fault conditions were evaluated, and the private rule database of each working condition was obtained. The research results demonstrate that the proposed features in this study are capable of effectively identifying comprehensive faults in pumping units, exhibiting a high level of recognition accuracy.

Oil pumping machine  /  Dynamometer card  /  Feature extraction  /  Fault identification  /  Valve
Taizhu REN, Jun FAN, Xiaxin JIANG. Feature extraction and establishment based on pumping unit working conditions and global fault identification[J]. Journal of Mechanical Strength, 2025 , 47 (1) : 12 -19 . DOI: 10.16579/j.issn.1001.9669.2025.01.002
Funding
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  • National Natural Science Foundation of China(11462021)
Appendix
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Year 2025 volume 47 Issue 1
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58
27
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Article Info
doi: 10.16579/j.issn.1001.9669.2025.01.002
  • Receive Date：2023-06-03
  • Online Date：2026-03-18
  • Published：2025-01-15
Article Data
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History
  • Received：2023-06-03
  • Revised：2023-07-07
Funding
National Natural Science Foundation of China(11462021)
Affiliations
    School of Mechanical Engineering, Xinjiang University, Urumqi 830017, China

Corresponding:

FAN Jun, E-mail：
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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