OVERVIEW

Rocky DEM is a powerful, 3D Discrete Element Modeling (DEM) program that quickly and accurately simulates the granular flow behavior of different shaped and sized particles within a conveyor chute, mill, or other materials handling equipment.

Several capabilities set Rocky DEM apart from other DEM codes, including non-round particle shapes, the ability to simulate particle breakage without loss of mass or volume, the visualization of boundary surface reduction due to wear, and more.

Mining and manufacturing organizations all over the world are choosing Rocky DEM software to evaluate their bulk material handling systems because Rocky DEM simulates granular flow quickly, accurately, and with more similarity to real-world conditions than ever before. With its ability to create realistic shapes that settle and compact just like actual particles, and its variable sticky and dust-like conditions, Rocky DEM can replicate nearly any type of material handling environment imaginable.

The streamlined calculations and GPU processing capabilities included within Rocky DEM produce faster and more accurate results when compared to other DEM products. And Rocky DEM can simulate more than 5 million particles in nearly limitless size and shape distributions from rocks to grain, metal to plastic, and beyond.

Realistic Results

NON-ROUND PARTICLES

Rocky DEM uses truly non-spherical particle models that behave like real-world particles, which produces more realistic results.
Breakage simulations

BREAKAGE SIMULATIONS

Rocky DEM simulates breakage by calculating the fracture of each particle based upon the energy generated from impact or friction.
Millions of Particles

GPU PROCESSING

Rocky DEM is new use of the GPU accelerates the computational workload, especially when processing simulations with many particles.




FEATURES

• Streamlined Calculations
• Double-Precision Processing, now with GPU Capabilities
• Large Particle Size Distributions
• Non-Round Particle Shapes
• Sticky and Dry Contact Rheologies
• 3D Surface Wear Modification
• Animated & Vibrating Boundaries
• Easy CAD Geometry Import and Simulation Setup
• Graphical and At-a-Glance Wear and Power Data
• FEA Integration with ANSYS
• 360° Wraparound Movie View Transitions





CUSTOMIZATION

Rocky DEM is software package that can be catered to the unique needs of each company. The team of developers at ESSS is empowered to adapt the program code to meet the requests of each client as desired.



COMMUNICATION

- Allows the import of XGL, STL and DXF files that can be exported from CAD programs such as Autodesk Inventor and AutoCAD;
- Allows geometry and impact data to be saved for easy import into a Finite Element Methods (FEM) analysis program.



ROCKY DEM AND ANSYS COUPLING

Granular materials are commonly found in nature and are also used in many industries, but a better understanding of their behavior is still needed. Sometimes particle flow can be deformed from solid bodies or soils; others may flow more similar to liquids or even compress like gases.

Therefore, there is an increasing need to design protective structures that can withstand or mitigate the impulsive loading due to the impact of a particle or bulk of solids. A reliable predictive model to determine the behavior of bulk solids and their effect on equipment structure can solve, or even avoid completely, many of these problems.

The simplest form of a particle-to-structure interaction (PSI) model is a one-way coupling where the DEM solver (e.g, Rocky DEM) provides load-sets (stresses generated by the solids within the equipment) to be used in a structural analysis tool (e.g, ANSYS). This coupling requires the use of the ANSYS (or other FEM solver) to predict the structural response to the loads estimated by Rocky DEM. Rocky DEM has a fast and accurate method of coupling the DEM and FEM methods on non-coincidental meshes. The load estimated by the Rocky DEM analysis is passed to ANSYS to predict the structural response, or one-way coupling.