STRUCTURAL DESIGN ON TRIPOD STRUCTURE OF OFFSHORE WIND TURBINE BASED ON TOPOLOGY OPTIMIZATION METHOD

被引：0
|
作者：
Lu F. [1 ]
Long K. [1 ]
Zhang C. [1 ]
Yang X. [1 ]
Tao T. [2 ]
Jia J. [3 ]
机构：
[1] State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing
[2] China Southern Power Grid Technology Co.，Ltd., Guangzhou
[3] Flying College, Beihang University, Beijing
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 07期
关键词：
fatigue damage; offshore wind turbines; structural design; tripod structures; ultimate strength;
D O I：
10.19912/j.0254-0096.tynxb.2022-0476
中图分类号：
学科分类号：
摘要：
To achieve the lightweight design of the offshore wind turbine（OWT）supporting structures，a topology optimization method for the OWT tripod structure is proposed. Firstly，the optimization problem with the minimum compliance subject to volume fraction is established. The concept design of the tripod structure is performed based on variable density method. Then based on topology optimization results，the tripod structure is reconstructed by deleting the horizontal connecting rod of the reference structure and increasing the thickness of inclined support and central main barrel. Finally，the reliability and effectiveness of the optimized structure are verified from three aspects including the natural frequency，ultimate strength and fatigue strength. The results show that compared with the reference structure，the optimized structure can greatly reduce the total weight of the whole structure while meeting the static，dynamic and fatigue design requirements，which fully proves the feasibility and superiority of the proposed topology optimization method. © 2023 Science Press. All rights reserved.
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页码：339 / 344
页数：5
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