Calculation of Wind-induced Dynamic Load of Transmission TowerConsidering Coupled Vibration Affection of Conductors
A simplified model, which is composed of one tower and two spans of conductors, is given for overhead transmission line system. With tower regarded as cantilever beam and conductor as string, analytical calculation method of wind-induced vibration response of the mechanics system are studied based on the random vibration theory. A factor called dynamic load factor is introduced to the tower. Vibration response and dynamic factor of a typical transmission line is calculated with the method. Results getting from the analytical method are almost the same as that from Finite Element Method (FEM). It indicates the simplified mechanics model is reasonable and practicable, as well as the analytical method. Although responses of tower are different on conditions considering and not considering the coupled vibration affection of conductors, while the factors are about the same value. Then, dynamic load of tower of the former condition is small than that of the later.
Transmission line Wind-induced vibration Coupled Wind-induced dynamic load factor of tower
Yang Jingbo Li Zheng
China Electric Power Research Institute,Beijing,100055
国际会议
2008 China International Conference on Electricity Distribution (CICED 2008)(2008中国国际供电会议)
广州
英文
1-5
2008-12-10（万方平台首次上网日期，不代表论文的发表时间）