Co-Simulation eines hydraulischen Ersatzuntergrunds zur wirkungsäquivalenten Abbildung mineralischer Materialien = Co-simulation of a Hydraulic Substitute Base for the Effect-equivalent Modelling of Mineral Materials

This paper presents a co-simulation consisting of an FEM (finite element method) and a hydraulic model. The co-simulation can be used to determine the setting parameters for a hydraulic substitute base in order to replicate the behaviour of different types of mineral material. The substitute base, which consists of hydraulic components, enables repeatable measurements on rotary hammers. Previous simulation models for rotary hammers based on impact laws and spring-damper models are not suitable for the development of a hydraulic substitute base, as they do not take into account the influence of the geometry of the impact bodies or cannot be transferred to other bases. With Co-Simulation, the FEM model allows the impact mechanics of a rotary hammer to be simulated, considering the impact body geometry, while the hydraulic model can be used to simulate the damping characteristics of the substitute base.