输电线路脱冰参数化有限元法的实现及应用

Implementation and application of parametric finite element method of ice-shedding on transmission lines

针对输电线路脱冰动力响应计算问题提出基于参数化有限元的分析方法.首先实现了结构的参数化建模和荷载的参数化模拟;然后基于ANSYS软件平台,以VC++为开发工具,编制交互界面软件以实现不同相数、不同档数和不同分裂数的输电线路脱冰参数化有限元分析,实例证明该软件具有较高的精度和实用性;最后利用该软件进行不同参数条件下脱冰工况计算,对传统的冰跳高度经验公式进行修正,使该公式能够较为精确地计算实际线路的脱冰跳跃高度,并能作为线路设计的参考依据.

The parametric finite element method was proposed for the ice-shedding dynamic response calculation on transmission lines.First parametric modeling and load parametric simulation were realized.Then based on ANSYS software platform,VC＋＋development tool,by developing an interface software,the analysis of ice-shedding at different number of phase,span and bundled on transmission lines was realized.Examples show that this software has higher precision and practicality.Finally by different structure parameters under the conditions of the ice-shedding calculation,the traditional ice dancing highly empirical formula was corrected,so the formula can calculate the actual line of iceshedding jump height more accurately,which can be used as line design reference.