Eldorado - Repositorium der TU Dortmund

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Bei diesem Service handelt es sich um das Institutionelle Repositorium der Technischen Universität Dortmund. Hier werden Ressourcen aus und für Lehre, Studium und Forschung gespeichert, erschlossen und der Öffentlichkeit zugänglich gemacht.

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Aktuellste Veröffentlichungen

The emergence of interdisciplinary structures in academic project settings
(2026) Rose, Anna-Lena; Leišytė, Liudvika; Wilkesmann, Uwe
This dissertation examines how interdisciplinary structures emerge within academic project settings at universities. Although interdisciplinarity has become increasingly important in higher education and is strongly promoted by policy makers and university leaders, academic disciplines continue to dominate university structures. Existing research has mainly focused on barriers to interdisciplinarity or on formally established interdisciplinary initiatives, leaving limited understanding of how interdisciplinarity develops within traditionally disciplinary environments. This study addresses that gap by exploring how and why interdisciplinary structures can successfully emerge within academic project settings. It investigates the broader question of how new structures emerge across traditional disciplinary boundaries in universities. Three sub-questions guide the analysis: (1) What kinds of interdisciplinary structures emerge in academic project settings and which actors participate in them? (2) How do these actors contribute to the emergence of interdisciplinary structures and what motivates them? (3) Which factors inhibit or facilitate the emergence of interdisciplinary structures? These questions are addressed based on a longitudinal ethnographic single-case study of a project for inclusion-oriented and inclusive teacher training at a German university. Data were collected through participatory observation, focus groups discussions, interviews, and analysis of documents and websites. Data analysis followed principles of constructivist grounded theory and was complemented by a social network analysis of co-publications. Findings show that interdisciplinary structures develop as a dynamic social process shaped by both structural conditions and collective agency. Different forms of interdisciplinary collaboration emerged, varying in focus, organisation, and participants’ understandings of interdisciplinarity. The dissertation proposes a typology of interdisciplinary actors, distinguishing routine actors, sense-making actors, and two kinds of strategic actors – pure interdisciplinarians and pragmatic interdisciplinarians - who actively promote interdisciplinarity, yet grounded in different motivations. Key barriers included epistemic differences and the discipline-based organisation of universities. Important facilitating factors were organisational support, flexible interdisciplinary formats, and protection from traditional university structures. The study further highlights the role of temporary project settings in making disciplinary boundaries more permeable and enabling organisational change.
Peer Helping am Ganztagsgymnasium in NRW.
(2026) Wehe, Inga; Beutel, Silvia-Iris; Stebner, Ferdinand
Die vorliegende Dissertation untersucht das Potenzial von Peer Helping zur Förderung der Lernmotivation in Selbstlernzeiten am Ganztagsgymnasium. Vor dem Hintergrund gesellschaftlicher Veränderungen, wachsender Heterogenität und der Weiterentwicklung gymnasialer Lehr- und Lernkulturen wird der Frage nachgegangen, wie Individuelle Förderung und gemeinschaftsorientiertes Lernen in ganztägigen Strukturen miteinander verbunden werden können. Im Fokus steht das sogenannte Markt-Modell des Peer Helpings, in dem Schüler*innen eigenverantwortlich die Rollen von Helfenden und Hilfeempfangenden übernehmen und ihre Lernprozesse kooperativ gestalten. Die theoretische Grundlage bildet die Selbstbestimmungstheorie von Deci und Ryan, die motiviertes Lernen durch die Befriedigung der Grundbedürfnisse nach Autonomie, Kompetenz und sozialer Eingebundenheit erklärt. Die Studie ist als Mixed-Methods-Untersuchung mit Schüler*innen der Jahrgangsstufe 5 an Ganztagsgymnasien in Nordrhein-Westfalen angelegt. Sie umfasst zwei quantitative Teilstudien mit Prä-Post-Design, in denen die situative bzw. die allgemeine Lernmotivation mithilfe standardisierter Skalen erhoben wurden, sowie eine qualitative Interviewstudie. Für die qualitative Untersuchung wurde ein Analysemodell entwickelt, das die Strukturmerkmale des Peer Helpings im Markt-Modell mit den motivationalen Grundbedürfnissen der Selbstbestimmungstheorie verbindet. Die Ergebnisse zeigen, dass Peer Helping im unmittelbaren Lernkontext motivationsförderlich wirkt. Insbesondere das Erhalten von Unterstützung geht mit einer höheren situativen Lernmotivation einher. Die qualitativen Befunde verdeutlichen darüber hinaus die Bedeutung von Kompetenzerleben, Anerkennung, Autonomie und Zugehörigkeit für die motivationalen Erfahrungen der Lernenden. Langfristige Effekte auf die allgemeine Lernmotivation konnten hingegen nicht nachgewiesen werden. Die Arbeit leistet einen Beitrag zur Ganztagsschulforschung, zur Anwendung der Selbstbestimmungstheorie im Kontext peer-gestützten Lernens sowie zur Diskussion einer zukunftsorientierten gymnasialen Lehr- und Lernkultur. Die Ergebnisse verdeutlichen, dass Peer Helping ein vielversprechender Ansatz ist, um Motivation, Verantwortung und Gemeinschaft im schulischen Lernen miteinander zu verbinden.
Defining and assessing part complexity
(2026) Tjaden, Greta Tjadea; Meyer, Anne; Henke, Michael
Companies require information about their customers to maintain an attractive portfolio of products and services. This information is essential in different departments for a variety of tasks along the product life cycle. By providing this information based on data, decision-making processes can lead to more accurate outcomes and improved overall results. This thesis explores part complexity and its relevance in better understanding customer needs throughout the product lifecycle. The industry partner of and example used in this dissertation is TRUMPF, a German machinery and plant engineering company that builds machine tools for the sheet metal processing industry. Sheet metal processing contains process steps such as laser cutting, bending, and welding to manufacture sheet metal parts. The application possibilities are manifold, with use cases in industries such as automotive, construction, renewable energy, aerospace, and many more. Many researchers agree that part complexity represents the manufacturability of a part. However, we identify three major research gaps in this field: (1), there is no consensus regarding the research method of assessing part complexity but co-existing methods differ in how they investigate part complexity. (2), the part complexity influencing part characteristics have not been thoroughly researched, even less for our field of research, sheet metal processing. (3), only two part complexity use cases have been identified in the literature, despite the increasing demand for data-based information along the product life cycle. This thesis addresses these three research gaps with these contributions: (1), we develop a methodology for assessing part complexity and demonstrate its applicability by putting this research approach into practice. This methodology combines both qualitative and quantitative methods. (2), we conduct a computer-assisted self-assessment to let experts label the complexity of 80 parts. To facilitate this self-assessment, we develop a labelling tool that implements a visualization of the parts and provides additional part information. For complexity labeling, we implement a Likert scale ranging from 1 (least complex) to 5 (most complex), deliberately omitting the middle option “3” to encourage more definitive responses. Participants are also required to provide a written explanation for their chosen complexity rating. The participants of the computer-assisted self-interview are experts for the production unit that we chose as an example for our research endeavor. Furthermore, as an evaluation mechanism, we repeat a subset of 10 parts in each of the three weeks of the complexity labeling to assess the consistency of the participants’ labeling over time. Second, we observe a consensus of the labeling participants in some of the repeating geometries and a clear correlation between distinct part characteristics and the reasons given for the assigned complexity ratings. (3), we identify part complexity influencing part characteristics based on the results of the aforementioned research approach. (4), by conducting a focus group, we explore the application possibilities of part complexity for the three main stakeholder groups: product and portfolio management, research and development, and sales and consulting. These results add to the two use cases of part complexity that have already been identified in the literature and demonstrate the usefulness of part complexity as a contributor to data-based customer information along the product life cycle.
Amtliche Mitteilungen der Technischen Universität Dortmund Nr. 15/2026
(Technische Universität Dortmund, 2026-06-19)
Promoting structural sustainable design through the influence of quality control assessments
(2026-03-06) Lux, Til; Feiri, Tânia; Schulze-Ardey, Jan Philip; Hegger, Josef; Claßen, Martin; Ricker, Marcus
In structural reliability assessments, the selection of suitable parameters for the definition of stochastic models of component properties—such as concrete compressive strength, steel yield strength or geometric dimensions—is a prime requirement. Typically, during the production of structural components, several conformity control criteria, which are part of quality control assessments, are adopted to evaluate whether their properties comply with specified requirements. Previous investigations have demonstrated that the consideration of conformity control assessments in reliability studies might have a positive influence on the structural reliability of a component, thereby, enabling more material and resource efficient designs than conventional designs that do not take conformity control into account. In this investigation, a methodology grounded on the principles of reliability theory and Bayesian statistics is offered to quantify the positive effects of conformity control assessments in structural reliability levels. The practical application of this methodology is further demonstrated through an example extracted from previous investigations concerning the reliability level of a short concrete column subjected to compression. The results suggest that existing safety margins can be activated to adjust partial safety factors on the resistance side and, thus, optimise design solutions. Finally, possible improvements for the overall methodology are identified, opening avenues for the design of more sustainable structures.