吊点位置对法兰盘螺孔变形特征的影响规律  

Influence of Lifting Point Position on Deformation Characteristics of Flange Screw Holes

作　　者：贾佳 叶兆艺 卫洪英 李小鹏 沈佳轶[3] JIA Jia;YE Zhaoyi;WEI Hongying;LI Xiaopeng;SHEN Jiayi(Power China Huadong Engineering Co.,Ltd.,Hangzhou 311122,Zhejiang,China;Zhejiang East China Engineering Consulting Co.,Ltd.,Hangzhou 311122,Zhejiang,China;Institute of Port,Coastal and Offshore Engineering,Zhejiang University,Hangzhou 310058,Zhejiang,China;Xilinhot Taifu Wind Power Generation Co.,Ltd.,Xilinhot 026099,Inner Mongolia,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122 [2]浙江华东工程咨询有限公司,浙江杭州311122 [3]浙江大学港口海岸与近海工程研究所,浙江杭州310058 [4]锡林浩特市泰富风力发电有限公司,内蒙古锡林浩特026099

出　　处：《中国海洋平台》2024年第5期83-89,102,共8页China offshore Platform

基　　金：浙江省联合重点基金(编号:LHZ22E090002)。

摘　　要：为了解决风电工程塔筒吊装过程中法兰盘螺孔变形过大的问题,采用有限元数值模拟方法研究吊具吊点位置对塔筒、法兰盘及吊点螺孔变形特征的影响规律。研究结果表明:在重力方向上,主吊附近的塔筒截面及法兰盘发生轻微的压缩变形,辅吊附近的塔筒截面及法兰盘则出现拉伸变形;法兰盘辅吊吊点处的螺孔变形最严重,变形比例达1.575%;当选取辅吊吊点夹角为120°时,塔筒、法兰盘及吊点螺孔的变形均最小。研究成果可为风电工程塔筒吊装施工选取合理法兰盘夹具吊点位置提供参考。In order to solve the problem of excessive deformation of flange screw holes during the hoisting process of tower in wind power engineering,the finite element numerical method is used to study the influence of the lifting point position on the deformation characteristics of the tower,flange plate,and lifting point screw hole during the horizontal lifting of the tower.The research results show that:in the gravity direction,there is slight compression deformation of the tower section and flange plate near the main crane,however,the tower section and flange plate of the auxiliary lifting attachment are of tensile deformation;the screw hole deformation at the auxiliary lifting point of the flange is the most serious,with a deformation ratio of 1.575%;when the angle between the auxiliary lifting points is 120°,the deformation ratio of the tower,flange plate,and lifting point screw hole is the smallest.The research results can provide basis for selecting reasonable flange fixture lifting point positions in the hoisting construction of tower in wind power engineering.

关 键 词：塔筒吊装 数值分析 法兰盘变形 螺孔变形 吊点位置 

分 类 号：P75[天文地球—海洋科学] TM315[电气工程—电机]