TY - JOUR
T1 - Active mass driver control system for suppressing-wind induced vibration of the Canton Tower structure
AU - Xu, Huai-bing
AU - Zhang, Chun-wei
AU - Li, Hui
AU - Tan, Ping
AU - Ou, Jin-ping
AU - Zhou, Fu-lin
PY - 2014
Y1 - 2014
N2 - In order to suppress the wind-induced vibrations of the Canton Tower, a pair of active mass driver (AMD) systems has been installed on the top of the main structure. The structural principal directions in which the bending modes of the structure are uncoupled are proposed and verified based on the orthogonal projection approach. For the vibration control design in the principal X direction, the simplified model of the structure is developed based on the finite element model and modified according to the field measurements under wind excitations. The AMD system driven by permanent magnet synchronous linear motors are adopted. The dynamical models of the AMD subsystems are determined according to the open-loop test results by using nonlinear least square fitting method. The continuous variable gain feedback (VGF) control strategy is adopted to make the AMD system adaptive to the variation in the intensity of wind excitations. Finally, the field tests of free vibration control are carried out. The field test results of AMD control show that the damping ratio of the first vibration mode increases up to 11 times of the original value without control.
AB - In order to suppress the wind-induced vibrations of the Canton Tower, a pair of active mass driver (AMD) systems has been installed on the top of the main structure. The structural principal directions in which the bending modes of the structure are uncoupled are proposed and verified based on the orthogonal projection approach. For the vibration control design in the principal X direction, the simplified model of the structure is developed based on the finite element model and modified according to the field measurements under wind excitations. The AMD system driven by permanent magnet synchronous linear motors are adopted. The dynamical models of the AMD subsystems are determined according to the open-loop test results by using nonlinear least square fitting method. The continuous variable gain feedback (VGF) control strategy is adopted to make the AMD system adaptive to the variation in the intensity of wind excitations. Finally, the field tests of free vibration control are carried out. The field test results of AMD control show that the damping ratio of the first vibration mode increases up to 11 times of the original value without control.
UR - http://handle.uws.edu.au:8081/1959.7/540457
U2 - 10.12989/sss.2014.13.2.281
DO - 10.12989/sss.2014.13.2.281
M3 - Article
SN - 1738-1991
SN - 1738-1584
VL - 13
SP - 281
EP - 303
JO - Smart Structures and Systems
JF - Smart Structures and Systems
IS - 2
ER -