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Workshop Formine 2015 mit Projekten von Antonia Zajgia, Arnoud Charoy, Laura Viktoria Koch, Kai Stein, Ferdinand Klopfer, Florian D. Heinz, Tobias Scholz, Moritz Gnädinger, Pablo Raphael, Franko Scheuplein, Thomas Tünnemann, René Großner, Anny Phung, Mylenne Jakob-Wendel, Kira Joerißen, Florian Erber, Julian Wesse und Isolde Nagel
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.
Mechatronics consist of the integration of mechanical
engineering, electronic integration and computer science/
engineering. These broad fields are essential for robotic
systems, yet it makes it difficult for the researchers to specialize
and be experts in all these fields. Collaboration between
researchers allow for the integration of experience and specialization,
to allow optimized systems. Collaboration between the
European countries and South Africa is critical, as each country
has different resources available, which the other countries
might not have. Applications with the need for approval of
any restrictions, can also be obtained easier in some countries
compared to others, thus preventing the delays of research.
Some problems that have been experienced are discussed, with
the Robotics Center of South Africa as a possible solution.
A multi-functional device applying for the safe maintenance at high-altitude on wind turbines
(2015)
The main objective of our ROS Summer School series is to introduce MA level students to program mobile robots with the Robot Operating System (ROS). ROS is a robot middleware that is used my many research institutions world-wide. Therefore, many state-of-the-art algorithms of mobile robotics are available in ROS and can be deployed very easily. As a basic robot platform we deploy a 1/10 RC cart that is wquipped with an Arduino micro-controller to control the servo motors, and an embedded PC that runs ROS. In two weeks, participants get to learn the basics of mobile robotics hands-on. We describe our teaching concepts and our curriculum and report on the learning success of our students.
The Scarab Project
(2015)
Urban Search and Rescue (USAR) is an active research
field in the robotics community. Despite recent advances
for many open research questions, these kind of systems are
not widely used in real rescue missions. One reason is that such
systems are complex and not (yet) very reliable; another is that
one has to be an robotic expert to run such a system. Moreover,
available rescue robots are very expensive and the benefits of
using them are still limited.
In this paper, we present the Scarab robot, an alternative
design for a USAR robot. The robot is light weight, humanpackable
and its primary purpose is that of extending the
rescuer’s capability to sense the disaster site. The idea is that a
responder throws the robot to a certain spot. The robot survives
the impact with the ground and relays sensor data such as
camera images or thermal images to the responder’s hand-held
control unit from which the robot can be remotely controlled.
Inhalt
07 Der Stoff, aus dem die Träume sind | Modedesigner, Fotograf, Künstler : der FH-Absolvent Hans W. Krämer
12 Wurzeln, die tief zurückreichen | Die Handwerker- und Kunstgewerbeschule Aachen
18 Eine einmalige Chance | Der japanische Gastwissenschaftler Prof. Dr. Ko-ichiro Miyamoto forscht ein Jahr lang am Campus Jülich
22 Pionierarbeit auf leisen Sohlen | Vier junge Marokkanerinnen sind die ersten Absolventinnen des internationalen Studiengangs Angewandte Chemie
26 Gute Hacker - Böse Hacker| FH Aachen bietet Kurse zum ethischen Hacken an
28 Eiffelturm meets Kartenhaus | Architekturstudierende entwickeln ausgefuchstes Stecksystem für temporäre Architektur
32 Dom in 3-D | Fachbereich Bauingenieurwesen vermisst das Aachener Welterbe
36 "Müssen Behinderte denn Auto fahren?!" | FH-Absolventinnen gründen Fahrschule für Menschen mit Handicap
40 Im Innern des "Blutenden Gletschers" | Fünf Wochen lang lebten und arbeiteten FH-Ingenieure in der größten Eiswüste der Erde
46 Das ist mein Zuhause | Nach über 40 Jahren verlässt Prof. Dr. Horst Heinrichs die FH Aachen
50 Die Qual der Wahl | Mit dem "Guten Studienstart" ins Ingenieurstudium
52 Fachtutorenschulung an der FH Aachen
55 Zusammen wachsen | Neue Schnittstelle: Erste Studierende machen ihren Master in Energiewirtschafts-Informatik
56 Pro8 geht in die achte Runde | Studierende stellen sich Herausforderungen aus der Industrie
58 Auf die Messe, fertig, los! | Alumnus Moritz Christ gibt der Euregio Wirtschaftsschau ein neues Gesicht
61 Unsere EM wird 75: Die FH wünscht alles Gute!
61 Herzlichen Glückwunsch! Alt-Rektor Prof. Buchkremer wird 75
62 FH Aachen kooperiert mit Ford | Hannover Messe: FH präsentiert drei Projekte | FH Aachen ausgezeichnet : Zertifikat 2014 Vielfalt gestalten in NRW
63 Impressum
With autonomous mobile robots receiving increased
attention in industrial contexts, the need for benchmarks
becomes more and more an urgent matter. The RoboCup
Logistics League (RCLL) is one specific industry-inspired scenario
focusing on production logistics within a Smart Factory.
In this paper, we describe how the RCLL allows to assess the
performance of a group of robots within the scenario as a
whole, focusing specifically on the coordination and cooperation
strategies and the methods and components to achieve them.
We report on recent efforts to analyze performance of teams in
2014 to understand the implications of the current grading
scheme, and derived criteria and metrics for performance
assessment based on Key Performance Indicators (KPI) adapted
from classic factory evaluation. We reflect on differences and
compatibility towards RoCKIn, a recent major benchmarking
European project.
The Passivhaus building standard is a concept developed for the realization of energy-efficient and economical buildings with a simultaneous high utilization comfort under European climate conditions. Major elements of the Passivhaus concept are a high thermal insulation of the external walls, the use of heat and/or solar shading glazing as well as an airtight building envelope in combination with energy-efficient technical building installations and heating or cooling generators, such as an efficient energy-recovery in the building air-conditioning. The objective of this research project is the inquiry to determine the parameters or constraints under which the Passivhaus concept can be implemented under the arid climate conditions in the Arabian Peninsula to achieve an energy-efficient and economical building with high utilization comfort. In cooperation between the Qatar Green Building Council (QGBC), Barwa Real Estate (BRE) and Kahramaa the first Passivhaus was constructed in Qatar and on the Arabian Peninsula in 2013. The Solar-Institut Jülich of Aachen University of Applied Science supports the Qatar Green Building Council with a dynamic building and equipment simulation of the Passivhaus and the neighbouring reference building. This includes simulation studies with different component configurations for the building envelope and different control strategies for heating or cooling systems as well as the air conditioning of buildings to find an energetic-economical optimum. Part of these analyses is the evaluation of the energy efficiency of the used energy recovery system in the Passivhaus air-conditioning and identification of possible energy-saving effects by the use of a bypass function integrated in the heat exchanger. In this way it is expected that on an annual basis the complete electricity demand of the building can be covered by the roof-integrated PV generator.