Refine
Year of publication
Institute
- Fachbereich Maschinenbau und Mechatronik (279) (remove)
Language
- English (279) (remove)
Document Type
- Article (148)
- Conference Proceeding (107)
- Book (8)
- Part of a Book (8)
- Lecture (3)
- Bachelor Thesis (1)
- Contribution to a Periodical (1)
- Doctoral Thesis (1)
- Master's Thesis (1)
- Report (1)
Keywords
- Additive manufacturing (4)
- Gamification (4)
- additive manufacturing (3)
- Actuators (2)
- Additive Manufacturing (2)
- Aktor (2)
- Aktoren (2)
- Brake set-up (2)
- Digital Twin (2)
- Freight rail (2)
- IO-Link (2)
- L-PBF (2)
- LPBF (2)
- Microfabrication (2)
- Rapid Prototyping (2)
- Rapid prototyping (2)
- SLM (2)
- Sensor (2)
- Sensoren (2)
- Sensores (2)
- factory planning (2)
- fused filament fabrication (2)
- manufacturing flexibility (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)
- Adaptive Systems (1)
- Arduino (1)
- Assembly (1)
- Assessment (1)
- Asset Administration Shell (1)
- Augmented Reality (1)
- Balanced hypergraph (1)
- Binder Jetting (1)
- Bluetooth (1)
- Brake test (1)
- Braking curves (1)
- Business Simulations (1)
- Collaborative robot (1)
- Digital Twins (1)
- Digital manufacturing (1)
- Directed Energy Deposition (1)
- Distributed Control Systems, (1)
- Driver assistance system (1)
- Duality (1)
- Effective modal mass (1)
- Error Recovery (1)
- Ethernet (1)
- Eutectic Silver Copper alloy (1)
- Field device (1)
- Glass powder (1)
- Hall’s Theorem (1)
- Hand-on-training (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)
- Knowledge Transfer (1)
- Koenig’s Theorem (1)
- Laser processing (1)
- Laser-Powder Bed Fusion (1)
- Level system (1)
- MEMS ; education and training foundry (1)
- MST (1)
- Matching (1)
- Melting (1)
- Mikrosystemtechnik (1)
- Multi-agent Systems (1)
- Natural frequency (1)
- PROFINET (1)
- Path planning (1)
- Porositat (1)
- Powder Material (1)
- Rapid Technologie (1)
- Rapid manufacturing (1)
- Rapid-prototyping (1)
- Response Surface Method (1)
- SOA (1)
- Safety concept (1)
- Sensors (1)
- Serious Games (1)
- Shunting (1)
- Support System (1)
- Suspension bridge (1)
- Technologietransfer (1)
- Thermal conductivity (1)
- Thin shell finite elements (1)
- Train composition (1)
- Training (1)
- User study (1)
- VM (1)
- Vertex cover (1)
- Virtual Technology Lab (1)
- Virtual reality (1)
- Virtuelle Maschine (1)
- Virtuelles Labor (1)
- Virtuelles Laboratorium (1)
- Wireless Networks (1)
- Workspace monitoring (1)
- adaptive systems (1)
- additive manufactureing (1)
- assistance system (1)
- autonomous navigation (1)
- compression behavior (1)
- crystallization (1)
- cyber-physical production systems (1)
- digital factory (1)
- event-based simulation (1)
- gamification (1)
- glass (1)
- industrial agents (1)
- infill strategy (1)
- large-scale inspection (1)
- laser based powder fusion (1)
- manufacturing (1)
- manufacturing data model (1)
- mix flexibility (1)
- mobile manipulation (1)
- multi-agent systems (1)
- polyetheretherketone (1)
- polyetheretherketone (PEEK) (1)
- production planning and control (1)
- service-oriented architectures (1)
- surface-orthogonal path planning (1)
- technology diffusion (1)
- technology planning (1)
- technology transfer (1)
- virtual clean room (1)
- volume flexibility (1)
- wind turbine production (1)
Unsteady flow measurements in the wake behind a wind-tunnel car model by using high-speed planar PIV
(2015)
This study investigates unsteady characteristics of the wake behind a 28%-scale car model in a wind tunnel using highspeed planar particle image velocimetry (PIV). The car model is based on a hatchback passenger car that is known to have relatively high fluctuations in its aerodynamic loads. This study primarily focuses on the lateral motion of the flow on the horizontal plane to determine the effect of the flow motion on the straight-line stability and the initial steering response of the actual car on a track. This paper first compares the flow fields in the wake behind the above mentioned model obtained using conventional and high-speed planar PIV, with sampling frequencies of 8 Hz and 1 kHz, respectively. Large asymmetrically coherent flow structures, which fluctuate at frequencies below 2 Hz, are observed in the results of highspeed PIV measurements, whereas conventional PIV is unable to capture these features of the flow owing to aliasing. This flow pattern with a laterally swaying motion is represented by opposite signs of cross-correlation coefficients of streamwise velocity fluctuations for the two sides of the car model. Effects of two aerodynamic devices that are known to reduce the
fluctuation levels of the aerodynamic loads are then extensively investigated. The correlation analyses reveal that these devices indeed reduce the fluctuation levels of the flow and the correlation values around the rear combination-lamp, but it is found that the effects of these devices are different around the c-pillar.
Analysis of Big Data Streams to obtain Braking Reliability Information for Train Protection systems
(2017)
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.