A Fundamental Study on Two-Way Coupled Analysis of SPH and Multibody Dynamics Available to Purchase

In recent, some research issues of engineering in system design have been interested in multiphysics simulation which involves solving coupled system of PDE (Partial differential equation). In this study, a fundamental study on 2-way coupled analysis is investigated for interaction problems combined with hydraulic and rigid body dynamics. A smoothed particle hydrodynamics (SPH) and multibody dynamics (MBD) are employed to represent the dynamic behavior of fluids and rigid bodies, respectively. As the interfacial treatment, the contact forces acting on rigid body due to fluid motion is defined adapting Monaghan boundary force (MBF) (Monaghan et al., 2003). As a simple example of the coupled system, 1-DOF (Degree of freedom) motion in vertical of three plates linked by springs to the top of a rectangular sloshing tank being enforced inline sway motion is assumed for both experiments and simulation. From the results, it is seen that the results obtained from the present simulation are agreed well with those by experiments for time-varied free-surface elevation and vertical displacement of plates.