15 Fakultätsübergreifend / Sonstige Einrichtung
Permanent URI for this collectionhttps://elib.uni-stuttgart.de/handle/11682/16
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Item Open Access Philosophy of action and Its relationship to interactive visualisation and Molière’s theatre(2023) Feige, Daniel M.; Weiskopf, Daniel; Dickhaut, KirstenItem Open Access Real-world experiments under observation(Stuttgart : Reallabor für nachhaltige Mobilitätskultur - Future City Lab, 2021) Lindner, Doris; Alle, Katrin; Tarrant, Andy (Übersetzer); Grehl, Heide (Lektorin)What transformative potential arises from the three real-world experiments of the STADTREGAL, HOW DO YOU ROLL? and the STUTTGARTER LUFTBAHN? Using empirical data and results, we consider whether ... ... the STADTREGAL triggered an exchange between social groups? ... HOW DO YOU ROLL? showed that sustainable mobility is fun? ... the STUTTGARTER LUFTBAHN inspired people to think differently about mobility?Item Open Access Strategische Themen der digitalen Transformation administrativer Prozesse an den Universitäten in Baden-Württemberg - eine kooperative Umsetzung(2021) Gerken, Jan; Hätscher, Petra; Krolopp, Heidi; Nußbaumer, Martin; Peter, Christine; Pfister, Alexander; Rehm, Simone; Rottenecker, Jürgen; Scheffer, Katrin; Schenek, Matthias; Schneider, Gerhardt; Tegelears, Miriam; Walter, Thomas; Wesner, Stefan; Windscheid, Barbara; Winter, Julia; Bohr, IngridDie Universitäten sind insgesamt im Hinblick auf die Digitalisierung ihrer Dienstleistungen bereits fortgeschritten. Hier sind insbesondere die Felder Forschung, Lehre und die administrativen Prozesse der Universitäten für Studierende positiv hervorzuheben, in denen die Landesuniversitäten auch durch Nutzung von Kooperationen bereits wichtige Ergebnisse erzielt haben. Es besteht aber weiter ein großer Handlungsbedarf insbesondere in der weiteren Digitalisierung administrativer Prozesse an den Universitäten, um den Anforderungen der Forscherinnen und Forscher, der Studierenden, der Promovierenden, der Lehrenden, des administrativen Personals und nicht zuletzt auch den Erwartungen an einen zeitgemäßen Arbeitsplatz zu entsprechen. Um die Digitale Transformation der administrativen Prozesse auf Landesebene strategisch weiterzuentwickeln, werden in diesem Papier die fünf drängendsten Themenfelder der digitalen Transformation administrativer Prozesse beschrieben. Die hier beschriebenen Themenfelder verstehen sich vollständig als Teil der Dachstrategie der Landesrektorenkonferenz, die in „Baden-Württemberg 2021-26: Digitale Zukunft der Wissenschaft gestalten“ beschrieben wurden.Item Open Access Advances in additive friction extrusion deposition (AFED) : process and tool design(2024) Hossfeld, Max; Wright, ArnoldAdditive friction extrusion deposition (AFED) is a recently developed additive manufacturing technique that promises high deposition rates at low forces. Due to the novelty of the process, the underlying phenomena and their interactions are not fully understood, and in particular, the processing strategy and tool design are still in their infancy. This work contributes to the state-of-the-art of AFED through a comprehensive analysis of its working principles and an experimental program, including a representative sample component. The working principle and process mechanics of AFED are broken down into their individual components. The forces and their origins and effects on the process are described, and measures of process efficiency and theoretical minimum energy consumption are derived. Three geometrical features of the extrusion die were identified as most relevant to the active material flow, process forces, and deposition quality: the topography of the inner and outer circular surfaces and the geometry of its extrusion channels. Based on this, the experimental program investigated seven different tool designs in terms of efficiency, force reduction, and throughput. The experiments using AA 6061-T6 as feedstock show that AFED is capable of both high material throughput (close to 550 mm3/s) and reduced substrate forces, for example, the forces for a run at 100 mm3/s remained continuously below 500 N and for a run at 400 mm3/s below 3500 N. The material flow and microstructure of AFED were assessed from macro-sections. Significant differences were found between the advancing and retracting sides for both process effects and material flow. Banded structures in the microstructure show strong similarities to other solid-state processes. The manufacturing of the sample components demonstrates that AFED is already capable of producing industrial-grade components. In mechanical tests, interlayer bonding defects resulted in more brittle failure behavior in the build direction of the structure, whereas in the horizontal direction, mechanical properties corresponding to a T4 temper were achieved.Item Open Access Digitalisierungsbezogene Kompetenzen von Lehramtsstudierenden im Kontext pädagogisch-didaktischen Makings : theoretische Grundlagen(Stuttgart ; Ludwigsburg : Professional School of Education Stuttgart-Ludwigsburg, 2022) Brändle, Marcus; Schmidt, Jennifer; Balcik, Tülay; Gollnau, Nikodemus; Wilcke, Claus; Gentemann, Anna-Lena; Bescherer, Christine; Sälzer, Christine; Schaal, Steffen; Zinn, BerndDas Projekt MakEd_digital zielt auf die Entwicklung digitalisierungsbezogener Kompetenzen von angehenden Lehrpersonen zur Nutzung, Entwicklung und Reflexion digitaler Medien und Werkzeuge in Lehr-/Lernkontexten ab. Dabei bilden unterschiedliche theoretische Modelle Basis und Bezugsperspektiven für die wissenschaftliche Konkretisierung und Validierung des hier angewandten Kompetenzbegriffes (nach Weinert, 2001). Diese Modellvielfalt ergibt sich zwingend aus den mehrfachen Bezugsdimensionen des Projekts, das wissenschaftliche Reflexion in der Hochschullehre, den Betrieb verschiedener pädagogisch-didaktischer Makerspaces sowie den Aufbau einer Maker-orientierten Community über Fachgrenzen hinweg umfasst. Der Artikel beschreibt diese Theorien und ihr Zusammenspiel im Sinne des Gedankens von (medien-)pädagogischem Making.Item Open Access Detection of wind evolution and lidar trajectory optimization for lidar-assisted wind turbine control(2015) Schlipf, David; Haizmann, Florian; Cosack, Nicolai; Siebers, Tom; Cheng, Po WenIn this work a collective pitch feedforward controller for floating wind turbines is presented. The feedforward controller provides a pitch rate update to a conventional feedback controller based on a wind speed preview. The controller is designed similar to the one for onshore turbines, which has proven its capability to improve wind turbine control performance in field tests. In a first design step, perfect wind preview and a calm sea is assumed. Under these assumptions the feedforward controller is able to compensate almost perfectly the effect of changing wind speed to the rotor speed of a full nonlinear model over the entire full load region. In a second step, a nacelle-based lidar is simulated scanning the same wind field which is used also for the aero-hydro-servo-elastic simulation. With model-based wind field reconstruction methods, the rotor effective wind speed is estimated from the raw lidar data and is used in the feedforward controller after filtering out the uncorrelated frequencies. Simulation results show that even with a more realistic wind preview, the feedforward controller is able to significantly reduce rotor speed and power variations. Furthermore, structural loads on the tower, rotor shaft, and blades are decreased. A comparison to a theoretical investigation shows that the reduction in rotor speed regulation is close to the optimum.Item Open Access Digitalisierung der Unterschrift in Verwaltungsprozessen(2021) Bohr, Ingrid; Fuhrmeister, Ivonne; Hengel, Martin; Kuhrau, Stefan; Kurz, Daniela; Ptak, Joachim; Roll, Oliver; Schleimer, Toni; Schnell, Andreas; Spann, Christian; Weilguni, Claudia; Welte, RandolphIm Papier werden rechtliche Aspekte der Bedeutung von Unterschriften sowie technische Aspekte einer möglichen Umsetzung von digitalen Unterschriften betrachtet. Anhand von drei unterschiedlichen Prozessen - Urlaubsantrag, Bewerbung und Immatrikulation sowie Beschaffung - wendet das White-Paper die Erkenntnisse der allgemeinen Betrachtung auf konkrete Vorgänge an. Aus dem White-Paper können konkrete Digitalisierungsprojekte der administrativen Prozesse der Hochschulen abgeleitet und die Mitarbeiterinnen und Mitarbeiter der Universitäten können es als Arbeitsgrundlage nutzen.Item Open Access Praktischer Städtebau & Provisorische Architektur - Transformation aktiv gestalten(Stuttgart : Reallabor für nachhaltige Mobilitätskultur - Future City Lab, 2020) Baum, Martina; Klawiter, Sebastian; Noller, Hanna; Klawiter, Sebastian; Noller, Hanna; Grehl, HeideWie können wir Transformation aktiv gestalten? Wie wollen wir in Zukunft forschen und lernen? Wie ermöglichen wir Freiräume im Ausbildungsalltag von Gestalter*innen? Welche Chancen eröffnet Lehre außerhalb akademischer Räume? Was sind die kommenden Herausforderungen? Und wie erkennen wir sie? Wie vermitteln wir Lernenden, mehr dimensionale Gedankengebilde zu erzeugen? Und wie lassen sich diese Fragestellungen verräumlichen?Item Open Access Inter- and transdisciplinary teaching and learning within the Reallabor(Stuttgart : Reallabor für nachhaltige Mobilitätskultur - Future City Lab, 2021) Pfau, Natalia; Uhl, Elke; Tarrant, Andy (Übersetzer); Grehl, Heide (Lektorin)The Reallabor (real-world laboratory) offered a space for testing new forms of university learning and teaching. The goal was to develop, apply, and assess innovative teaching formats within the field of “sustainable mobility culture”. Models of learning via researching were tested: cross-disciplinary, inter- and transdisciplinary, action oriented, explorative, cooperative, and participatory. They provided knowledge on systems, goals, and transformations and allowed participants to gain expertise as well as methods and communications skills.Item Open Access Comparison of Taguchi Method and Robust Design Optimization (RDO) : by application of a functional adaptive simulation model for the robust product-optimization of an adjuster unit(2015) Kemmler, Stefan; Fuchs, Alexander; Leopold, Tobias; Bertsche, BerndCurrent research and development have been trending towards approaches based on simulation and virtual testing. Industrial development processes for complex products employ optimization methods to ensure results are close to reality, simultaneously minimizing required resources. The results of virtual testing are optimized in accordance with requirements using optimization techniques. Robust Design Optimization (RDO) is one established approach to optimization. RDO is based on the identification of an optimal parameter set which includes a small variance of the target value as a constraint. Under most circumstances, this approach does not involve separate optimization of the target value and target variance. However, the basic strategy of the optimization approach developed by Taguchi is to first optimize the parameter sets for the target value and then optimize and minimize the target variance. According to an application example , the benefit of Taguchi's approach (TM) is that it facilitates the identification of an optimal parameter set of nominal values for technical feasibility and possible manufacturing. If an optimal parameter set is determined, the variance can be minimized under consideration of process parameters. This paper examines and discusses the differences between and shared characteristics of the robust optimization methods TM and RDO, and discusses their shortcomings. In order to provide a better illustration, this paper explains and applies both methods using an adjuster unit of a commercial vehicle braking system. A simulation model is developed including an appropriate work ow by applying optiSLang-modules.