Thomas Hauke Roessler

Thomas Hauke Roessler
Otto-von-Guericke University Magdeburg | OvGU · Institute of Logistics and Material Handling Systems

Master of Science

About

17
Publications
10,383
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596
Citations

Publications

Publications (17)
Conference Paper
Full-text available
Abrasive wear between bulk material and machine parts is one of the main causes for failures and downtimes in the bulk material handling industry. Conventional approaches for the wear prediction typically show limited possibilities to consider the real geometry of the parts as well as the granular nature of the bulk material. Hence, DEM simulations...
Article
To consider the movement of materials handling equipment and construction machines in discrete element simulations the interaction between bulk solids and multibody systems needs to be known. For this purpose, the DEM code LIGGGHTS® has been coupled to a universal, standardized interface for model exchange with market‑leading multibody software. In...
Article
Discrete Element Method (DEM) is a well-established and validated tool for the simulation of bulk materials. However, a lot of questions still need answering in the domain of cohesion and adhesion. This paper will present a calibration approach using the draw down test. This test generates several test results which could be used for the calibratio...
Article
The numerical complexity of Discrete Element Method (DEM) simulations generally forces an idealisation of DEM models, making the calibration process the key to realistic simulation results. When calibrating cohesionless, free-flowing bulkmaterials, individual simple experiments are commonly used as reference for the calibration, such as the angle o...
Poster
Full-text available
Die Rückverfolgbarkeit von Schüttgut ist im Bereich der Lebensmitteltechnik eine herausfordernde Aufgabenstellung, die mit dem Stand der Technik nur ungenügend gelöst ist. Dort wo das Gut nicht aktiv gefördert wird, sondern unter Gravitationseinfluss selbst fließt, sind statische Lagermodelle, wie sie z.B. heute zum Silomanagement verwendet werden,...
Conference Paper
Full-text available
The numerical complexity of Discrete Element Method (DEM) simulations generally forces an idealisation of DEM models, making the calibration process the key to realistic simulation results. When calibrating cohesionless, free-flowing bulk materials, individual simple experiments are commonly used as reference for the calibration, such as the angle...
Article
The numerical effort of discrete element method (DEM) simulations results in a general idealisation of DEM models that makes the calibration crucial to obtaining realistic simulation results. The angle of repose test has become a standard test for the calibration of DEM parameters of cohesionless bulk materials and is extensively discussed in the l...
Article
ABSTRACT The numerical complexity of Discrete Element Method (DEM) simulations generally forces an idealisation of DEM models, making the calibration process the key to realistic simulation results. When calibrating cohesionless, free-flowing bulk materials, individual simple experiments are commonly used as reference for the calibration, such as t...
Conference Paper
Full-text available
In the field of construction machinery and bulk material handling equipment, the main cause of equipment failure and downtime is the high level of wear caused by the handling of highly abrasive mineral bulk solids and powders. This wear usually cannot be completely avoided. Due to the complex geometry of the conveyor systems and construction machin...
Article
The numerical effort of computer simulations based on the Discrete Element Method (DEM) forces an idealisation of the DEM models especially when industrial problems are analysed. The idealisation often includes the scale-up of the particle sizes and therefore requires the adaption of contact model parameters to produce realistic simulation results....
Conference Paper
Full-text available
In der Fördertechnik stellen Becherwerke ein wichtiges Element zur Vertikalförderung von Schüttgütern dar. Aufgrund der immer größer werdenden Massenströme greift man zunehmend auf Becherwerke mit hohen Geschwindigkeiten zurück. Das dynamische Verhalten des Gesamtsystems spielt bei der Auslegung und Konstruktion neuer Förderanlagen eine funktionsen...
Article
Full-text available
In the field of construction machinery and bulk material handling technology, one of the main reasons for system failures and reduced service life time is the high wear caused by the handling of abrasive, mineral bulk materials and powders. Up to now, standardized test methods for the evaluation of wear-resistant materials only permit qualitative s...
Conference Paper
Full-text available
The numerical effort of DEM simulations forces generally an idealisation of DEM models which makes the calibration process the key for realistic simulation results. The angle of repose test has become a standard test for the calibration of DEM parameters which is extensively discussed in literature. Different methods of the determination of the ang...
Conference Paper
Wet sticky iron ore poses particular difficulties in every aspect of the material handling process. Material hang-ups in bins, pipes and chutes; carry-back and spillage due to insufficient belt cleaning; clogging of screens; malfunctioning of crushers as well as rat holing of gravity reclaimed stockpiles are all predominantly due to the inherent co...
Conference Paper
Dieses Paper diskutiert den Vorgang des Schüttgutaustrags eines zylindrischen Behälters unter Verwendung eines rotierenden Räumrades. Das Räumrad ist ein spezielles Austragsgerät für die Entleerung von Schüttgütern mit relativ schwierigem Fließverhalten wie heiße Asche in chemischen Reaktoren oder Vergasern. Durch die zentrische Position des Räumra...
Conference Paper
Full-text available
This paper will discuss the process of discharging a cylindrical bin using a rotating paddle feeder. The paddle feeder or discharge wheel is a special device used for the discharge of bulk materials with rather difficult flow behaviour like hot ash in chemical reactors or gasifiers. Due to the centric position of the paddle feeder inside the bin th...

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