| abstract |
The invention discloses a wind-induced response finite element analysis method of a transmission line coupled with a local wind field. The method mainly includes two parts: finite element analysis and wind field simulation. First obtain the elevation data around the transmission line, establish the calculation domain and perform grid division, and then calculate the wind field value; then establish the geometric model and finite element model of the transmission line, and perform initial form-finding calculation; finally divide the transmission tower into multiple tower sections According to the wind field value of each tower section, combined with the projected area of the windward side of the transmission tower line and the wind load model to calculate the wind load, the finite element analysis is carried out after the transmission tower line is loaded, and the wind-induced response results are obtained. The invention not only obtains the finite element model of the transmission line and the wind-induced response results under different wind field conditions, but also obtains the terrain model and wind field value around the transmission line. The invention is applicable to wind-induced response analysis of transmission lines under various terrain conditions, and fully reflects the influence of local wind field characteristics on transmission lines. |