Mechanical response of transmission lines based on sliding cable element
来源期刊：中南大学学报(英文版)2014年第8期
论文作者：LIU Yun(刘云) QIAN Zhen-dong(钱振东) XIA Kai-quan(夏开全)
文章页码：3370 - 3377
Key words：transmission lines; sliding cable element; updated Lagrangian formulation; geometric nonlinearity; mechanical response
Abstract: In order to study the sliding characteristics when the cable is connected with the other rods in the transmission line structures, a linear sliding cable element based on updated Lagrangian formulation and a sliding catenary element considering the out-of-plane stiffness coefficient are put forward. A two-span and a three-span cable structures are taken as examples to verify the sliding cable elements. By comparing the tensions of the two proposed cable elements with the existing research results, the error is less than 1%, which proves the correctness of the proposed elements. The sliding characteristics should be considered in the practical engineering because of the significant difference between the tensions of sliding cable elements and those of cable element without considering sliding. The out-of-plane stiffness coefficient and friction characteristics do not obviously affect the cable tensions.
LIU Yun(刘云)1, 2, QIAN Zhen-dong(钱振东)2, XIA Kai-quan(夏开全)3
(1. College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China;
2. Intelligent Transportation System Research Center, Southeast University, Nanjing 210096, China;
3. China Electric Power Research Institute, Beijing 100192, China)
Abstract:In order to study the sliding characteristics when the cable is connected with the other rods in the transmission line structures, a linear sliding cable element based on updated Lagrangian formulation and a sliding catenary element considering the out-of-plane stiffness coefficient are put forward. A two-span and a three-span cable structures are taken as examples to verify the sliding cable elements. By comparing the tensions of the two proposed cable elements with the existing research results, the error is less than 1%, which proves the correctness of the proposed elements. The sliding characteristics should be considered in the practical engineering because of the significant difference between the tensions of sliding cable elements and those of cable element without considering sliding. The out-of-plane stiffness coefficient and friction characteristics do not obviously affect the cable tensions.
Key words:transmission lines; sliding cable element; updated Lagrangian formulation; geometric nonlinearity; mechanical response
