Development of a DEM process model for HPC of vibratory finishing

Vibratory finishing is applied in mechanical engineering of turbo machines to reduce the surface roughness of blades in order to significantly increase the level of efficiency. Within the project a numerical model will be developed which allows to predict the material reduction and roughness of blades during the finishing process. 

A process model will be designed and Discrete Element Method (DEM) simulations will be carried out for an efficient computation of the finishing process.

A numerical workflow will be developed which allows for validation of the DEM simulations in order to predict material reduction and surface roughness of blades. The simulations are based on the numerical computation of particle motion of a large number of abrasives in vibratory finishing.

To perform computer simulations most efficiently, both the parallelization of the DEM-tool LIGGHTS will be reconsidered and periodic boundary conditions will be introduced to reduce the system size.

Project duration
August 2014 - July 2015

Contact
Prof. Dr.-Ing. Peter Jeschke, Institut für Strahlantriebe und Turboarbeitsmaschinen (IST), RWTH Aachen University