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Influence and comparison of vertical and horizontal earthquake loads on the crack tip strain field of a 1.5 MW wind turbine tower
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Jie YANG1, Hongwei YUAN1, 2, Guoliang GUO3, Wei CUI1, Haofeng CHEN4
Journal of Mechanical Strength | 2025, 47(4) : 54 - 62
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Journal of Mechanical Strength | 2025, 47(4): 54-62
• ·Fatigue·Damage·Fracture·Failure Analysis· •
Influence and comparison of vertical and horizontal earthquake loads on the crack tip strain field of a 1.5 MW wind turbine tower
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Jie YANG1, Hongwei YUAN1, 2, Guoliang GUO3, Wei CUI1, Haofeng CHEN4
Affiliations
  • 1.Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
  • 2.Anhui Ronds Science & Technology Incorporated Company, Hefei 230088, China
  • 3.Yanfeng Automotive Intelligent Safety System Co., Ltd., Shanghai 201315, China
  • 4.Key Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
Published: 2025-04-15 doi: 10.16579/j.issn.1001.9669.2025.04.007
Outline
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Taking a 1.5 MW wind turbine tower with different initial crack lengths as the research object, vertical and horizontal earthquake loads with four earthquake intensities and three actual earthquakes were applied, respectively. The influence of vertical and horizontal earthquake loads on the strain field at the crack tip of the wind turbine tower was studied and compared. The results indicate that both under vertical and horizontal earthquake loads, the equivalen plastic strain area at the crack tip increases with the increase of earthquake intensity, but under horizontal earthquake loads, the equivalent plastic strain area at the crack tip increases more rapidly. Under earthquake intensities of Ⅵ and Ⅶ, the impact of vertical earthquake loads is greater than that of horizontal earthquake loads. As the earthquake intensity increases, the impact of horizontal earthquake loads increases sharply under earthquake intensities of Ⅷ and Ⅸ, and far exceeding the impact of vertical earthquake loads. The impact of vertical actual earthquake load on the crack tip equivalent plastic strain area is related to the magnitude and earthquake acceleration time-history curve, while the impact of horizontal actual earthquake load on the crack tip equivalent plastic strain area is related to the earthquake acceleration time-history curve.

Vertical earthquake load  /  Horizontal earthquake load  /  Earthquake intensity  /  Actual earthquak  /  Crack tip strain field  /  Wind turbine tower
Jie YANG, Hongwei YUAN, Guoliang GUO, Wei CUI, Haofeng CHEN. Influence and comparison of vertical and horizontal earthquake loads on the crack tip strain field of a 1.5 MW wind turbine tower[J]. Journal of Mechanical Strength, 2025 , 47 (4) : 54 -62 . DOI: 10.16579/j.issn.1001.9669.2025.04.007
Funding
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  • National Natural Science Foundation of China(51975378; 52375154; 52311530067; 52150710540)
Appendix
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Year 2025 volume 47 Issue 4
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67
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Article Info
doi: 10.16579/j.issn.1001.9669.2025.04.007
  • Receive Date：2023-07-14
  • Online Date：2026-03-20
  • Published：2025-04-15
Article Data
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History
  • Received：2023-07-14
  • Revised：2023-09-25
Funding
National Natural Science Foundation of China(51975378; 52375154; 52311530067; 52150710540)
Affiliations
    1.Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
    2.Anhui Ronds Science & Technology Incorporated Company, Hefei 230088, China
    3.Yanfeng Automotive Intelligent Safety System Co., Ltd., Shanghai 201315, China
    4.Key Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China

Corresponding:

YANG Jie, 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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