TY - CHAP A1 - Otten, Christian A1 - Gerhards, Benjamin A1 - Schleser, Markus A1 - Schwarz, A. A1 - Gebhardt, Andreas T1 - Innovative Laserschweißtechnologie für additiv gefertigte Bauteile T2 - Große Schweißtechnische Tagung Y1 - 2019 SN - 978-3-96144-066-5 N1 - DVS CONGRESS 2019, Große Schweißtechnische Tagung, DVS-Studentenkongress. 16. bis 17. September 2019, Düsseldorf. DVS-Berichte, Band 355 SP - 150 EP - 157 PB - DVS-Media CY - Düsseldorf ER - TY - CHAP A1 - Nakagawa, Masaki A1 - Michaux, Frank A1 - Kallweit, Stephan A1 - Maeda, Kazuhiro T1 - Unsteady flow measurements in the wake behind a wind-tunnel car model by using high-speed planar PIV T2 - 11TH International Symposium on Particle Image Velocimetry – PIV15 Santa Barbara, California, September 14-16, 2015 N2 - 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. Y1 - 2015 ER - TY - CHAP A1 - Nakagawa, Masaki A1 - Kallweit, Stephan A1 - Michaux, Frank A1 - Hojo, Teppei T1 - Typical Velocity Fields and Vortical Structures around a Formula One Car, based on Experimental Investigations using Particle Image Velocimetry T2 - SAE International Journal of Passenger Cars - Mechanical Systems Y1 - 2016 U6 - http://dx.doi.org/10.4271/2016-01-1611 SN - 1946-4002 ER - TY - CHAP A1 - Moshiri-Kahak, Amir A1 - Pfaff, Raphael A1 - Gäbel, Markus A1 - Reich, Alexander T1 - Modellierung der Adhäsionsfläche im Rad-Schiene-Kontakt unter Einsatz von reibwertverbessernden Mitteln T2 - 15. Internationale Schienenfahrzeugtagung Rad Schiene 2017, Dresden, März 2017 Y1 - 2017 N1 - Internationale Schienenfahrzeugtagung <15., 2017, Dresden> ER - TY - CHAP A1 - Merten, Sabine A1 - Kämper, Klaus-Peter A1 - Brill, Manfred A1 - Picard, Antoni A1 - Cassel, Detlev A1 - Jentsch, Andreas A1 - Rollwa, Markus T1 - Virtuelle Sensor-Fertigung: Hightech mit LabVIEW N2 - Eine neue Generation von Praktika an Hochschulen wächst heran. Moderne Wege beim Verstehen und Erlernen naturwissenschaftlicher Zusammenhänge sowie industrieller Fertigungsprozesse sind gefordert. Das Technologiepraktikum „Virtuelle Sensor- Fertigung“, entwickelt im Verbundprojekt INGMEDIA an den Fachhochschulen Aachen und Zweibrücken, trägt als neuartiges Lern- und Lehrmodul dieser Forderung Rechnung. Die Studierenden lernen einen vollständigen Fertigungsprozess mit Hilfe von virtuellen, in LabVIEW programmierten Maschinen kennen, bevor sie die reale Prozesskette im Reinraum durchführen. N2 - A new generation of university laboratory courses is presently being developed. Modern concepts for the understanding and learning of applied science and industrial fabrication processes are required. The technology course “Fabrication of a microsensor”, developed by the Universities of Applied Sciences Aachen and Zweibrücken in the joint research project INGMEDIA, represents a new approach towards education in high technology production. The students learn the operation of the complex microfabrication line with the help of virtual fabrication machines, programmed in LabVIEW, before they perform the actual process in a genuine clean room. KW - LabVIEW KW - Virtuelle Sensor-Fertigung KW - Fertigungsprozess KW - virtuelle Maschinen KW - virtual sensor fabrication KW - manufacturing process KW - virtual KW - virtual machines Y1 - 2003 ER - TY - CHAP A1 - Merten, Sabine A1 - Conrad, Thorsten A1 - Kämper, Klaus-Peter A1 - Picard, Antoni A1 - Schütze, Andreas T1 - Virtual Technology Labs - an efficient tool for the preparation of hands-on-MEMS-courses in training foundries N2 - Hands-on-training in high technology areas is usually limited due to the high cost for lab infrastructure and equipment. One specific example is the field of MEMS, where investment and upkeep of clean rooms with microtechnology equipment is either financed by production or R&D projects greatly reducing the availability for education purposes. For efficient hands-on-courses a MEMS training foundry, currently used jointly by six higher education institutions, was established at FH Kaiserslautern. In a typical one week course, students manufacture a micromachined pressure sensor including all lithography, thin film and packaging steps. This compact and yet complete program is only possible because participants learn to use the different complex machines in advance via a Virtual Training Lab (VTL). In this paper we present the concept of the MEMS training foundry and the VTL preparation together with results from a scientific evaluation of the VTL over the last three years. KW - Virtuelles Laboratorium KW - Virtuelles Labor KW - Hand-on-training KW - Virtual Technology Lab KW - MEMS ; education and training foundry Y1 - 2006 ER - TY - CHAP A1 - Luft, Angela A1 - Gebhardt, Andreas A1 - Balc, Nicolae T1 - Challenges of additive manufacturing in production systems T2 - Modern technologies in manufacturing (MTeM 2019) Y1 - 2019 U6 - http://dx.doi.org/10.1051/matecconf/201929901003 N1 - MATEC Web of Conferences 299; MTeM 2019 VL - 299 IS - Article 01003 ER - TY - CHAP A1 - Leidinger, Rafael A1 - Schürmann, Volker A1 - Wollert, Jörg A1 - Schneider, Christoph T1 - Entwicklungsprojekt BASic - Bluetooth Authentication Service T2 - Wireless Technologies : 12. Kongress, 22. - 23. September 2010, Bochum ; von der Technologie zur Anwendung / Jörg F. Wollert (Hrsg.) (Fortschritt-Berichte VDI : Reihe 10, Informatik, Kommunikation ; 810) Y1 - 2010 SN - 978-3-18-381010-9 SP - 296 EP - 303 PB - VDI-Verl. CY - Düsseldorf ER - TY - CHAP A1 - König, Johannes Alexander A1 - Wolf, Martin T1 - A new definition of competence developing games - and a framework to assess them T2 - ACHI 2016 : The Ninth International Conference on Advances in Computer-Human Interactions N2 - There are different types of games that try to make use of the motivation of a gaming situation in learning contexts. This paper introduces the new terminology ‘Competence Developing Game’ (CDG) as an umbrella term for all games with this intention. Based on this new terminology, an assessment framework has been developed and validated in scope of an empirical study. Now, all different types of CDGs can be evaluated according to a defined and uniform set of assessment criteria and, thus, are comparable according to their characteristics and effectiveness. KW - Serious Games KW - Gamification KW - Business Simulations KW - Assessment Y1 - 2016 SN - 978-1-61208-468-8 N1 - Proceeding of the Ninth International Conference on Advances in Computer-Human Interactions (ACHI 2016), Venice. SP - 95 EP - 97 ER - TY - CHAP A1 - Kolkmann, Annette A1 - Gries, Thomas A1 - Schleser, Markus A1 - Dilthey, Ulrich T1 - Innovative yarn structures and coatings for textile reinforced concrete T2 - All lectures / Techtextil Symposium : 6. - 9. 6.2005, Frankfurt am Main Y1 - 2005 CY - Frankfurt a.M. ER -