摘要
风电塔筒在风电机组经济性评价中具有重要地位,为研究一体成形纵筋板的轧制工艺,采用有限元方法进行了模拟计算,分析了轧制工艺参数、孔型参数等各种因素对筋高的影响规律;开展了小规格纵筋板轧制实验,获得了一批筋高大于2 mm、基板厚度为3 mm、宽度为200 mm、长度为700 mm的纵筋板。研究表明,在一定条件下加大压下率是提高筋高的有效途径;加热温度过高、保温时间过长会加重烧损,所增加的氧化铁皮会减小摩擦因数,不利于咬入,也不利于成筋。实验所得结果与有限元仿真结果吻合较好,可为加筋塔筒的应用提供理论依据。
The wind power tower plays an important role in the economic evaluation of wind turbine.Therefore,in order to study the rolling process of the integrally formed longitudinal rib plate,the simulation calculation was conducted by finite element method,and the influence laws of various factors such as rolling process parameters and hole-type parameters on the height of rib were analyzed.Then,rolling experiments of small-sized longitudinal rib plate were carried out,and a batch of longitudinal rib plates with the rib height greater than 2 mm,the base plate thickness of 3 mm,the width of 200 mm and the length of 700 mm were obtained.The research shows that increasing the reduction rate under certain conditions is an effective way to increase the height of rib,too high heating temperature and too long holding time will increase the burning loss,and the increased iron oxide scale will reduce the friction factor,which is not conducive to biting and rib formation.The experimental results are in good agreement with the finite element simulation results,which can provide a theoretical basis for the application of tower with ribs.
作者
曹菡
鲁仰辉
李高盛
Cao Han;Lu Yanghui;Li Gaosheng(State Power Investment Corporation Research Institute of Science and Technology Co.,Ltd.,Beijing 100001,China)
出处
《锻压技术》
CAS
CSCD
北大核心
2022年第9期163-167,共5页
Forging & Stamping Technology
关键词
纵筋板
压下率
摩擦因数
孔型设计
轧制
longitudinal rib plate
reduction rate
friction factor
hole-type design
rolling
