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Dynamic characteristic analysis of large-size wind turbine rotor based on experimental modal and operational deflection shape
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Bin MA, Qing ZHANG, Desheng SHA, Qian LI, Yuyu WANG
Thermal Power Generation | 2023, 52(11) : 132 - 139
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Thermal Power Generation | 2023, 52(11): 132-139
• Special topic on new energy power generation technology •
Dynamic characteristic analysis of large-size wind turbine rotor based on experimental modal and operational deflection shape
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Bin MA, Qing ZHANG, Desheng SHA, Qian LI, Yuyu WANG
Affiliations
  • China Huaneng Clean Energy Research Institute, Beijing 102209, China
Published: 2023-11-25 doi: 10.19666/j.rlfd.202303035
Outline
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Test for large-size wind turbine rotor under static and rotating conditions have been carried out for rotor dynamic characteristis. Based on experimental modal and operational deflection shape, firstly this test obtained modal data using LMS TEST.Lab system by calculating FRFs and curve fitting. Secondly the resonate speed was obtained according to the vibration sweep test. Then modal parameters were analyzed through operational deflection shape test under the resonate speed. The results show that the resonate frequency under rotating condition is different from the resonate frequency under the static condition. And the modal shape of rotor under rotating condition is travelling wave while it is standing wave under static condition. In conclusion, the integral stiffness is decreased when the rotor is rotating which results in the decrease of the resonate frequency, the modal shape turns to be the travelling wave resulting from the rotating magnetic force. This research results can offer a reference and guidance for rotor dynamics evaluation, simulation model modification and parameter input, and optimization design of rotor structure .

wind rurbine rotor  /  experimental modal analysis  /  operational deflection shape  /  modal shape  /  dynamic characteristic
Bin MA, Qing ZHANG, Desheng SHA, Qian LI, Yuyu WANG. Dynamic characteristic analysis of large-size wind turbine rotor based on experimental modal and operational deflection shape[J]. Thermal Power Generation, 2023 , 52 (11) : 132 -139 . DOI: 10.19666/j.rlfd.202303035
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  • Research and Development Fund Project of China Huaneng Clean Energy Research Institute(QNYJJ22-18)
Appendix
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Year 2023 volume 52 Issue 11
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141
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Article Info
doi: 10.19666/j.rlfd.202303035
  • Receive Date：2023-03-09
  • Online Date：2026-01-26
  • Published：2023-11-25
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  • Received：2023-03-09
Funding
Research and Development Fund Project of China Huaneng Clean Energy Research Institute(QNYJJ22-18)
Affiliations
    China Huaneng Clean Energy Research Institute, Beijing 102209, 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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