摘要
主机架是风力发电机组中重要的组成部件之一,其轻量化设计对整机产品的竞争力意义重大。基于变密度法开发了一种针对主机架的结构仿真优化方法,综合考虑了风机整体部件与主机架铸造工艺的影响,采用GAP单元进行轴承滚动体的等效简化,可真实地模拟轴承载荷传递机制。利用该方法成功对某大兆瓦风力发电机组的主机架结构进行拓扑优化设计,得到概念三维结构,并在三维重构后辅以极限强度分析和形状优化分析,进一步精细化修改与设计,从而得到了相对减重9%且可投入工业使用的轻量化主机架。该结构仿真优化方法对风电机组中主机架的轻量化设计有一定的可行性。
The main frame is one of the important components of wind turbine,and its lightweight design of main frame has significant importance to the competitiveness of the whole machine.The structural simulation optimization method of the main frame was developed based on the variable density method,which consider on the casting process of the main frame and the influence of the wind turbine.The bearing load transfer mechanism was simulated by the GAP element,which used to simplify the bearing roller.The main frame of a large megawatt wind turbine was successfully designed with topological optimization,and the conceptual 3D structure was obtained by using this method.After 3D reconstruction,supplemented by ultimate strength analysis and shape optimization analysis,the further refinement modification and design were carried out on the main frame.And the lightweight main frame with a relative weight was reduced by 9%.The results show that the structure simulation optimization method is feasible for the lightweight design of the main frame in the wind turbine.
作者
夏国俊
刘勇
李晓叶
聂新宇
孙哲杰
白璐
XIA Guojun;LIU Yong;LI Xiaoye;NIE Xinyu;SUN Zhejie;BAI Lu(Zhejiang Windy Co.,Ltd.,Hangzhou 310012,China;Key Laboratory of Wind Power Technology of Zhejiang Province,Hangzhou 310012,China)
出处
《能源工程》
2023年第4期10-17,共8页
Energy Engineering
基金
浙江省“尖兵”“领雁”研发攻关计划项目(2022C01178)。
关键词
风力发电机组
主机架
拓扑优化
形状优化
轻量化
wind turbine
main frame
topology optimization
shape optimization
lightweight design
