Fachbereich Maschinenbau und Mechatronik
Refine
Year of publication
Institute
- Fachbereich Maschinenbau und Mechatronik (876)
- MASKOR Institut für Mobile Autonome Systeme und Kognitive Robotik (20)
- ECSM European Center for Sustainable Mobility (15)
- Fachbereich Elektrotechnik und Informationstechnik (6)
- Fachbereich Luft- und Raumfahrttechnik (6)
- IaAM - Institut für angewandte Automation und Mechatronik (4)
- Fachbereich Chemie und Biotechnologie (3)
- Fachbereich Medizintechnik und Technomathematik (2)
- Fachbereich Wirtschaftswissenschaften (2)
- Fachbereich Architektur (1)
Document Type
- Article (490)
- Conference Proceeding (209)
- Book (99)
- Part of a Book (32)
- Lecture (21)
- Report (8)
- Bachelor Thesis (5)
- Contribution to a Periodical (3)
- Doctoral Thesis (2)
- Master's Thesis (2)
Keywords
- Rapid Prototyping (8)
- Rapid prototyping (6)
- Übungsklausur (5)
- Additive manufacturing (4)
- Gamification (4)
- Fertigungsverfahren (3)
- Mikrosystemtechnik (3)
- Regelungstechnik (3)
- SLM (3)
- additive manufacturing (3)
- 3D-Printing (2)
- Actuators (2)
- Additive Manufacturing (2)
- Aktor (2)
- Aktoren (2)
- Brake set-up (2)
- Digital Twin (2)
- Freight rail (2)
- Geschichte (2)
- IO-Link (2)
- L-PBF (2)
- LPBF (2)
- Lasermesstechnik (2)
- Lasertechnologie (2)
- Microfabrication (2)
- Rapid Manufacturing (2)
- Sensor (2)
- Sensoren (2)
- Sensores (2)
- Stereolithographie (2)
- Virtuelles Laboratorium (2)
- Werkstoffkunde (2)
- factory planning (2)
- fused filament fabrication (2)
- manufacturing flexibility (2)
- rapid manufacturing (2)
- rapid tooling (2)
- 10BASE-T1L (1)
- 316L (1)
- 3D nonlinear finite element model (1)
- 3D printing (1)
- 3D-printing (1)
- 802.15.4 (1)
- Abtragen (1)
- Adaptive Systems (1)
- Arduino (1)
- Assembly (1)
- Assessment (1)
- Asset Administration Shell (1)
- Augmented Reality (1)
- Balanced hypergraph (1)
- Biegeumformen (1)
- Binder Jetting (1)
- Blended-Learning (1)
- Bluetooth (1)
- Brake test (1)
- Braking curves (1)
- Business Simulations (1)
- Collaborative robot (1)
- Computersimulation (1)
- Designpraxis (1)
- Digital Twins (1)
- Digital manufacturing (1)
- Digitale Regelungstechnik (1)
- Directed Energy Deposition (1)
- Distributed Control Systems, (1)
- Driver assistance system (1)
- Druck-Umformen (1)
- Drucksensor (1)
- Duality (1)
- E-Learning (1)
- Effective modal mass (1)
- Einbetten in das Internet der Dinge (1)
- Elektronik (1)
- Elektrotechnik (1)
- Energietechnik (1)
- Error Recovery (1)
- Ethernet (1)
- Eutectic Silver Copper alloy (1)
- Excel und VBA (1)
- Extrusionsverfahren (1)
- FLM (1)
- Fertigungsprozess (1)
- Field device (1)
- Funktionsmodelle (1)
- Fused deposition modelling (1)
- Fuzzy Regelung (1)
- Generative Fertigungstechnik (1)
- Gießen (1)
- Gießharzwerkzeuge (1)
- Glass powder (1)
- Hall’s Theorem (1)
- Hand-on-training (1)
- Hochschule / Lehre / Evaluation (1)
- Human factors (1)
- Human-Robot interaction (1)
- Humidity (1)
- Hypergraph (1)
- Incident analysis (1)
- Industrial Automation Technology, (1)
- Industrial Communication (1)
- Industry 4.0 (1)
- Innenströmung (1)
- Kawasaki (1)
- Knowledge Transfer (1)
- Koenig’s Theorem (1)
- LabVIEW (1)
- Laminat Verfahren (1)
- Laminated-Object-Manufacturing (1)
- Laser (1)
- Laser processing (1)
- Laser-Doppler-Velozimetrie (1)
- Laser-Powder Bed Fusion (1)
- Laseroptische Strömungsmessung (1)
- Lasersintern (1)
- Laserstrahlsintern (1)
- Lernprogramm (1)
- Level system (1)
- MAG-Schweißen (1)
- MEMS ; education and training foundry (1)
- MIG-Schweißen (1)
- MST (1)
- Matching (1)
- Materialbearbeitung (1)
- Mechatronik (1)
- Melting (1)
- Minimal-Ansatz für Embedded-Systeme (1)
- Modellkanäle (1)
- Multi-agent Systems (1)
- Natural frequency (1)
- Oberflächentechnik (1)
- PROFINET (1)
- Path planning (1)
- Porositat (1)
- Powder Material (1)
- Produktentstehung (1)
- Produktenwicklung (1)
- Prototypen (1)
- Prototyper (1)
- Prototyping (1)
- Pulvermetallurgie (1)
- Rapid Technologie (1)
- Rapid manufacturing (1)
- Rapid prototyping <Fertigung> (1)
- Rapid-prototyping (1)
- Reinraumpraktikum (1)
- Response Surface Method (1)
- Roboter (1)
- Roboter-Schweißen (1)
- Robotik (1)
- SOA (1)
- Safety concept (1)
- Schweißen (1)
- Selektives Laser Schmelzen (1)
- Sensors (1)
- Serious Games (1)
- Shunting (1)
- Silber (1)
- Spanlose Fertigungsverfahren (1)
- Strömungsanalyse (1)
- Support System (1)
- Suspension bridge (1)
- Technologietransfer (1)
- Thermal conductivity (1)
- Thin shell finite elements (1)
- Train composition (1)
- Training (1)
- Umformverfahren (1)
- Urformen (1)
- User study (1)
- VDI-Wärmeatlas (1)
- VM (1)
- Vakuumgießen (1)
- Vertex cover (1)
- Virtual Technology Lab (1)
- Virtual reality (1)
- Virtuelle Maschine (1)
- Virtuelle Sensor-Fertigung (1)
- Virtuelles Labor (1)
- Werkzeuge (1)
- Werkzeugeinsätze (1)
- Wireless Networks (1)
- Workspace monitoring (1)
- Wärmeübertrager (1)
- Wärmeübertragung (1)
- Zugdruckumformen (1)
- Zugumformen (1)
- adaptive systems (1)
- additive manufactureing (1)
- assistance system (1)
- autonomous navigation (1)
- blended learning (1)
- compression behavior (1)
- crystallization (1)
- cyber-physical production systems (1)
- digital factory (1)
- event-based simulation (1)
- gamification (1)
- generative Fertigungsverfahren (1)
- glass (1)
- hands-on cleanroom training (1)
- industrial agents (1)
- infill strategy (1)
- large-scale inspection (1)
- laser based powder fusion (1)
- manufacturing (1)
- manufacturing data model (1)
- manufacturing process (1)
- mechatronics (1)
- mix flexibility (1)
- mobile manipulation (1)
- mobile robots (1)
- multi-agent systems (1)
- polyetheretherketone (1)
- polyetheretherketone (PEEK) (1)
- product development (1)
- product emergence (1)
- production planning and control (1)
- prototyper (1)
- prototypes (1)
- service-oriented architectures (1)
- surface-orthogonal path planning (1)
- technology diffusion (1)
- technology planning (1)
- technology transfer (1)
- virtual (1)
- virtual clean room (1)
- virtual machines (1)
- virtual sensor fabrication (1)
- virtuelle Maschinen (1)
- volume flexibility (1)
- welded joint (1)
- welding (1)
- wind turbine production (1)
- working models (1)
Mit der Digitalen Automatischen Kupplung beginnt ein neues Kapitel des Schienengüterverkehrs, in dem zusammengestellte Wagen sich automatisch in wenigen Minuten abfahrbereit machen, ohne dass der Mensch eingreifen muss. Eines des größten Hemmnisse der umweltfreundlichen Schiene wird dann entfallen. Notwendig ist jetzt eine Diskussion über den Umfang und die Systemgrenzen der Automatischen Bremsprobe.
Neue Perspektiven für die Bahn in der Produktions- und Distributionslogistik durch Prozessautomation
(2019)
Deutschland braucht mehr Eisenbahn um CO2-Emissionen aus dem Verkehr zu reduzieren. Sie muss zum Rückgrat aktueller Logistikprozesse, z.B. bei Kaufmannsgütern und E-Commerce, werden. Dies geht nicht ohne neuartige betriebliche Konzepte und eine Transformation des Güterwagens von einem „dummen Stück Stahl“ zu einem modernen Werkzeug der Logistik.
Als „Güterwagen 4.0“ wird ein kommunikativer und kooperativer Güterwagen verstanden, der die Voraussetzung zur Automatisierung aller Prozesse der Zugvorbereitung bereitstellt, sich aber ansonsten vollkommen kompatibel mit heutigen Betriebsverfahren im Hauptlauf präsentiert. Durch Kommunikation zwischen Güterwagen und umgebenden intelligenten Systemen im Sinne eines „Internet der Dinge“ gelingt damit unter Anderem die Realisierung hoch effizienter Gleisanschlussverkehre, die der Güterbahn neue Märkte abseits der klassisch bahn-affinen Verkehre erschließen und letztlich den Wandel zu einer nachhaltigen Gütermobilität fördern.
Lokomotiven sind dank modernster Konzepte der Antriebstechnik heute energiesparend und umweltfreundlich. Eine Ausrüstung mit Telematik und Assistenzfunktionen ist Standard. Auf der Strecke zeigt sich moderne Technik in Form elektronischer Stellwerke und Zugsicherungssysteme und in Rangier- und Abstellanlagen als EOW-Technik. Am Güterwagen hingegen ist der technische Fortschritt komplett vorbeigegangen. Auch beim modernsten Wagen (Abb. 1) ist die einzige „Automatik“-Funktion die zentral über die Hauptluftleitung (HL) versorgte und betätigte Luftbremse.
The thermal conductivity of components manufactured using Laser Powder Bed Fusion (LPBF), also called Selective Laser Melting (SLM), plays an important role in their processing. Not only does a reduced thermal conductivity cause residual stresses during the process, but it also makes subsequent processes such as the welding of LPBF components more difficult. This article uses 316L stainless steel samples to investigate whether and to what extent the thermal conductivity of specimens can be influenced by different LPBF parameters. To this end, samples are set up using different parameters, orientations, and powder conditions and measured by a heat flow meter using stationary analysis. The heat flow meter set-up used in this study achieves good reproducibility and high measurement accuracy, so that comparative measurements between the various LPBF influencing factors to be tested are possible. In summary, the series of measurements show that the residual porosity of the components has the greatest influence on conductivity. The degradation of the powder due to increased recycling also appears to be detectable. The build-up direction shows no detectable effect in the measurement series.
Das Diskussionspapier beschreibt einen Prozess an der FH Aachen zur Entwicklung und Implementierung eines Self-Assessment-Tools für Studiengänge. Dieser Prozess zielte darauf ab, die Relevanz der Themen Digitalisierung, Internationalisierung und Nachhaltigkeit in Studiengängen zu stärken. Durch Workshops und kollaborative Entwicklung mit Studiendekan:innen entstand ein Fragebogen, der zur Reflexion und strategischen Weiterentwicklung der Studiengänge dient.
Diese Bachelorarbeit befasst sich mit der digitalen Nachbildung eines Testgeländes sowie eines Schienenfahrzeugs in der Simulationsumgebung Gazebo. Der Schwerpunkt liegt auf der präzisen Abbildung der Umfeldsensorik anhand eines realen Schienenfahrzeuges. Ziel ist die Erzeugung äquivalenter Messdaten der Simulationsumgebung und des realen Schienenfahrzeuges unter gleichen Einsatzbedingungen. Dazu werden unterschiedliche Verfahren eingesetzt, um die Parameter der einzelnen Sensorik so zu konfigurieren, dass die Messergebnisse mit den Messdaten der realen Sensorik konvergieren.
Die Ergebnisse der Messdaten zeigen, dass obwohl die Simulationsumgebung einige physikalische Materialeigenschaften nicht berücksichtigt, eine präzise Abbildung der Sensorik und geometrischen Strukturen des Testgeländes möglich ist. Darüber hinaus ermöglicht die Kombination von Gazebo und ROS2 Integrationstests und die Entwicklung von Softwareanwendungen sowohl in der Simulation als auch auf dem realen Schienenfahrzeug. Eine realitätsnahe und reproduzierbare Auswertung der Sensormessdaten der Simulationsumgebung für Schienenfahrzeuge ist somit realisierbar.
In times of short product life cycles, additive manufacturing and rapid tooling are important methods to make tool development and manufacturing more efficient. High-performance polymers are the key to mold production for prototypes and small series. However, the high temperatures during vulcanization injection molding cause thermal aging and can impair service life. The extent to which the thermal stress over the entire process chain stresses the material and whether it leads to irreversible material aging is evaluated. To this end, a mold made of PEEK is fabricated using fused filament fabrication and examined for its potential application. The mold is heated to 200 ◦C, filled with rubber, and cured. A differential scanning calorimetry analysis of each process step illustrates the crystallization behavior and first indicates the material resistance. It shows distinct cold crystallization regions at a build chamber temperature of 90 ◦C. At an ambient temperature above Tg, crystallization of 30% is achieved, and cold crystallization no longer occurs. Additional tensile tests show a decrease in tensile strength after ten days of thermal aging. The steady decrease in recrystallization temperature indicates degradation of the additives. However, the tensile tests reveal steady embrittlement of the material due to increasing crosslinking.
Manufacturing companies across multiple industries face an increasingly dynamic and unpredictable environment. This development can be seen on both the market and supply side. To respond to these challenges, manufacturing companies must implement smart manufacturing systems and become more flexible and agile. The flexibility in operational planning regarding the scheduling and sequencing of customer orders needs to be increased and new structures must be implemented in manufacturing systems’ fundamental design as they constitute much of the operational flexibility available. To this end, smart and more flexible solutions for production planning and control (PPC) are developed. However, scheduling or sequencing is often only considered isolated in a predefined stable environment. Moreover, their orientation on the fundamental logic of the existing IT solutions and their applicability in a dynamic environment is limited. This paper presents a conceptual model for a task-based description logic that can be applied to factory planning, technology planning, and operational control. By using service-oriented architectures, the goal is to generate smart manufacturing systems. The logic is designed to allow for easy and automated maintenance. It is compatible with the existing resource and process allocation logic across operational and strategic factory and production planning.
Traditional vulcanization mold manufacturing is complex, costly, and under pressure due to shorter product lifecycles and diverse variations. Additive manufacturing using Fused Filament Fabrication and high-performance polymers like PEEK offer a promising future in this industry. This study assesses the compressive strength of various infill structures (honeycomb, grid, triangle, cubic, and gyroid) when considering two distinct build directions (Z, XY) to enhance PEEK’s economic and resource efficiency in rapid tooling. A comparison with PETG samples shows the behavior of the infill strategies. Additionally, a proof of concept illustrates the application of a PEEK mold in vulcanization. A peak compressive strength of 135.6 MPa was attained in specimens that were 100% solid and subjected to thermal post-treatment. This corresponds to a 20% strength improvement in the Z direction. In terms of time and mechanical properties, the anisotropic grid and isotropic cubic infill have emerged for use in rapid tooling. Furthermore, the study highlights that reducing the layer thickness from 0.15 mm to 0.1 mm can result in a 15% strength increase. The study unveils the successful utilization of a room-temperature FFF-printed PEEK mold in vulcanization injection molding. The parameters and infill strategies identified in this research enable the resource-efficient FFF printing of PEEK without compromising its strength properties. Using PEEK in rapid tooling allows a cost reduction of up to 70% in tool production.
The first and last mile of a railway journey, in both freight and transit applications, constitutes a high effort and is either non-productive (e.g. in the case of depot operations) or highly inefficient (e.g. in industrial railways). These parts are typically managed on-sight, i.e. with no signalling and train protection systems ensuring the freedom of movement. This is possible due to the rather short braking distances of individual vehicles and shunting consists. The present article analyses the braking behaviour of such shunting units. For this purpose, a dedicated model is developed. It is calibrated on published results of brake tests and validated against a high-definition model for low-speed applications. Based on this model, multiple simulations are executed to obtain a Monte Carlo simulation of the resulting braking distances. Based on the distribution properties and established safety levels, the risk of exceeding certain braking distances is evaluated and maximum braking distances are derived. Together with certain parameters of the system, these can serve in the design and safety assessment of driver assistance systems and automation of these processes.
Industrie 4.0 stellt viele Herausforderungen an produzierende Unternehmen und ihre Beschäf-tigten. Innovative und effektive Trainingsstrategien sind erforderlich, um mit den sich schnell verändernden Produktionsumgebungen und neuen Fertigungstechnologien Schritt halten zu können. Virtual Reality (VR) bietet neue Möglichkeiten für On-the-Job, On-Demand- und Off-Premise-Schulungen. Diese Arbeit stellt ein neues VR Schulungssystem vor, welches sich flexible an unterschiedliche Trainingsobjekte auf Grundlage von Rezepten und CAD Modellen anpassen lässt. Das Konzept basiert auf gerichteten azyklischen Graphen und einem Level-system. Es ermöglicht eine benutzerindividuelle Lerngeschwindigkeit mittels visueller Ele-mente. Das Konzept wurde für einen mechanischen Anwendungsfall mit Industriekomponen-ten implementiert und in der Industrie 4.0-Modellfabrik der FH Aachen umgesetzt.
Digital twins are seen as one of the key technologies of Industry 4.0. Although many research groups focus on digital twins and create meaningful outputs, the technology has not yet reached a broad application in the industry. The main reasons for this imbalance are the complexity of the topic, the lack of specialists, and the unawareness of the twin opportunities. The project "Digital Twin Academy" aims to overcome these barriers by focusing on three actions: Building a digital twin community for discussion and exchange, offering multi-stage training for various knowledge levels, and implementing realworld use cases for deeper insights and guidance. In this work, we focus on creating a flexible learning platform that allows the user to select a training path adjusted to personal knowledge and needs. Therefore, a mix of basic and advanced modules is created and expanded by individual feedback options. The usage of personas supports the selection of the appropriate modules.
The development of protype applications with sensors and actuators in the automation industry requires tools that are independent of manufacturer, and are flexible enough to be modified or extended for any specific requirements. Currently, developing prototypes with industrial sensors and actuators is not straightforward. First of all, the exchange of information depends on the industrial protocol that these devices have. Second, a specific configuration and installation is done based on the hardware that is used, such as automation controllers or industrial gateways. This means that the development for a specific industrial protocol, highly depends on the hardware and the software that vendors provide. In this work we propose a rapid-prototyping framework based on Arduino to solve this problem. For this project we have focused to work with the IO-Link protocol. The framework consists of an Arduino shield that acts as the physical layer, and a software that implements the IO-Link Master protocol. The main advantage of such framework is that an application with industrial devices can be rapid-prototyped with ease as its vendor independent, open-source and can be ported easily to other Arduino compatible boards. In comparison, a typical approach requires proprietary hardware, is not easy to port to another system and is closed-source.