高压输电钢管塔柔性法兰承载性能的有限元分析  

Finite Element Analysis on Bearing Performance of Flexible Flange Joint in Steel Tubular Transmission Tower

作　　者：王孟[1] 陈学辉[1] 

机构地区：[1]华北电力大学能源动力与机械工程学院,河北保定071003

出　　处：《华北电力大学学报（自然科学版）》2015年第2期66-71,共6页Journal of North China Electric Power University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51408221)

摘　　要：以某500 k V大跨越输电钢管塔用柔性法兰为研究对象,采用ANSYS软件建立了柔性法兰的三维有限元模型,考虑螺栓、法兰盘接触非线性,获得了轴向载荷下柔性法兰的应力和位移分布情况。通过分析载荷-位移曲线得到了法兰节点的承载力,并与试验结果进行对比,验证了有限元模型的正确性。改变柔性法兰的设计参数再进行有限元计算,得到了各设计参数对法兰节点承载力的影响规律,并据此给出了提高钢管塔柔性法兰承载力的有效措施。This paper focuses on the bearing performance of flexible flange joint subjected to axial force using FE software ANSYS. Elements selection,parameters setting and application of bolt pretension are studied considering the nonlinear contact of the bolt and flange. The stress and deformation distribution of the flange and bolt have been obtained for a 500 kV long-span tubular transmission tower under design load,and verified by the experimental measurements.The FE model results are used to characterize the bearing capacity of the flexible flange joint by changing dimensions of the flange. The results can be used in the design of the flange joins in tubular transmission towers.

关 键 词：输电钢管塔 柔性法兰 有限元分析 承载力 

分 类 号：TM75[电气工程—电力系统及自动化] TU39[建筑科学—结构工程]