Active and passive damping techniques are common methods of attenuating the resonant vibrations excited in a structure.
This approach, although requires high power computing and the dynamic interactions of millions of particles, it is promising and may be used to estimate the effects of various mechanisms on damping.
Efforts were concentrated on characterizing and predicting the behaviour of a range of potential particle materials, shapes, and sizes in the laboratory environment, as well as at elevated temperature.
By considering thousands of particles as Hertz balls, the discrete element model was used to describe the motions of these multi-bodies and determine the energy dissipation.
Prasad et al.[10] have investigated the damping performance of twenty different granular materials, which can be used to design particle dampers for different industries.
Prasad et al.[12] have suggested three different strategies to implement particle dampers in a wind turbine blade to reduce the vibration amplitude.