Parametrical finite element modeling of overhead transmission line-towers system

摘要

With large-scale development of ultra high-transmission network,the structure of transmission line-towers system tends to the tower higher,the cross-section of transmission lines larger and span between towers longer.As the increasing of transmission lines voltage grade,transmission line-towers system has higher requirements on static and dynamic stability.It is difficult for traditional design method to meet the demands of new transmission line-towers,not to mention shorten the design cycle,improve design quality.In this paper,we establish overhead transmission line-towers system model based on parameterized fimite element method,by gradually increasing the thickness of the icing,iced load,wind load,weight,mechanical properties under the action of the load and the conductor tension.The analysis results show that the model can effectively reflect the mechanical properties of the transmission towers,and improve the quality of the design,greatly shortening the design cycle.