Theoretical and Experimental Study on the Dynamic Characteristic of Stayed Cable

Theoretical and Experimental Study on the Dynamic Characteristic of Stayed Cable

This report aimed to develop a numerical model of a stay cable interacted with deck, and to examine the vibration suppression technique of the stayed cable subject to external loading. First, a numerical model based on finite difference method and finite element method has been developed. For the vibration control of cable, a Magneto-Rheological(MR) damper was used as a control device. The MR damper can be achieved either through the passive control strategy or the semi-active control strategy. To verify this, a scaled-down cable structure was designed and constructed in NCREE. The DSMC algorithm using MR damper was studied to reduce the cable vibration under different excitation frequencies.