Study on Dynamic Simulation of 4-bundle Ice-coated Conductor Galloping Based on 3-D Model
Galloping of power transmission lines is a low frequency self-oscillation with large amplitude. The aerodynamic effect on each sub-conductor of 4-bundle conductor is different due to wake-flow-influence. In order to explore the reasons leading to galloping, a 3-D model for power transmission line is built. A two-node quadratic beam element in 3-D and a structure mass element are applied to establish the finite element model of iced 4-bundle conductor in ANSYS software. Then dynamic transient response calculations are made on this model. According to the results, difference in vibration of sub-conductors and frequency coupling of torsional and transverse vibration can be confirmed. The simulation results illustrate the wake-flow-influence effect and the coupled motions effect on galloping of 4-bundle conductor.
Galloping 4-bundle Conductor 3-D Model Dynamic Simulation
Shi Jing Wu Zeng Lei Zhang Zhen Hao Liu Ji Cai Hu
School of Power and Mechanical Engineering, Wuhan University, Wuhan, 430072, P. R. China
国际会议
上海
英文
474-477
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）