Numerical simulation of the vibration control effects of particle dampers

Abstract:

Based on the discrete element method, a numerical simulation method of the vibration control effects of particle dampers is established, and the method of determining the corresponding system parameters is introduced. In this method, a suitable particle damper system is modeled, a reasonable time step is determined, an efficient contact detection algorithm is adopted, and the interactions between particles and the container are represented. A shaking table test of a multi-storey frame with particle damper system is carried out. Compared the test results and the simulation results, they are agree well with each other, which demonstrates that the proposed numerical simulation method can yield reasonably accurate estimates of control effects of particle dampers.

Key words:particle damper; discrete element method; structural vibration control