摘要
为实现风电机组前机舱底座的轻量化设计,提出基于拓扑优化、形状优化驱动的结构设计流程。在拓扑优化中,分别对比多工况柔顺度加权、柔顺度最大值最小化和单一弯矩作用下的拓扑优化结果异同,并指出各类拓扑优化模型的优缺点和适用范围。依据拓扑优化结果,重构几何模型,对局部强度不足位置通过形状优化、加强结构进行优化设计。最终的优化结构可优化空间(去掉底座、轴承座)减重8.85%且完全满足强度设计要求。该结果验证了拓扑优化方法在机舱底座概念设计的可行性。
To achieve the lightweight design of the front nacelle base for wind turbines,a structural design process driven by topology optimization and shape optimization is proposed.Within the scope of topology optimization,a comparative analysis was conducted to assess the differences and similarities in the results obtained under various conditions,including compliance-weighted optimization for multiple load cases,minimization of the maximum compliance,and topology optimization under the influence of a single bending moment.This examination aimed to elucidate the strengths and weaknesses of each type of topology optimization model,and to identify their respective applicability ranges.Inspired by topology optimization,the geometric model is reconstructed,and shape optimization is employed to address localized strength deficiencies,reinforcing the structure through optimized design.The ultimate optimized structure achieves an 8.85%weight reduction by optimizing the available space(eliminating the base plate and bearing seat),while fully meeting the strength design requirements.These results validate the feasibility of the proposed topology optimization method in the conceptual design of the front nacelle base.
作者
王慧
舒娇娇
倪敏
赵春雨
柳胜举
龙凯
Wang Hui;Shu Jiaojiao;Ni Min;Zhao Chunyu;Liu Shengju;Long Kai(Mingyang Smart Energy Group Limited,Zhongshan 528437,China)
出处
《太阳能学报》
北大核心
2025年第9期11-16,共6页
Acta Energiae Solaris Sinica
关键词
风电机组
结构设计
拓扑优化
前机舱底座
强度校核
wind turbines
structural design
topology optimization
front nacelle base
strength assessment
作者简介
通信作者:龙凯(1978-),男,博士、副教授、硕士生导师,主要从事风电机组结构仿真与优化设计、连续体结构拓扑优化理论方法方面的研究。longkai1978@163.com。
