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Repair Parameter Design of Outer Reinforcement Layers of Offshore Wind Turbine Blade Spar Cap Based on Structural and Aerodynamic Analysis

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Listed:
  • Hui Li

    (School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870, China)

  • Xiaolong Lu

    (School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870, China)

  • Wen Xin

    (School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870, China
    School of Mechanical Engineering, Liaoning Institute of Science and Technology, Benxi 117004, China)

  • Zhihui Guo

    (School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870, China)

  • Bo Zhou

    (School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870, China)

  • Baokuan Ning

    (School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870, China)

  • Hongbing Bao

    (Jiangsu Key Laboratory of Hi-Tech Research for Wind Turbine Design, Wuxi 214174, China)

Abstract

The influence of the outer reinforcement layers on the repair structure and aerodynamic performance was studied. Firstly, a continuous damage mechanics model was established, and the 3D Hashin criterion and cohesive zone material model were used to analyze the damage repair model. The failure load deviation was 5.5%. Secondly, on the basis of the γ − R e θ transition model and SST–ω turbulence model, the aerodynamic analysis model of DU300 airfoil was established. The numerical simulation results showed that the lift coefficient and pressure distribution at the angle of attack of 10° and 15° were deviated from the experimental values by 2%. Furthermore, 27 structural repair models, nine 2D aerodynamic repair models, and a 3D full-scale blade model were designed. It was found that, when the repair length accounted for 60% of the total model length, the failure load increased by 22%, but the aerodynamic power with the repair length of 10 m was decreased by 0.137%. When the repair area was large and the repair height was from 4 mm to 6 mm, the failure load was greatly increased by about 30%, and the aerodynamic pressure distribution and static pressure field fluctuated significantly. The results show that the structural and aerodynamic characteristics were closely related to the repair parameters.

Suggested Citation

  • Hui Li & Xiaolong Lu & Wen Xin & Zhihui Guo & Bo Zhou & Baokuan Ning & Hongbing Bao, 2023. "Repair Parameter Design of Outer Reinforcement Layers of Offshore Wind Turbine Blade Spar Cap Based on Structural and Aerodynamic Analysis," Energies, MDPI, vol. 16(2), pages 1-24, January.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:2:p:712-:d:1028319
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    References listed on IDEAS

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    1. Arcos Jiménez, Alfredo & Zhang, Long & Gómez Muñoz, Carlos Quiterio & García Márquez, Fausto Pedro, 2020. "Maintenance management based on Machine Learning and nonlinear features in wind turbines," Renewable Energy, Elsevier, vol. 146(C), pages 316-328.
    2. Mishnaevsky, Leon, 2019. "Repair of wind turbine blades: Review of methods and related computational mechanics problems," Renewable Energy, Elsevier, vol. 140(C), pages 828-839.
    3. Mahmood Shafiee & Michael Patriksson & Ann-Brith Strömberg, 2013. "An Optimal Number-Dependent Preventive Maintenance Strategy for Offshore Wind Turbine Blades Considering Logistics," Advances in Operations Research, Hindawi, vol. 2013, pages 1-12, July.
    4. Khazar Hayat & Shafaqat Siddique & Tipu Sultan & Hafiz T. Ali & Fahed A. Aloufi & Riyadh F. Halawani, 2022. "Effect of Spar Design Optimization on the Mass and Cost of a Large-Scale Composite Wind Turbine Blade," Energies, MDPI, vol. 15(15), pages 1-17, August.
    5. Shafiee, Mahmood & Finkelstein, Maxim & Bérenguer, Christophe, 2015. "An opportunistic condition-based maintenance policy for offshore wind turbine blades subjected to degradation and environmental shocks," Reliability Engineering and System Safety, Elsevier, vol. 142(C), pages 463-471.
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