To reduce wind-induced vibration of power transmission tower, several wind-induced vibration reduction schemes with different SAM damper layouts are designed and compared. Firstly, the finite element models of dump-type transmission tower and SMA damper are built with ANSYS software, the wind load is simulated with Matlab software, and the time history samples of random fluctuating wind load are obtained using the linear auto-regressive filter law. Then, six layouts are proposed based on the working principle of damper and the structure of the tower. Finally, wind-induced vibration transient response simulation is performed for each different scheme. The responses of SMA dampers on the displacement and the acceleration of the controlled nodes are compared with each other. The results indicate that the SMA damper can suppress wind-induced vibration, and that different layouts have different control effects. Installing dampers at the tower head can reduce the top node displacement by more than 28% while installing dampers on the tower can reduce the top node acceleration by more than 66%. Through comparison and analysis, the optimal scheme is obtained.

SMA damper  /  vibrating control  /  wind-induced response  /  finite element method