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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