• Stef Lommen
This dissertation has investigated whether a combination of DEM and MBD can be used for a reliable and accurate environment for predicting grab unloading performance. A grab is a type of bulk material handling equipment used for unloading materials such as coal and iron ore from vessel to shore. Both a grab and iron ore pellets have been modelled and coupled into a co-simulation. Particle stiffness reductions and coarse graining techniques have been developed and applied to reduce computational costs. The developed large scale coupled grab-pellets model compared very well with validation experiments conducted on a bulk terminal with a scissors grab. A demonstration of virtual prototyping of grabs showed that when this model is implemented in the grab design process significant improvements in grab performance can be achieved.
Original languageEnglish
Awarding Institution
Award date26 May 2016
Place of PublicationDelft, The Netherlands
Print ISBNs978-90-825419-0-8
Publication statusPublished - 2016

    Research areas

  • grabs, discrete element method, multibody dynamics, bulk materials, iron ore, virtual prototyping, DEM, MBD

ID: 4348665