The influence of conductor structure and loads on the galloping of transmission line
ZHOU Kun-tao1; HAO Shu-ying1; LIU Jun1; ZHANG Qi-chang2
1.School of Mechanical Engineering,Tianjin University of Technology,Tianjin 300384,China ;2. Department of Mechanical, Electronic Information Vocational Technology College, Tianjin 300132, China;3. School of Mechanical Engineering, Tianjin University, Tianjin 300072, China
Abstract：For profoundly understanding the influence of conductor structure forms and aerodynamic torsion loads on the dynamic characteristics, the galloping law and amplitude of iced transmission line, a computer program based on nonlinear finite element analysis was developed by applying ANSYS parametric design language, time history curve was obtained. Result indicates that: the galloping amplitude of the bundle conductors is obviously greater than a single conductor, Time needed to come into being steady state of galloping decrease noticeably as more conductors are added ,in the same weather conditions, consequently single conductor and less numbers of conductors in bundle should be adopted as far as possible; aerodynamic torsion loads have slight influence on galloping law and amplitude for in-plane and out-of-plane galloping, but have a greater effect on the amplitude of angle of torsion, therefore the effect of the aerodynamic torsion loads on the breaking of iced transmission lines and towers can be ignored.
周坤涛;郝淑英;刘君;张琪昌. 覆冰输电线结构及载荷对舞动的影响[J]. , 2012, 31(1): 116-120.
ZHOU Kun-tao;HAO Shu-ying;LIU Jun;ZHANG Qi-chang. The influence of conductor structure and loads on the galloping of transmission line. , 2012, 31(1): 116-120.
2012, Vol. 31 
