RESEARCH ON MAIN FRAME STRUCTURAL ANALYSIS AND OPTIMAL SYSTEM DESIGN OF WIND TURBINE

Wang Hui; Zhao Chunyu; Liu Shengju

doi:10.19912/j.0254-0096.tynxb.2023-2082

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (4) : 463-468. DOI: 10.19912/j.0254-0096.tynxb.2023-2082

RESEARCH ON MAIN FRAME STRUCTURAL ANALYSIS AND OPTIMAL SYSTEM DESIGN OF WIND TURBINE

Wang Hui, Zhao Chunyu, Liu Shengju

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Abstract

Taking the main frame of a large offshore wind turbine and its adjacent system components as the research object, the simulation calculation and analysis model are established by using finite element method. The influence of the main frame structure on the adjacent system components is researched by the control variable method. And the optimal structural design of the adjacent system component security is obtained by comprehensive analysis. The results show that: Compared to the conventional structure, the vertical （circular） floor of the main frame is located on the upper friction plate. It increases the safety coefficient of the yaw component system by 3.3%. The horizontal floor is located on the rear side of the main frame and main bearing housing connection. It increases the safety coefficient of the main bearing housing component system by 3.4%. The distance between the rear end flange and contact surface between the main frame and main bearing base is properly extended （200 mm）. It increases the safety coefficient of the rear frame component system by 2.9%. On the basis of ensuring the safety of the system structure, the weight of the system structure is reduced by the maximum degree to achieve the optimization design of structure and performance.

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wind turbines / main frame / structural design / system optimization design / strength assessment

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Wang Hui, Zhao Chunyu, Liu Shengju. RESEARCH ON MAIN FRAME STRUCTURAL ANALYSIS AND OPTIMAL SYSTEM DESIGN OF WIND TURBINE[J]. Acta Energiae Solaris Sinica. 2025, 46(4): 463-468 https://doi.org/10.19912/j.0254-0096.tynxb.2023-2082

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