Coupling multibody and granular dynamics: Experimental validation

Multibody systems can interact with other systems or with the environment via contacts. Such interactions can be solved by different techniques such as the co-simulation process, or a monolithic solver. In some fields of application specific treatments are needed for example when the contacts are stiff and numerous, and when vibrations dramatically impact the behavior of one system. For these applications, dedicated solving strategies have to be applied. To check the coherence of such strategy with the real process, we developed an experimental setup involving a multibody system blending a granular media. The proposed planar experiment consists of a modified four-bar linkage blending a set of disks contained in a vibrating box shaked at different frequencies. The experiment measures the interactions between both systems at different frequencies via a telescopic bar included in the four-bar linkage.