Dynamic Analysis of Seabed-Mining Machine-Flexible Hose Coupling in Deep Sea Mining

摘要

A FEM model of deep sea mining coupling system is built withrnMSC.MARC software, which consists of seabed, mining machine andrnflexible hose. Three-dimensional hexahedron elements are adopted torncalculate dynamic response under mining machine movement in linernpath. The Drucker-Prager elastic-plastic model is introduced to the soilrnmaterial. A short 10-s simulation of the interactions between therndynamics of the mining machine on seabed and the flexible hose isrncarried out. The calculation results show that the soil material model inrnthis paper can reflect the non-linear deformation characteristics of soilrnwell and truly and the bearing capacity and effective traction force canrnbe provided by the seabed in this paper.