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Research on Vibration Characteristics of Shafting System of Hydroelectric Generating Set Under Different Load Conditions
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Jia-jie ZOU1, Da-qing ZHOU1, Jun-xun GUO2, Wen-chang DONG1, Yin-song WANG1, Jun-song YOU2
Water Resources and Power | 2023, 41(3) : 176 - 180
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Water Resources and Power | 2023, 41(3): 176-180
• ELECTROMECHANICS AND CONTROL ENGINEERING •
Research on Vibration Characteristics of Shafting System of Hydroelectric Generating Set Under Different Load Conditions
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Jia-jie ZOU1, Da-qing ZHOU1, Jun-xun GUO2, Wen-chang DONG1, Yin-song WANG1, Jun-song YOU2
Affiliations
  • 1.College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China
  • 2.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210024, China
Published: 2023-03-25 doi: 10.20040/j.cnki.1000-7709.2023.20221761
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The flow channel model and the shafting model of the turbine unit were established, and the fluid-solid coupling method was used to analyze the dynamic characteristics of the shafting system vibration of turbine unit induced by hydraulic factors under the steady-state conditions with different loads. The measured data were compared to verify the feasibility of the method. And then the correlation mechanism between the vibration characteristics and the internal flow characteristics under typical steady-state conditions was studied. The results show that the vibration characteristics of the guide bearing obtained by this method are basically consistent with the experimental values, and the trend of vibration changes with the change of load is consistent. Due to the positional relationship, the vibration characteristics of the water guide bearing and the upper guide bearing have a certain amplitude difference. The horizontal vibration amplitude of the unit is the largest due to the obvious vortex belt in the draft tube when running at 75% load condition. The research results can provide a scientific reference for the stable operation of hydropower turbine units under different loads.

hydropower unit  /  vibration characteristics  /  guide bearing  /  fluid solid coupling
Jia-jie ZOU, Da-qing ZHOU, Jun-xun GUO, Wen-chang DONG, Yin-song WANG, Jun-song YOU. Research on Vibration Characteristics of Shafting System of Hydroelectric Generating Set Under Different Load Conditions[J]. Water Resources and Power, 2023 , 41 (3) : 176 -180 . DOI: 10.20040/j.cnki.1000-7709.2023.20221761
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Year 2023 volume 41 Issue 3
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20221761
  • Receive Date：2022-05-25
  • Online Date：2026-01-28
  • Published：2023-03-25
Article Data
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History
  • Received：2022-05-25
  • Revised：2022-10-17
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Affiliations
    1.College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China
    2.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210024, China
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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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