Vibration Reduction Performance Comparison of Inertial Damping and Viscous Damping of Nanxi River Bridge Stay Cables
In view of the vibration control of cable in Nanxi River Bridge,two technical schemes of vibration damping are proposed.U-sing the finite difference method,the numerical model of inertial damping and viscous damping finite difference is established respec-tively,and the analysis of the control performance of multiple mode is characterized by the damping ratio and comparison.The results show that in Nanxi River Bridge stay cable before the fifth order model for control target,cable inertial damping than viscous damping performance of 8.7%,and when the control target for the first fifteen order,inertia coefficient and its effect,makes the overall vibration performance is consistent,but the inertial damping of individual mode damping performance will still be better.
stay cableviscous dampinginertial dampingfinite difference model
NETL
NSTL
万方数据
