基于APDL的酒杯型输电杆塔参数化建模与分析

Parametric Modeling and Analysis of Cup Type Transmission Tower Based on APDL

摘要: 输电线路电压等级的提高，对输电线路杆塔系统的静态和动态稳定性提出了更高的要求。由于传统的设计方法难于满足新的输电线路的要求。为了在缩短设计周期的前提下，提高设计质量，本文运用参数化有限元方法对架空输电杆塔进行建模，利用APDL参数化语言，通过设定特征参数生成输电塔各基本结构的参数化模板，根据模块之间的关联或约束关系进行模块的组合，完成输电杆塔结构的参数化建模。通过对云南220 kV甘镇线LuZ5型直线酒杯塔的有限元建模和分析，证明了该参数化有限元方法的可行性和有效性，能有效地反映输电杆塔的力学性能，大大提高了模型生成和修改的速度，提高了设计质量，缩短设计周期，提高了设计效率。

Abstract: With the increasing of transmission lines voltage grade, the transmission line-towers system needs higher static and dynamic stability. But it is difficult to meet the demands of design for the new transmission line-towers in traditional way. In order to improve the design quality on condition of shortening the design lifecycle, the parametric finite element method is applied to model the overhead transmission tower. The parametric template of each basic structure is created by setting the characteristic parameters in APDL environment. Then tower is completed by assembling the basic structure according to their relationship and constraint. In this paper, the LuZ5 tangent cup type tower of 220 kV Gan-Zhen line in Yunnan province is modeled and analyzed. The results show that the parametric modeling is feasible and effective; it can effectively reflect the mechanical properties of the transmission tower, highly increase the rate of creating and modifying the model, and consequently shorten the designing cycle and improve the efficiency.