Coupling Simulation Algorithm of Discrete Element Method and Finite Element Method for Particle Damper

Abstract

One advantage of the particle damper is that its property is independent of the surrounding temperature. This allows it to be used in harsh environments where traditional dampers fail. But current design of this damper mainly depends on experimental results because of a lack of theoretical research. In this paper, an investigation into particle dampers is performed analytically and experimentally. A coupling simulation algorithm based on the discrete element method and finite element method is presented. Comparison between the analytical and experimental results shows that simulation of the response of a cantilever plate with a particle damper is accurate. It is shown that the response of the cantilever plate depends on the mass-fill ratio and particle density of the particle damper.

Application of genetic algorithm-support vector regression model to predict damping of cantilever beam with particle damper

“…A particle damper can be introduced without changing the shape of the structure and the addition of mass, and it may be applied in extreme temperature environments where most conventional dampers would fail. 1,2 The damping is obtained by filling particles within the holes of the primary vibrating structure. The performances of damping are strongly dependent on particle material, particle size, fill ratio, location of particle dampers, and so on.…”