TY - CONF
AU - Behler, Felix
ID - 44253
T2 - Somewhere In Between: Borders and Borderlands. Organisation: London Centre for Interdisciplinary Research
TI - Of Transgenerational Borders and Collective Trauma
ER -
TY - CONF
AU - Behler, Felix
ID - 44252
T2 - Faces of War International Conference. Organisation: London Centre for Interdisciplinary Research.
TI - Representations of Trauma in Contemporary British War Poetry
ER -
TY - CONF
AU - Behler, Felix
ID - 44257
T2 - BRITCULT 2021: Investigating the Super-Rich. Organisation: Professor Oliver v. Knebel Doeberitz, Dr. Jonatan Jalle Steller (University of Leipzig)
TI - In Between Cultural Heritage and ‘Playground’ for the Wealthy: The Evolution of the British Countryside
ER -
TY - GEN
ED - Behler, Felix
ED - Jende, Yvonne Kristin
ED - Büsken, Lisa-Marie
ED - Rasmussen, Cecilie
ID - 44263
TI - Bridges and Barriers, Interdisziplinäre studentische Konferenz
ER -
TY - CONF
AU - Göddecke, Johannes
AU - Meschut, Gerson
ID - 22264
T2 - 11. Doktorandenseminar Klebtechnik
TI - Experimentelle Untersuchung der Dämpfungseigenschaften geklebter Strukturen unter dynamischer Beanspruchung
ER -
TY - CHAP
AB - Self-piercing riveting is an established technique for joining multi-material structures in car body manufacturing. Rivets for self-piercing riveting differ in their geometry, the material used, the condition of the material and their surface condition. To shorten the manufacturing process by omitting the heat treatment and the coating process, the authors have elaborated a concept for the use of stainless steel with high strain hardening as a rivet material. The focus of the present investigation is on the evaluation of the influences of the rivet’s geometry and material on its deformation behaviour. Conventional rivets of types P and HD2, a rivet with an improved geometry made of treatable steel 38B2, and rivets made of the stainless steels 1.3815 and 1.4541 are examined. The analysis is conducted by means of multi-step joining tests for two material combinations comprising high-strength steel HCT70X and aluminium EN AW-5083. The joints are cut to provide a cross-section and the deformation behaviour of the different rivets is analysed on the basis of the measured changes in geometry and hardness. In parallel, an examination of the force-stroke curves provides further insights. It can be demonstrated that, besides the geometry, the material strength, in particular, has a significant influence on the deformation behaviour of the rivet. The strength of steel 1.4541 is seen to be too low for the joining task, while the strength of steel 1.3815 is sufficient, and hence the investigation confirms the capability of rivets made of 1.3815 for joining even challenging material combinations.
AU - Uhe, Benedikt
AU - Kuball, Clara-Maria
AU - Merklein, Marion
AU - Meschut, Gerson
ED - Daehn, Glenn
ED - Cao, Jian
ED - Kinsey, Brad
ED - Tekkaya, Erman
ED - Vivek, Anupam
ED - Yoshida, Yoshinori
ID - 22930
KW - Self-piercing riveting
KW - Lightweight design
KW - Deformation behaviour
KW - Stainless steel
KW - High nitrogen steel
T2 - Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals & Materials Series.
TI - Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening
ER -
TY - CONF
AB - The use of high-strength steel and aluminium is rising due to the intensified efforts being made in lightweight design, and self-piercing riveting is becoming increasingly important. Conventional rivets for self-piercing riveting differ in their geometry, the material used, the condition of the material and the coating. To shorten the manufacturing process, the use of stainless steel with high strain hardening as the rivet material represents a promising approach. This allows the coating of the rivets to be omitted due to the corrosion resistance of the material and, since the strength of the stainless steel is achieved by cold forming, heat treatment is no longer required. In addition, it is possible to adjust the local strength within the rivet. Because of that, the authors have elaborated a concept for using high nitrogen steel 1.3815 as the rivet material. The present investigation focusses on the joint strength in order to evaluate the capability of rivets in high nitrogen steel by comparison to conventional rivets made of treatable steel. Due to certain challenges in the forming process of the high nitrogen steel rivets, deviations result from the targeted rivet geometry. Mainly these deviations cause a lower joint strength with these rivets, which is, however, adequate. All in all, the capability of the new rivet is proven by the results of this investigation.
AU - Uhe, Benedikt
AU - Kuball, Clara-Maria
AU - Merklein, Marion
AU - Meschut, Gerson
ID - 22274
KW - Self-piercing Riveting
KW - Joining Technology
KW - Rivet Geometry
KW - Rivet Material
KW - High Nitrogen Steel
KW - Joint Strength
TI - Strength of self-piercing riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel
ER -
TY - JOUR
AB - The number of multi-material joints is increasing as a result of lightweight design. Self-piercing riveting (SPR) is an important mechanical joining technique for multi-material structures. Rivets for SPR are coated to prevent corrosion, but this coating also influences the friction that prevails during the joining process. The aim of the present investigation is to evaluate this influence. The investigation focuses on the common rivet coatings Almac® and zinc-nickel with topcoat as well as on uncoated rivet surfaces. First of all, the coating thickness and the uniformity of the coating distribution are analysed. Friction tests facilitate the classification of the surface properties. The influence of the friction on the characteristic joint parameters and the force-stroke curves is analysed by means of experimental joining tests. More in-depth knowledge of the effects that occur is achieved through the use of numerical simulation. Overall, it is shown that the surface condition of the rivet has an impact on the friction during the joining process and on the resulting joint. However, the detected deviations between different surface conditions do not restrict the operational capability of SPR and the properties of uncoated rivet surfaces, in particular, are similar to those of Almac®-coated rivets. It can thus be assumed that SPR with respect to the joining process is also possible without rivet coating in principle.
AU - Uhe, Benedikt
AU - Kuball, Clara-Maria
AU - Merklein, Marion
AU - Meschut, Gerson
ID - 22272
JF - Key Engineering Materials
KW - Coating
KW - Friction
KW - Joining
TI - Influence of the Rivet Coating on the Friction during Self-Piercing Riveting
VL - 883
ER -
TY - GEN
AU - Kuball, Clara-Maria
AU - Uhe, Benedikt
AU - Meschut, Gerson
AU - Merklein, Marion
ID - 30845
TI - Selective application of different forming temperatures for individual process stages in a rivet manufacturing process with high nitrogen steel
ER -
TY - JOUR
AB - The mechanical properties of joined structures are determined considerably by the chosen joining technology. With the aim of providing a method that enables a faster and more profound decision-making in the spatial distribution of joining points during product development, a new method for the load path analysis of joining points is presented. For an exemplary car body, the load type in the joining elements, i.e. pure tensile, shear and combined tensile-shear loads, is determined using finite element analysis (FEA). Based on the evaluated loads, the resulting load paths in selected joining points are analyzed using a 2D FE-model of a clinching point. State of the art methods for load path analysis are dependent on the selected coordinate system or the existing stress state. Thus, a general statement about the load transmission path is not possible at this time. Here, a novel method for the analysis of load paths is used, which is independent of the alignment of the analyzed geometry. The basic assumption of the new load path analysis method was confirmed by using a simple specimen with a square hole in different orientations. The results presented here show a possibility to display the load transmission path invariantly. In further steps, the method will be extended for 3D analysis and the investigation of more complex assemblies. The primary goal of this methodical approach is an even load distribution over the joining elements and the component. This will provide a basis for future design approaches aimed at reducing the number of joining elements in joined structures.
AU - Steinfelder, Christian
AU - Martin, Sven
AU - Brosius, Alexander
AU - Tröster, Thomas
ID - 24541
JF - Key Engineering Materials
SN - 1662-9795
TI - Load Path Transmission in Joining Elements
ER -
TY - JOUR
AU - Martin, Sven
AU - Tröster, Thomas
ID - 24548
JF - ESAFORM 2021
TI - Joint point loadings in car bodies – the influence of manufacturing tolerances and scatter in material properties
ER -
TY - CONF
AU - Stallmeister, Tim
AU - Martin, Sven
AU - Marten, Thorsten
AU - Tröster, Thomas
ID - 26994
TI - Experimental investigation on lightweight potentials of fiber-metal-laminates for automotive battery cases
ER -
TY - CONF
AU - Dörner, Marius
AU - Schöppner, Volker
ID - 23835
T2 - ANTEC 21
TI - Development of an Analytical Mathematical Modelling Approach for a More Precise Description of Disperse Melting in Solid Bed Breaking Screw Concepts
ER -
TY - JOUR
AU - Moritzer, Elmar
AU - Richters, Maximilian
ID - 31769
IS - 12
JF - Journal of Composites Science
SN - 2504-477X
TI - Injection Molding of Wood-Filled Thermoplastic Polyurethane
ER -
TY - JOUR
AU - Moritzer, Elmar
AU - Krassmann, Dimitri
ID - 31757
JF - Welding in the World
TI - Development of a new joining technology for hybrid joints of sheet metal and continuous fiber-reinforced thermoplastics
ER -
TY - CONF
AU - Rozo Vasquez, Julian
AU - Arian, Bahman
AU - Riepold, Markus
AU - Walther, Frank
AU - Homberg, Werner
AU - Trächtler, Ansgar
ID - 30297
T2 - Proceedings of the 11th International Workshop NDT in Progress
TI - Magnetic Barkhausen noise analysis for microstructural effects separation during flow forming of metastable austenite 304L.
ER -
TY - CONF
AB - One of the main objectives of production engineering is to reproducibly manufacture (complex) defect-free parts. To achieve this, it is necessary to employ an appropriate process or tool design. While this will generally prove successful, it cannot, however, offset stochastic defects with local variations in material properties. Closed-loop process control represents a promising approach for a solution in this context. The state of the art involves using this approach to control geometric parameters such as a length. So far, no research or applications have been conducted with closed-loop control for microstructure and product properties. In the project on which this paper is based, the local martensite content of parts is to be adjusted in a highly precise and reproducible manner. The forming process employed is a special, property-controlled flow-forming process. A model-based controller is thus to generate corresponding correction values for the tool-path geometry and tool-path velocity on the basis of online martensite content measurements. For the controller model, it is planned to use a special process or microstructure (correlation) model. The planned paper not only describes the experimental setup but also presents results of initial experimental investigations for subsequent use in the closed-loop control of α’-martensite content during flow-forming.
AU - Arian, Bahman
AU - Homberg, Werner
AU - Riepold, Markus
AU - Trächtler, Ansgar
AU - Rozo Vasquez, Julian
AU - Walther, Frank
ID - 23465
KW - Flow-forming
KW - Spinning
KW - Process Strategy
KW - Martensite Content
KW - Property Control
KW - Micromagnetic Measurement
KW - Metastable Austenitic Stainless Steel
SN - 978-2-87019-302-0
TI - Forming of metastable austenitic stainless steel tubes with axially graded martensite content by flow-forming
ER -
TY - CHAP
AU - Ahrens, Stephan
ED - Jakob, Reinhard
ID - 44367
T2 - Lichtspiele. Kino und Film im Brucker Land von den Anfängen bis zum Siegeszug des Fernsehens.
TI - Francesco (Franz) Stefani - Ein Regisseur mit barocken Anklägen.
ER -
TY - JOUR
AB - AbstractIn child–robot interaction (cHRI) research, many studies pursue the goal to develop interactive systems that can be applied in everyday settings. For early education, increasingly, the setting of a kindergarten is targeted. However, when cHRI and research are brought into a kindergarten, a range of ethical and related procedural aspects have to be considered and dealt with. While ethical models elaborated within other human–robot interaction settings, e.g., assisted living contexts, can provide some important indicators for relevant issues, we argue that it is important to start developing a systematic approach to identify and tackle those ethical issues which rise with cHRI in kindergarten settings on a more global level and address the impact of the technology from a macroperspective beyond the effects on the individual. Based on our experience in conducting studies with children in general and pedagogical considerations on the role of the institution of kindergarten in specific, in this paper, we enfold some relevant aspects that have barely been addressed in an explicit way in current cHRI research. Four areas are analyzed and key ethical issues are identified in each area: (1) the institutional setting of a kindergarten, (2) children as a vulnerable group, (3) the caregivers’ role, and (4) pedagogical concepts. With our considerations, we aim at (i) broadening the methodology of the current studies within the area of cHRI, (ii) revalidate it based on our comprehensive empirical experience with research in kindergarten settings, both laboratory and real-world contexts, and (iii) provide a framework for the development of a more systematic approach to address the ethical issues in cHRI research within kindergarten settings.
AU - Tolksdorf, Nils Frederik
AU - Siebert, Scarlet
AU - Zorn, Isabel
AU - Horwath, Ilona
AU - Rohlfing, Katharina J.
ID - 24901
JF - International Journal of Social Robotics
SN - 1875-4791
TI - Ethical Considerations of Applying Robots in Kindergarten Settings: Towards an Approach from a Macroperspective
ER -
TY - JOUR
AU - Chormey, Dotse Selali
AU - Tonbul, Güldeniz
AU - Soylu, Güneş
AU - Saygılar, Ahmet
AU - Bakırdere, Sezgin
ID - 44375
IS - 2
JF - Analytical Letters
KW - Dispersive liquid-liquid microextraction (DLLME)
KW - gas chromatography – mass spectrometry (GC-MS)
KW - polycyclic aromatic hydrocarbons
KW - QuEChERS
SN - 0003-2719
TI - Determination of Four Priority Polycyclic Aromatic Hydrocarbons in Food Samples by Gas Chromatography – Mass Spectrometry (GC-MS) after Vortex Assisted Dispersive Liquid-Liquid Microextraction (DLLME)
VL - 55
ER -
TY - GEN
AU - Ahrens, Stephan
ID - 44386
T2 - In: Filmblatt 25:73/74
TI - Hermann Kappelhoff, Christine Lötscher, Daniel Illger (Hg.): Filmische Seitenblicke. Cinepoetische Exkursionen ins Kino von 1968. Berlin, Bosten: De Gruyter 2018
ER -
TY - GEN
AU - Ahrens, Stephan
ID - 44381
T2 - In: Filmblatt 25:73/74
TI - Christina Gerhardt, Marco Abel (Hg.): Celluloid Revolt. German Screen Cultures and the Long 1968. Rochester: Camden House 2019
ER -
TY - GEN
AU - Ahrens, Stephan
ID - 44392
T2 - Kinema Kommunal, Nummer 2, Juni 2021
TI - Sammler und Beobachter. Das Programm der diesjährigen Internationalen Kurzfilmtage Oberhausen, Dschungel (jungle World)
ER -
TY - GEN
AU - Ahrens, Stephan
ID - 44391
T2 - In: Filmdienst, 24.08.2021
TI - Guy Gilles und das Kino der Entwurzelung
ER -
TY - GEN
AU - Ahrens, Stephan
ID - 44426
TI - Biografie Cox Habbema
ER -
TY - GEN
AU - Ahrens, Stephan
ID - 44431
TI - Biografie Peter Rabenalt
ER -
TY - CHAP
AU - Bruckner, Franziska
AU - Eckel, Julia
AU - Feyersinger, Erwin
AU - Freisleben-Teutscher, Christian F.
AU - Ohnmacht, Tina
ED - Bruckner, Franziska
ED - Hagler, Jürgen
ED - Lang, Holger
ED - Reinert, Maike Sarah
ID - 44466
T2 - In Wirklichkeit Animation …
TI - Bilden mit/zu Animation
ER -
TY - CHAP
AU - Eckel, Julia
ED - Bruckner, Franziska
ED - Hagler, Jürgen
ED - Lang, Holger
ED - Reinert, Maike Sarah
ID - 44465
T2 - In Wirklichkeit Animation ...
TI - Tech Demo/Tech Doku. Zur Wirklichkeit des Animierens
ER -
TY - CHAP
AU - Eckel, Julia
ED - Kreuzer, Stefanie
ID - 44467
T2 - FilmZeit – Zeitdimensionen des Films.
TI - Zeitliche Komplexität im Film
ER -
TY - JOUR
AU - Wübbeke, Andrea
AU - Schöppner, Volker
AU - Arndt, Theresa
AU - Maras, Jan-Ole
AU - Fitze, Marcus
AU - Moltzahn, Christian
AU - Wu, Tao
AU - Niendorf, Thomas
ID - 24383
JF - Polymers
TI - Effect of nucleating additives on short- and long-term tensile strength and residual stresses of welded polypropylene samples
ER -
TY - THES
AU - Wübbeke, Andrea
ID - 37632
TI - Prozess-Struktur-Eigenschaftsbeziehung beim Heizelementschweißen von Polypropylen
ER -
TY - CHAP
AU - Wiens, Eugen
AU - Homberg, Werner
AU - Arian, Bahman
AU - Möhring, Kerstin
AU - Walther, Frank
ID - 30296
SN - 2367-1181
T2 - Forming the Future
TI - Forming of Parts with Locally Defined Mechanical and Ferromagnetic Properties by Flow-Forming
ER -
TY - JOUR
AU - Wischer, Christian
AU - Wiens, Eugen
AU - Homberg, Werner
ID - 26082
JF - Journal of Advanced Joining Processes
SN - 2666-3309
TI - Joining with versatile joining elements formed by friction spinning
VL - 3
ER -
TY - GEN
ED - Wiens, Eugen
ED - Wischer, Christian
ED - Homberg, Werner
ID - 22453
TI - Development of a novel adaptive joining technology employing Friction-Spun Joint Connectors (FSJC)
ER -
TY - JOUR
AB - Multiprofessionelle Teams sind notwendiger Bestandteil inklusiver Schulen. Die Verteilung von Aufgaben, welche über die Zusammenarbeit von allgemeinen und sonderpädagogischen Lehrkräften im Unterricht hinausgehen, wurde bislang jedoch selten systematisch untersucht. Im Beitrag werden deskriptive Befunde aus dem Projekt BiFoKi (Bielefelder Fortbildungskonzept zur Kooperation in inklusiven Schulen) zu den Zuständigkeiten von allgemeinen (N = 170) und sonderpädagogischen Lehrkräften (N = 24) sowie Schulsozialarbeiterinnen (N = 11) an inklusiven Sekundar- und Gesamtschulen präsentiert. Sie deuten auf eine Persistenz traditioneller Rollenmuster und Aufgabenverteilungen hin. Bei den befragten sonderpädagogischen Lehrkräften können zwei unterschiedliche Rollenmuster herausgearbeitet werden. Die Schulsozialarbeiterinnen weisen ein enges Arbeitsfeld mit einem Fokus auf Eltern-Schule-Kooperation auf.
AU - Neumann, Phillip
AU - Grüter, Sandra
AU - Eckel, Lisa
AU - Lütje-Klose, Birgit
AU - Wild, Elke
AU - Gorges, Julia
ID - 34484
IS - 4
JF - Zeitschrift für Heilpädagogik
KW - Inklusion
KW - Sonderpädagogik
KW - Sekundarstufe
KW - Gesamtschulen
KW - Kooperation
KW - Schulsozialarbeit
KW - BiFoKi
SN - 0513-9066
TI - Aufgaben und Zuständigkeiten von allgemeinen und sonderpädagogischen Lehrkräften sowie Fachkräften der Schulsozialarbeit in inklusiven Schulen der Sekundarstufe I. Erste Ergebnisse aus dem BiFoKi-Projekt
VL - 73
ER -
TY - CHAP
AU - Tecklenburg, Feline
ED - Fehle, Hans Jörg
ED - Langenbacher, Andrea
ID - 44526
T2 - Dass die Welt wohnlich für alle wird. Klartexte, Anfragen, Perspektiven. Ina Praetorius zum 65. Geburtstag
TI - Wirtschaft ist Care ist radikale Demokratie
ER -
TY - JOUR
AB - This paper is devoted to algebro-geometric study of infinite dimensional Lie bialgebras, which arise from solutions of the classical Yang–Baxter equation. We regard trigonometric solutions of this equation as twists of the standard Lie bialgebra cobracket on an appropriate affine Lie algebra and work out the corresponding theory of Manin triples, putting it into an algebro-geometric context. As a consequence of this approach, we prove that any trigonometric solution of the classical Yang–Baxter equation arises from an appropriate algebro-geometric datum. The developed theory is illustrated by some concrete examples.
AU - Burban, Igor
AU - Abedin, R.
ID - 44329
IS - 2
JF - Communications in Mathematical Physics
TI - Algebraic geometry of Lie bialgebras defined by solutions of the classical Yang-Baxter equation
VL - 387
ER -
TY - BOOK
AU - Adelmann, Ralf
ID - 44546
TI - Listen und Rankings. Über Taxonomien des Populären
ER -
TY - BOOK
AU - Buhl, Heike M.
AU - Bonanati, Sabrina
AU - Eickelmann, Birgit
ID - 32464
SN - 978-3-8017-3074-1
TI - Schule in der digitalen Welt
ER -
TY - CHAP
AU - Eickelmann, Birgit
ID - 44678
T2 - Remote Schools. Schulisches Distanzlernen in und nach der Corona-Pandemie.
TI - Digitale Schultransformation ganzheitlich gestalten
ER -
TY - GEN
AU - Eickelmann, Birgit
ID - 44680
TI - Lehren aus der Pandemie: Gleiche Chancen für alle Kinder und Jugendlichen sichern. Stellungnahme der Expert*innenkommission der Friedrich-Ebert-Stiftung
ER -
TY - CONF
AB - Challenges in decisions on technical changes are the lack of knowledge about the expected impact and change propagation. Currently, no literature study contains a systematic differentiation and evaluation of existing approaches, which is a prerequisite for practitioners to select a suitable approach. This research aims at defining differentiation criteria as well as generally applicable requirements for evaluation. A four-step approach is used: systematic literature review on approaches for impact analysis of engineering changes (1), categorization and prioritization of approaches based on reoccuring elements (2), derivation of context specific requirements for evaluation (3), and evaluation of approaches (4). The result indicates existing potential of object-oriented modeling approaches.
AU - Gräßler, Iris
AU - Wiechel, Dominik
ED - Krause, Dieter
ED - Paetzold, Kristin
ED - Wartzack, Sandro
ID - 24280
KW - Engineering Change Management
KW - Impact Analysis
KW - Engineering Changes
KW - Model-based Systems Engineering
KW - Product Developmen
T2 - DS 111: Proceedings of the 32nd Symposium Design for X
TI - Systematische Bewertung von Auswirkungsanalysen des Engineering Change Managements
ER -
TY - CONF
AU - Gräßler, Iris
AU - Roesmann, Daniel
AU - Wiechel, Dominik
AU - Preuß, Daniel
AU - Pottebaum, Jens
ID - 26866
T2 - 54th CIRP Conference on Manufacturing Systems
TI - Determine similarity of assembly operations using semantic technology
ER -
TY - CONF
AU - Gräßler, Iris
AU - Wiechel, Dominik
AU - Pottebaum, Jens
ID - 23392
T2 - Proceedings of 19th Drive Train Technology Conference (ATK 2021), 9. - 11. Mrz. 2021
TI - Role model of model-based systems engineering application
ER -
TY - CHAP
AU - Schreckenberg, Stefan
ED - Mecke, Jochen
ED - Schoentjes, Pierre
ED - Donnarieix, Anne-Sophie
ID - 44693
T2 - Esthétique de la guerre - Éthique de la paix. Un siècle de littérature sur la Grande Guerre
TI - Éthiques et esthétiques de la Grande Guerre chez des auteurs de la génération des petits-enfants
ER -
TY - CONF
AB - Challenges of the development of mechatronic systems and corresponding production systems have increased steadily. Changes are primarily due to increased product complexity and the connection to the internet of things and services, enabling Cyber-Physical Systems (CPS) and Cyber-Physical Production Systems (CPPS). Major innovations of the revised VDI guideline 2206 for developing mechatronic systems are systems thinking as a core element and six checkpoints for structuring deliverables along the V-Model. These checkpoints serve for orientation in result progress and thus enable a structured and complete development process. However, tasks and checkpoints of the new guideline focus on the product development itself without integrating the development of related CPPS, enabling optimization simultaneously to system development. Implications are derived by a three-step analysis. The paper at hand contributes fundamental extensions of the checkpoint questions regarding integrated CPPS development. These questions provide methodical support for system developers of CPPS for CPS by enabling the project manager to check the status, schedule further development steps and evaluate the maturity of the whole, integrated development.
AU - Gräßler, Iris
AU - Wiechel, Dominik
AU - Roesmann, Daniel
AU - Thiele, Henrik
ID - 24080
KW - Cyber-Physical Production System (CPPS)
KW - V-Model
KW - Product System Development
KW - Integrated Development
KW - VDI 2206
SN - 2212-8271
T2 - Procedia CIRP
TI - V-model based development of cyber-physical systems and cyber-physical production systems
ER -
TY - CONF
AB - In order to optimize production processes and to avoid errors, it is not only necessary to automate processes, but also to integrate workers with their individual personality and skill profiles. For this purpose, human factors should be considered in the entire design process. The integrated view of mental human models, the cognitive demand of the working environment and the automation design is essential. Human-System Integration (HSI) constitutes a promising approach. Current model-based approaches offer possibilities to analyze and optimize tasks within an overall system, but they still lack integration. This leads to the research question: How can human factors be integrated into a system model of a socio-technical, Cyber-Physical Production System? The paper at hand contributes an approach of human factor integration into the procedure of Model-Based Systems Engineering for Cyber-Physical Production Systems (CPPS). The approach combines a system model of a CPPS with HSI concepts. In accordance to the benefits of MBSE, SysML is selected to integrate human factors in the development process of a CPPS. The approach is divided into five steps, which includes the extension of the SysML meta model. This allows the optimization of skill-based human-machine interaction. Defined HSI-Profiles enable system developers to integrate employee requirements at early stages within the development process. The approach is demonstrated by the maintenance of a 3D-Printer as a case example. This research enables system developers to depict individual workers with the help of the developed concepts and systematically integrate them into the development process of a CPPS.
AU - Gräßler, Iris
AU - Wiechel, Dominik
AU - Roesmann, Daniel
ID - 24281
SN - 2212-8271
T2 - Procedia CIRP
TI - Integrating human factors in the model based development of cyber-physical production systems
ER -
TY - CONF
AU - Hesse, Philipp
AU - Gräßler, Iris
ED - Biedermann, Hubert
ED - Posch, Wolfgang
ED - Vorbach, Stefan
ID - 24444
T2 - Digitalisierung im Kontext von Nachhaltigkeit und Klimawandel
TI - Digitaler Zwilling zur Gestaltung der Prozesse im End-of-Life
VL - 9
ER -
TY - GEN
AU - Gräßler, Iris
AU - Hentze, Julian
AU - Hesse, Philipp
AU - Preuß, Daniel
AU - Thiele, Henrik
AU - Wiechel, Dominik
AU - Bothen, Martin
AU - Bruckmann, Tobias
AU - Dattner, Michael
AU - Ehl, Thomas
AU - Hawlas, Martin
AU - Krimpmann, Christoph
AU - Lachmayer, Roland
AU - Knöchelmann, Marvin
AU - Mock, Randolf
AU - Mozgova, Iryna
AU - Schneider, Maximilian
AU - Stollt, Guido
ID - 27680
TI - VDI/VDE 2206 - Entwicklung mechatronischer und cyber-physischer Systeme
ER -
TY - CONF
AB - The battle of developing hardware Trojans and corresponding countermeasures has taken adversaries towards ingenious ways of compromising hardware designs by circumventing even advanced testing and verification methods. Besides conventional methods of inserting Trojans into a design by a malicious entity, the design flow for field-programmable gate arrays (FPGAs) can also be surreptitiously compromised to assist the attacker to perform a successful malfunctioning or information leakage attack. The advanced stealthy malicious look-up-table (LUT) attack activates a Trojan only when generating the FPGA bitstream and can thus not be detected by register transfer and gate level testing and verification. However, also this attack was recently revealed by a bitstream-level proof-carrying hardware (PCH) approach. In this paper, we present a novel attack that leverages malicious routing of the inserted Trojan circuit to acquire a dormant state even in the generated and transmitted bitstream. The Trojan's payload is connected to primary inputs/outputs of the FPGA via a programmable interconnect point (PIP). The Trojan is detached from inputs/outputs during place-and-route and re-connected only when the FPGA is being programmed, thus activating the Trojan circuit without any need for a trigger logic. Since the Trojan is injected in a post-synthesis step and remains unconnected in the bitstream, the presented attack can currently neither be prevented by conventional testing and verification methods nor by recent bitstream-level verification techniques.
AU - Ahmed, Qazi Arbab
AU - Wiersema, Tobias
AU - Platzner, Marco
ID - 20681
T2 - 2021 Design, Automation & Test in Europe Conference & Exhibition (DATE)
TI - Malicious Routing: Circumventing Bitstream-level Verification for FPGAs
ER -