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Study of the Bearing Capacity of Stiffened Tall Offshore Wind Turbine Towers during the Erection Phase

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  • Yu Hu

    (School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    School of Civil Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK)

  • Jian Yang

    (School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    School of Civil Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK)

  • Charalampos Baniotopoulos

    (School of Civil Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK)

Abstract

Offshore wind energy is a rapidly maturing renewable energy technology that is poised to play an important role in future energy systems. The respective advances refer among others to the monopile foundation that is frequently used to support wind turbines in the marine environment. In the present research paper, the structural response of tall wind energy converters with various stiffening schemes is studied during the erection phase as the latter are manufactured in modules that are assembled in situ. Rings, vertical stiffeners, T-shaped stiffeners and orthogonal stiffeners are considered efficient stiffening schemes to strengthen the tower structures. The loading bearing capacity of offshore monopile wind turbine towers with the four types of stiffeners were modeled numerically by means of finite elements. Applying a nonlinear buckling analysis, the ultimate bearing capacity of wind turbine towers with four standard stiffening schemes were compared in order to obtain the optimum stiffening option.

Suggested Citation

  • Yu Hu & Jian Yang & Charalampos Baniotopoulos, 2020. "Study of the Bearing Capacity of Stiffened Tall Offshore Wind Turbine Towers during the Erection Phase," Energies, MDPI, vol. 13(19), pages 1-19, October.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:19:p:5102-:d:422322
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    References listed on IDEAS

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    1. Yu Hu & Jian Yang & Charalampos Baniotopoulos, 2020. "Repowering Steel Tubular Wind Turbine Towers Enhancing them by Internal Stiffening Rings," Energies, MDPI, vol. 13(7), pages 1-23, March.
    2. Zuo, Haoran & Bi, Kaiming & Hao, Hong & Xin, Yu & Li, Jun & Li, Chao, 2020. "Fragility analyses of offshore wind turbines subjected to aerodynamic and sea wave loadings," Renewable Energy, Elsevier, vol. 160(C), pages 1269-1282.
    3. Ko, Yung-Yen, 2020. "A simplified structural model for monopile-supported offshore wind turbines with tapered towers," Renewable Energy, Elsevier, vol. 156(C), pages 777-790.
    4. Michaela Gkantou & Carlos Rebelo & Charalampos Baniotopoulos, 2020. "Life Cycle Assessment of Tall Onshore Hybrid Steel Wind Turbine Towers," Energies, MDPI, vol. 13(15), pages 1-21, August.
    5. O'Leary, Kieran & Pakrashi, Vikram & Kelliher, Denis, 2019. "Optimization of composite material tower for offshore wind turbine structures," Renewable Energy, Elsevier, vol. 140(C), pages 928-942.
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    Cited by:

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    2. Charis J. Gantes & Maria Villi Billi & Mahmut Güldogan & Semih Gül, 2021. "A Novel Tripod Concept for Onshore Wind Turbine Towers," Energies, MDPI, vol. 14(18), pages 1-25, September.
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