TOPOLOGY OPTIMIZATION METHODOLOGY FOR WIND TURBINE FRONT MAINFRAME USING SURROGATE MODEL

Shu Jiaojiao; Wang Hui; Ni Min; Zhao Chunyu; Liu Shengju; Long Kai

doi:10.19912/j.0254-0096.tynxb.2024-1448

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (12) : 584-588. DOI: 10.19912/j.0254-0096.tynxb.2024-1448

TOPOLOGY OPTIMIZATION METHODOLOGY FOR WIND TURBINE FRONT MAINFRAME USING SURROGATE MODEL

Shu Jiaojiao, Wang Hui, Ni Min, Zhao Chunyu, Liu Shengju, Long Kai

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Abstract

The growing capacity of wind turbines and the tendency towards offshore wind turbines pose a challenge in balancing the need for lightweight structures and high reliability. Simultaneously, intensifying market competitiveness results in a reduction in the research and development cycle for the entire machine. To address the aforementioned issues, a structural topology optimization approach for the wind turbine front mainframe was proposed, utilizing a surrogate model. With the goal of minimizing compliance, an artificial volume ratio constraint was set, and torques in different directions were applied to the hub center. The topological optimization results in each direction were obtained and their characteristics were analyzed. The front mainframe was remodeled, and the surrogate model using the finite element method was analyzed to identify the structural construction and its dimensions. The verification results of the optimized structure for its ultimate and fatigue strength demonstrate that the suggested topology optimization methodology is both possible and effective in achieving the lightweight design for the wind turbine front mainframe. Additionally, the product development cycle is significantly reduced.

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wind turbines / fatigue damage / structural design / topology optimization / surrogate model

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Shu Jiaojiao, Wang Hui, Ni Min, Zhao Chunyu, Liu Shengju, Long Kai. TOPOLOGY OPTIMIZATION METHODOLOGY FOR WIND TURBINE FRONT MAINFRAME USING SURROGATE MODEL[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 584-588 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1448

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