Simulation of applying particle damper to torsion vibration of plate

By using the coupling simulation algorithm based on the combination of the discrete element method and the finite element method, the influence on torsion vibration of a plate made by longitudinal placed particle dampers was researched. Establishing a finite element model of aluminum plate, then using discrete element method to deal with the result, and taking the result back to the finite software, by this circulatory coupling simulation algorithm, the plate's torsion vibration was analyzed which was equipped with a longitudinal particle dampers system. The result shows that the natural frequency of three decreases from 526 Hz to 498 Hz after equipping the longitudinal particle dampers system, decreased by 5.3%, and the damping ratio raises from 0.06 to 0.83, rises about 42.2%.