TY - JOUR A1 - Salamat, Babak A1 - Elsbacher, Gerhard T1 - Steering a Swarm of Large-Scale Underactuated Mechanical Systems Using a Generalized Coordinates Transformation JF - Aerospace N2 - Steering large-scale particle or robot systems is challenging because of their high dimensionality. We use a centralized stochastic approach that allows for optimal control at the cost of a central element instead of a decentralized approach. Previous works are often restricted to the assumption of fully actuated robots. Here we propose an approach for underactuated robots that allows for energy-efficient control of the robot system. We consider a simple task of gathering the robots (minimizing positional variance) and steering them towards a goal point within a bounded area without obstacles. We make two main contributions. First, we present a generalized coordinate transformation for underactuated robots, whose physical properties should be considered. We choose Euler-Lagrange systems that describe a large class of robot systems. Second, we propose an optimal control mechanism with the prime objective of energy efficiency. We show the feasibility of our approach in robot simulations. UR - https://doi.org/10.3390/aerospace9110702 KW - aerospace KW - generalized multi-coordinates transformation KW - network control systems KW - underactuated Euler–Lagrange systems Y1 - 2022 UR - https://doi.org/10.3390/aerospace9110702 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-29488 SN - 2226-4310 VL - 9 IS - 11 PB - MDPI CY - Basel ER - TY - JOUR A1 - Chandra, Sourav A1 - Maeder, Marcus A1 - Bienert, Jörg A1 - Beinersdorf, H. A1 - Jiang, W. A1 - Matsagar, Vasant A1 - Marburg, S. T1 - Identification of temperature-dependent elastic and damping parameters of carbon–epoxy composite plates based on experimental modal data JF - Mechanical Systems and Signal Processing UR - https://doi.org/10.1016/j.ymssp.2022.109945 KW - Operational modal analysis KW - T700 carbon–epoxy KW - Thermal environment KW - Experimental test KW - Inverse method KW - Temperature-dependent elastic and damping parameters Y1 - 2022 UR - https://doi.org/10.1016/j.ymssp.2022.109945 SN - 0888-3270 VL - 2023 IS - 187 PB - Elsevier ER - TY - JOUR A1 - Mehta, Kedar A1 - Zörner, Wilfried A1 - Greenough, Richard T1 - Residential Building Construction Techniques and the Potential for Energy Efficiency in Central Asia: Example from High-Altitude Rural Settlement in Kyrgyzstan JF - Energies N2 - Building construction in rural Kyrgyzstan is heavily dominated by earthen buildings. Old and inappropriate residential building structures contribute significantly to high domestic space heating energy consumption. Therefore, it is necessary to understand the relevant building construction techniques. However, the scant information on Kyrgyz building techniques, especially for high-altitude rural settlements, was the prime motivation to perform the presented study. The key objective of the study is to investigate residential building construction techniques in high-altitude rural Kyrgyzstan, and this was to be achieved by house visits during field trips, literature review, and pilot interviews with local people. The analysis enabled the detailed identification of individual building envelopes as well as predominant building materials to be recorded. Based on the assessment, a housing profile was created that represents the typical characteristics of traditional rural Kyrgyz houses. Furthermore, the study demonstrates the potential for energy savings in rural Kyrgyz houses of 50–70%. However, local conditions prevent people from making improvements to all domestic energy efficiency parameters simultaneously. Therefore, the study developed a ‘sequential roadmap’ to reduce domestic space heating demand in different phases based on simulation studies. Existing low-income rural Kyrgyz habitations can use the presented roadmap to reduce domestic space heating demand sequentially to overcome financial barriers and, therefore, contribute to establishing sustainable buildings in Kyrgyzstan. These results may be partially replicated in other Central Asian rural communities depending on their location and building characteristics. UR - https://doi.org/10.3390/en15238869 KW - Central Asia KW - earthen high-altitude houses KW - building construction KW - vernacular buildings KW - energy efficiency KW - cold climate Y1 - 2022 UR - https://doi.org/10.3390/en15238869 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-29752 SN - 1996-1073 VL - 15 IS - 23 PB - MDPI CY - Basel ER - TY - JOUR A1 - Stark, Matthias A1 - Trinkl, Christoph A1 - Zörner, Wilfried A1 - Greenough, Richard T1 - Methodological Evaluation of Storage Systems for Flexible Power Generation from Solid Biomass JF - Chemical Engineering & Technology UR - https://doi.org/10.1002/ceat.201800099 KW - biomass combustion plan KW - delphi survey KW - flexible power generation KW - solid biomass KW - steam storage Y1 - 2018 UR - https://doi.org/10.1002/ceat.201800099 SN - 1521-4125 N1 - Part of Special Issue "Bioenergy – Flexible and Integrated Into the Next Age" VL - 41 IS - 11 SP - 2168 EP - 2176 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Funk Drechsler, Maikol A1 - Fiorentin, Thiago Antonio A1 - Göllinger, Harald T1 - Actor-Critic Traction Control Based on Reinforcement Learning with Open-Loop Training JF - Modelling and Simulation in Engineering N2 - The use of actor-critic algorithms can improve the controllers currently implemented in automotive applications. This method combines reinforcement learning (RL) and neural networks to achieve the possibility of controlling nonlinear systems with real-time capabilities. Actor-critic algorithms were already applied with success in different controllers including autonomous driving, antilock braking system (ABS), and electronic stability control (ESC). However, in the current researches, virtual environments are implemented for the training process instead of using real plants to obtain the datasets. This limitation is given by trial and error methods implemented for the training process, which generates considerable risks in case the controller directly acts on the real plant. In this way, the present research proposes and evaluates an open-loop training process, which permits the data acquisition without the control interaction and an open-loop training of the neural networks. The performance of the trained controllers is evaluated by a design of experiments (DOE) to understand how it is affected by the generated dataset. The results present a successful application of open-loop training architecture. The controller can maintain the slip ratio under adequate levels during maneuvers on different floors, including grounds that are not applied during the training process. The actor neural network is also able to identify the different floors and change the acceleration profile according to the characteristics of each ground. UR - https://doi.org/10.1155/2021/4641450 Y1 - 2021 UR - https://doi.org/10.1155/2021/4641450 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-15862 SN - 1687-5605 VL - 2021 PB - Hindawi CY - New York ER - TY - CHAP A1 - Wech, Lothar A1 - Huber, Thomas A1 - Kolb, Jan Christopher T1 - Findings on the Technology of autonomous Shuttle Buses from the Pilot Operation in Bad Birnbach T2 - PraxisConference Autonomous Emergency Braking and Steering Y1 - 2019 UR - https://www.carhs.de/de/publikationen/product/praxisconference-aebaes-2019.html PB - carhs gmbh CY - Alzenau ER - TY - CHAP A1 - Pourtoulidou, Despoina A1 - Steger, Fabian A1 - Burger, Uli A1 - Göllinger, Harald A1 - König, Ludwig A1 - Obermeier, Erwin A1 - Schweiger, Hans-Georg A1 - Frey, Andreas ED - Nagy, Balázs Vince ED - Murphy, Mike ED - Järvinen, Hannu-Matti ED - Kálmán, Anikó T1 - Mission-framed Project-based Learning and Teaching BT - integrating an Electric Powertrain into a Motor Glider T2 - Varietas delectat… Complexity is the new normality: SEFI 47th Annual Conference Proceedings UR - https://www.sefi.be/proceedings/?conference=2019-budapest-isbn-978-2-87352-018-2 KW - Project-based learning KW - Engineering Higher Education Y1 - 2019 UR - https://www.sefi.be/proceedings/?conference=2019-budapest-isbn-978-2-87352-018-2 SN - 978-2-87352-018-2 SP - 879 EP - 888 PB - SEFI CY - Brüssel ER - TY - CHAP A1 - Wech, Lothar A1 - Böhm, Klaus A1 - Schweiger, Hans-Georg A1 - Paula, Daniel T1 - Event Data Recorder (EDR) for automated vehicles BT - Legal certainty and data privacy for all T2 - SafetyWeek : Die Zukunft der Fahrzeugsicherheit UR - https://www.carhs.de/de/publikationen/product/safetyweek-2020-replay.html Y1 - 2020 UR - https://www.carhs.de/de/publikationen/product/safetyweek-2020-replay.html ER - TY - CHAP A1 - Wech, Lothar T1 - Elektrofahrzeuge und Verkehrssicherheit T2 - VDI-Expertenmeeting "Berliner Erklärung zur Fahrzeugsicherheit" Y1 - 2020 UR - https://www.vdi.de/tg-fachgesellschaften/vdi-gesellschaft-fahrzeug-und-verkehrstechnik/kraftfahrzeugtechnik/berliner-erklaerung-zur-fahrzeugsicherheit PB - VDI Verein Deutscher Ingenieure e.V. CY - Düsseldorf ER - TY - JOUR A1 - Selleneit, Volker A1 - Stöckl, Martin A1 - Holzhammer, Uwe T1 - System efficiency: methodology for rating of industrial utilities in electricity grids with a high share of variable renewable energies BT - a first approach JF - Renewable and Sustainable Energy Reviews UR - https://doi.org/10.1016/j.rser.2020.109969 KW - system efficiency KW - industrial utilities KW - variable renewable energies KW - residual power KW - flexibility KW - electricity price time series Y1 - 2020 UR - https://doi.org/10.1016/j.rser.2020.109969 SN - 1364-0321 VL - 2020 IS - 130 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Selleneit, Volker A1 - Stöckl, Martin A1 - Philipp, Matthias A1 - Mast, Tanja A1 - Holzhammer, Uwe A1 - Schlosser, Florian T1 - System efficiency rating of industrial utilities in electricity grids with a high share of variable renewable energies JF - Chemical Engineering Transactions UR - https://doi.org/10.3303/CET1976163 Y1 - 2019 UR - https://doi.org/10.3303/CET1976163 SN - 2283-9216 VL - 2019 IS - 76 SP - 973 EP - 978 PB - AIDIC CY - Mailand ER - TY - JOUR A1 - Stöckl, Martin A1 - Selleneit, Volker A1 - Philipp, Matthias A1 - Holzhammer, Uwe T1 - An approach to calculate electricity costs for the german industry for a system efficient design by combining energy efficiency and demand response JF - Chemical Engineering Transactions UR - https://doi.org/10.3303/CET1976191 Y1 - 2019 UR - https://doi.org/10.3303/CET1976191 SN - 2283-9216 VL - 2019 IS - 76 SP - 1141 EP - 1146 PB - AIDIC CY - Mailand ER - TY - CHAP A1 - Hümmer, Benedikt A1 - Mast, Tanja A1 - Koller, Maria A1 - Holzhammer, Uwe T1 - Smart Markets in Southern Germany: Key factors for profits of biogas plants T2 - 2020 17th International Conference on the European Energy Market (EEM) UR - https://doi.org/10.1109/EEM49802.2020.9221988 KW - biogas plants KW - market-based congestion management KW - Smart Market Y1 - 2020 UR - https://doi.org/10.1109/EEM49802.2020.9221988 SN - 978-1-7281-6919-4 PB - IEEE CY - Piscataway ER - TY - RPRT A1 - Eltrop, Ludger A1 - Nagel, Sylvio A1 - Holzhammer, Uwe A1 - Mast, Tanja A1 - Wachinger, Gisela T1 - Schlussbericht zu Nr. 3.2 Verbundvorhaben „OptiSys“ UR - https://doi.org/10.2314/KXP:1738015386 Y1 - 2020 UR - https://doi.org/10.2314/KXP:1738015386 ER - TY - CHAP A1 - Kolb, Jan Christopher A1 - Wech, Lothar A1 - Schwabe, Martin A1 - Ruzok, Christopher A1 - Trost, Christoph ED - Riener, Andreas ED - Appel, Alexandra ED - Dorner, Wolfgang ED - Huber, Thomas ED - Kolb, Jan Christopher ED - Wagner, Harry T1 - Technische Aspekte des automatisierten Fahrens am Projekt des autonomen Shuttlebusses in Bad Birnbach T2 - Autonome Shuttlebusse im ÖPNV N2 - Die Entwickler von selbstfahrenden Fahrzeugen sind sich einig, dass es nach heutigem Stand der Technik über eine Milliarde Testkilometer bedarf, um ein autonom fahrendes Fahrzeug zu entwickeln. Daher überrascht es nicht, dass der „autonome“ Shuttlebus in Bad Birnbach lediglich als teilautomatisiert einzustufen ist. Dennoch ist das Projekt wertvoll, um Erkenntnisse für die Entwicklung von autonomen Fahrzeugen zu erlangen und deren Einsatz im öffentlichen Personennahverkehr (ÖPNV) beurteilen zu können. Im vorliegenden Teilprojekt wurden innerhalb von vier Monaten über dreihundert Situationen dokumentiert, in denen die Fahrt unplanmäßig unterbrochen wurde. Diese wurden anschließend ausgewertet und teilweise in Versuchen nachgestellt. Es hat sich gezeigt, dass der Shuttlebus im aktuellen Betriebsmodell unfallfrei fahren kann. Allerdings ist für das unfall- und unterbrechungsfreie Fahren der durch die Zulassungsauflagen vorgeschriebene Operator an Bord zwingend erforderlich. Dieser muss an verschiedenen Stellen der Strecke – inklusive der Haltestellen – die Weiterfahrt bestätigen, den Bus um Hindernisse lenken und bei einem drohenden Unfall eingreifen. Ohne Operator käme es zur Kollision, da die Technik des Busses nicht alle kritischen Situationen erkennt. Der Bus kann im aktuellen Entwicklungsstand weder fahrerlos betrieben noch als zuverlässige Ergänzung im ÖPNV eingesetzt werden. Der Bus stellt dennoch einen wichtigen Schritt in Richtung autonomen Fahrens dar, welches weiterhin im Rahmen zukünftiger Forschungs- und Entwicklungsprojekte vorangetrieben werden muss. UR - https://doi.org/10.1007/978-3-662-59406-3_5 Y1 - 2020 UR - https://doi.org/10.1007/978-3-662-59406-3_5 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-17520 SN - 978-3-662-59405-6 SN - 978-3-662-59406-3 SP - 57 EP - 91 PB - Springer Vieweg CY - Berlin, Heidelberg ER - TY - CHAP A1 - Böhm, Klaus A1 - Paula, Daniel A1 - Wech, Lothar A1 - Schweiger, Hans-Georg T1 - Event Data Recorder (EDR) for accidents with automated vehicles BT - the accident analysis of the future T2 - 12. VDI-Tagung Fahrzeugsicherheit: Fahrzeugsicherheit im Umfeld von neuen Rating- und Gesetzesanforderungen UR - https://doi.org/10.51202/9783181023648-349 Y1 - 2019 UR - https://doi.org/10.51202/9783181023648-349 SN - 978-3-18-092364-2 SN - 978-3-18-102364-8 SP - 349 EP - 364 PB - VDI Verlag CY - Düsseldorf ER - TY - CHAP A1 - Mast, Tanja A1 - Hümmer, Benedikt A1 - Holzhammer, Uwe T1 - Erlöspotential für Biogasanlagen an Smart Markets T2 - Tagungsunterlagen Zukünftige Stromnetze UR - https://www.zukunftsnetz.net/konferenz/tagungsbaende Y1 - 2021 UR - https://www.zukunftsnetz.net/konferenz/tagungsbaende SN - 978-3-948176-12-9 SP - 224 EP - 245 PB - Conexio GmbH CY - Pforzheim ER - TY - CHAP A1 - Hümmer, Benedikt A1 - Mast, Tanja A1 - Holzhammer, Uwe ED - Nelles, Michael T1 - Einflussfaktoren auf das Erlöspotential von Biogasanlagen in Smart Markets T2 - Tagungsband 15. Rostocker Bioenergieforum UR - https://doi.org/10.18453/rosdok_id00003024 Y1 - 2021 UR - https://doi.org/10.18453/rosdok_id00003024 SN - 978-3-86009-524-9 SP - 109 EP - 118 PB - Universität Rostock CY - Rostock ER - TY - JOUR A1 - Philipp, Matthias A1 - Schumm, Gregor A1 - Schlosser, Florian A1 - Peesel, Ron-Hendrick A1 - Holzhammer, Uwe T1 - Grundsatzfragen der Abwärmenutzung JF - BWK - Das Energie-Fachmagazin Y1 - 2017 UR - https://www.ingenieur.de/fachmedien/bwk/energieversorgung/grundsatzfragen-der-abwaermenutzung/ SN - 1618-193X VL - 69 IS - 4 SP - 36 EP - 39 PB - VDI Fachmedien CY - Düsseldorf ER - TY - JOUR A1 - Corrêa da Silva, Cauê A1 - Volpato, Guilherme A1 - Fredel, Márcio Celso A1 - Tetzlaff, Ulrich T1 - Low-pressure processing and microstructural evaluation of unidirectional carbon fiber-reinforced aluminum-nickel matrix composites JF - Journal of Materials Processing Technology UR - https://doi.org/10.1016/j.jmatprotec.2019.01.032 KW - Aluminum matrix composites KW - Carbon fibers KW - Composite processing KW - Intermetallics KW - Casting Y1 - 2019 UR - https://doi.org/10.1016/j.jmatprotec.2019.01.032 SN - 0924-0136 VL - 2019 IS - 269 SP - 10 EP - 15 PB - Elsevier CY - Amsterdam ER - TY - CHAP A1 - Volpato, Guilherme A1 - Fredel, Márcio Celso A1 - Tetzlaff, Ulrich T1 - Dry Sliding Wear and Fe Contamination of Investment-cast SiC Foam Reinforced Aluminum Matrix Composites T2 - EuroBrake 2019 Conference Proceedings Y1 - 2019 SN - 978-0-9572076-3-9 PB - FISITA CY - Bishops Stortford ER - TY - JOUR A1 - Lemos, Georges A1 - Fredel, Márcio Celso A1 - Pyczak, Florian A1 - Tetzlaff, Ulrich T1 - Influence of distinct manufacturing processes on the microstructure of Ni-based metal matrix composites submitted to long thermal exposure JF - Key Engineering Materials UR - https://doi.org/10.4028/www.scientific.net/KEM.809.79 KW - MMC KW - particle reinforcement KW - TiC KW - isothermal aging KW - superalloy KW - Inconel X-750 Y1 - 2019 UR - https://doi.org/10.4028/www.scientific.net/KEM.809.79 SN - 1662-9795 VL - 2019 IS - 809 SP - 79 EP - 86 PB - Trans Tech Publications CY - Baech ER - TY - CHAP A1 - Gulden, Florian A1 - Reinhold, B. A1 - Gramstat, Sebastian A1 - Tetzlaff, Ulrich A1 - Höppel, Heinz Werner ED - Pfeffer, Peter E. T1 - Investigation of the run-in and corrosion behavior of a PEO-coated aluminum brake disc T2 - 10th International Munich Chassis Symposium 2019: chassis.tech plus UR - https://doi.org/10.1007/978-3-658-26435-2_43 Y1 - 2019 UR - https://doi.org/10.1007/978-3-658-26435-2_43 SN - 978-3-658-26435-2 SN - 978-3-658-26434-5 SP - 611 EP - 631 PB - Springer Vieweg CY - Wiesbaden ER - TY - CHAP A1 - Bienert, Jörg A1 - Cavalli Kluthcovsky, Samuel ED - Carletti, Eleonora ED - Crocker, Malcolm ED - Pawelczyk, Marek ED - Tuma, Jiri T1 - Application of deep learning to frf based structural health monitoring T2 - "Advances in Acoustics, Noise and Vibration - 2012" : Proceedings of the 27th International Congress on Sound and Vibration Y1 - 2021 UR - https://cloudserver048868.home.pl/web/content/archives_icsv_last/2021_icsv27/index2c15.html?va=viewpage&vaid=403 SN - 978-83-7880-799-5 PB - Silesian University Press CY - Gliwice ER - TY - JOUR A1 - Bader, Tobias A1 - Brandmayr, Sebastian A1 - Trinkl, Christoph A1 - Zörner, Wilfried A1 - Hanby, Victor Ian T1 - Climate Specific Design and Effectiveness of Solar DEC-systems BT - a Methodological Zoning Approach JF - Energy Procedia N2 - The climate specific effectiveness of solar DEC-systems and relevant preferable adaptions of the system design have been so far predominantly analysed based on individual simulation for selected sites. In order to systematically deduce design-specific outline data for the application of the solar DEC-technology at climatically different sites a methodological zoning approach was further developed. A subsequent meteorological analysis for 17 sites mapping the world climate creates a transparent understanding on the activity of the specific system components. This results in a comprehension on the site-specific effectiveness of solar DEC-systems and provides insights on principally relevant and efficient system configurations. UR - https://doi.org/10.1016/j.egypro.2014.02.090 KW - Solar DEC-air-conditioning KW - methodological system design KW - worldwide transferabiltiy KW - climate driven design KW - system effectiveness Y1 - 2014 UR - https://doi.org/10.1016/j.egypro.2014.02.090 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-23614 SN - 1876-6102 N1 - Part of special issue: "Proceedings of the 2nd International Conference on Solar Heating and Cooling for Buildings and Industry (SHC 2013)" VL - 2014 IS - 48 SP - 778 EP - 789 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Reiter, Christoph A1 - Brandmayr, Sebastian A1 - Trinkl, Christoph A1 - Zörner, Wilfried A1 - Hanby, Victor Ian T1 - Performance Optimisation of Polymeric Collectors by Means of Dynamic Simulation and Sensitivity Analysis JF - Energy Procedia N2 - A dynamic flat-plate collector model for parametric sensitivity studies on polymer-based collector designs was developed. Validation using experimental results of conventional flat-plate collectors showed satisfying results especially regarding the calculation of individual part temperatures of a collector. The model was used to predict system efficiency as well as individual part temperatures in order to analyse a polymeric collector approach in comparison to a conventional collector. The simulation results showed that the fractional energy savings of systems with conventional flat-plate collectors cannot be reached with the analysed polymeric collector approach. Also the stagnation temperatures of more efficient approaches are too high for low-cost polymeric materials. The exemplary analysis of annual temperature loads of the backside insulation for different approaches proved the necessity of careful collector design aiming at temperature reduction for all individual collector parts. UR - https://doi.org/10.1016/j.egypro.2014.02.023 KW - mathematical model KW - simulation KW - flat-plate collector KW - collector efficiency KW - stagnation temperature KW - polymeric materials Y1 - 2014 UR - https://doi.org/10.1016/j.egypro.2014.02.023 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-23625 SN - 1876-6102 N1 - Part of special issue: "Proceedings of the 2nd International Conference on Solar Heating and Cooling for Buildings and Industry (SHC 2013)" VL - 2014 IS - 48 SP - 181 EP - 191 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Bartl, F. A1 - Dallner, Rudolf A1 - Meyer, W. T1 - Experimentelle und numerische Untersuchung ausgewählter zellularer Werkstoffe bei höheren Dehnraten JF - Materialwissenschaft und Werkstofftechnik T2 - Experimental and numerical investigations of selected cellular solids at higherstrain rates UR - https://doi.org/10.1002/mawe.200500879 KW - zellularer Werkstoff KW - Verbundwerkstoff KW - Dehnratenabhängigkeit KW - FEM KW - Druckversuch KW - cellular solid KW - composite material KW - strain rate effects KW - FEM KW - compression test Y1 - 2005 UR - https://doi.org/10.1002/mawe.200500879 SN - 0933-5137 SN - 1521-4052 VL - 36 IS - 6 SP - 254 EP - 263 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Bauder, Maximilian A1 - Böhm, Klaus A1 - Kubjatko, Tibor A1 - Wech, Lothar A1 - Schweiger, Hans-Georg T1 - C-ITS relevant critical vehicle-to-vehicle accident scenarios for accident analysis JF - Sensors N2 - The relevance of scientific investigations, whether simulative or empirical, is strongly related to the environment used and the scenarios associated with it. Within the field of cooperative intelligent transport systems, use-cases are defined to describe the benefits of applications. This has already been conducted in the available safety-relevant Day 1 applications longitudinal and intersection collision risk warning through the respective technical specifications. However, the relevance of traffic scenarios is always a function of accident severity and frequency of a retrospective consideration of accident databases. In this study, vehicle-to-vehicle scenarios with high frequency and/or severe personal injuries are therefore determined with the help of the CISS database and linked to the use-cases of the safety-relevant Day 1 applications. The relevance of the scenarios thus results on the one hand from the classical parameters of retrospective accident analysis and on the other hand from the coverage by the named vehicle-to-x applications. As a result, accident scenarios with oncoming vehicles are the most relevant scenarios for investigations with cooperative intelligent transport systems. In addition, high coverage of the most critical scenarios within the use-cases of longitudinal and intersection collision risk warning is already apparent. UR - https://doi.org/10.3390/s22093562 KW - cooperative intelligent transportation systems KW - C-ITS KW - V2X KW - accident scenarios KW - accident analysis KW - accident database Y1 - 2022 UR - https://doi.org/10.3390/s22093562 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-23473 SN - 1424-8220 N1 - This article belongs to the Special Issue "Sensors and Systems for Automotive and Road Safety" VL - 22 IS - 9 PB - MDPI CY - Basel ER - TY - JOUR A1 - Müller, Andreas A1 - Bornschlegl, Martin A1 - Mantwill, Frank T1 - Life Cycle Rating: an approach to support the decision-making process of manufacturing systems JF - Procedia Manufacturing N2 - The increasing use of the life cycle costing method in the production industry shows the need of cost reduction on a holistic basis. A monetary product life cycle evaluation for different alternatives supports the decision-making process beyond the initial purchase price. Beside the cost perspective, the reduction of CO2 emissions also becomes an important goal for the industry. Therefore, the life cycle assessment is a concept to evaluate the environmental impact along the product life cycle. In conclusion, the cost and environmental approaches deal with the consequences of decisions. Thus, the production planning department has the task to evaluate both dimensions for manufacturing equipment. However, the implementation of these life cycle approaches is still moving forward slowly due to lack of both information at the decision point, and a practical method to support decision-making. This paper shows a framework for the life cycle rating for manufacturing equipment within the planning phase. The framework supports the decision-making process regarding economic and environmental consequences. UR - https://doi.org/10.1016/j.promfg.2018.02.125 KW - Life cycle rating KW - Life cycle cost KW - Life cycle assessment KW - Planning KW - Decision-making Y1 - 2018 UR - https://doi.org/10.1016/j.promfg.2018.02.125 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-23490 SN - 2351-9789 VL - 2018 IS - 21 SP - 305 EP - 312 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Brigola, Rolf A1 - Singer, Peter T1 - On initial conditions, generalized functions and the Laplace transform JF - Electrical Engineering UR - https://doi.org/10.1007/s00202-009-0110-5 KW - generalized functions KW - initial value problems KW - linear systems KW - Laplace transform KW - Fourier transform Y1 - 2009 UR - https://doi.org/10.1007/s00202-009-0110-5 SN - 1432-0487 N1 - Access provided by Nationallizenz Ebooks Medicine VL - 91 IS - 1 SP - 9 EP - 13 PB - Springer CY - Berlin, Heidelberg ER - TY - JOUR A1 - Bartl, F. A1 - Klaus, H. A1 - Dallner, Rudolf A1 - Huber, O. T1 - Material behaviour of a cellular composite undergoing large deformations JF - International Journal of Impact Engineering UR - https://doi.org/10.1016/j.ijimpeng.2008.11.014 KW - material behaviour KW - cellular composite KW - finite element method KW - large deformation KW - yield surface KW - multiaxial material tests KW - crashbox Y1 - 2008 UR - https://doi.org/10.1016/j.ijimpeng.2008.11.014 SN - 0734-743X VL - 36 IS - 5 SP - 667 EP - 679 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Oberhauser, Simon A1 - Strobl, Christoph A1 - Schreiber, G. A1 - Wuestefeld, Ch. A1 - Rafaja, D. T1 - Formation of periodic patterns in the (Ni,W)/Al diffusion couples JF - Surface and Coatings Technology UR - https://doi.org/10.1016/j.surfcoat.2009.12.027 KW - MOCVD KW - electrodeposition KW - diffusion process KW - periodic patterns KW - (Ni,W)/Al KW - microstructure analysis Y1 - 2010 UR - https://doi.org/10.1016/j.surfcoat.2009.12.027 SN - 0257-8972 VL - 204 IS - 14 SP - 2307 EP - 2315 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Riess, Hermann A1 - Brandmayr, Sebastian A1 - Zörner, Wilfried A1 - Greenough, Richard T1 - Analysis of the mechanical behaviour of an all-round fully adhesive supported absorber JF - Energy Procedia N2 - This paper discusses the mechanical behaviour of an all-round fully adhesive supported absorber. Previous research is discussed and compared to the author's own results collected using both laboratory tests and simulation. The influence of the finite-element approach (i.e. geometrically linear or non-linear) was compared. The thermal deformation of a hyperstatic absorber was investigated. The relationship between thermal expansion and pressure change in a gas-filled collector is discussed. UR - https://doi.org/10.1016/j.egypro.2014.02.025 KW - Solar collector KW - Absorber KW - Thermal expansion KW - Deformation KW - Mechanical stress KW - Hyperstatic KW - Edge bond Y1 - 2014 UR - https://doi.org/10.1016/j.egypro.2014.02.025 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-23744 SN - 1876-6102 N1 - Part of special issue: "Proceedings of the 2nd International Conference on Solar Heating and Cooling for Buildings and Industry (SHC 2013)" VL - 2014 IS - 48 SP - 201 EP - 211 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Schlingensiepen, Jörn T1 - Innovation in Distance, E- And Blended Learning in Educational Mass Production Using Inverted Classroom Model (Icm) JF - Procedia - Social and Behavioral Sciences N2 - Due to cutbacks in universities budgets and growing numbers of students in the industrialized countries and the emerging economies lecturers often are facing the problem teaching huge numbers of students, which causes a lack of supervision and personal support. This so called educational mass production is lamented by both students and lecturers. This field report gives an overview on the authors experience while developing and testing an E-Prototype of a Distance Learning system that was developed on the basis of the course room and learning content management system Moodle and tested during winter semester 2012/13 at the University of Applied Science Ingolstadt (today Technische Hochschule Ingolstadt). The set up followed the methodology of Inverted Class Room Model and was tested with two student groups (part time students and regular students). In total 440 students, four tutors and four professors were involved in this test case. UR - https://doi.org/10.1016/j.sbspro.2014.05.069 KW - Innovation KW - inverted classroom model KW - distance learning KW - e-learning KW - blended learning Y1 - 2014 UR - https://doi.org/10.1016/j.sbspro.2014.05.069 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-23753 SN - 1877-0428 VL - 2014 IS - 141 SP - 393 EP - 398 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Schlingensiepen, Jörn A1 - Naroska, E. A1 - Bolten, T. A1 - Christen, O. A1 - Schmitz, S. A1 - Ressel, C. T1 - Empowering people with disabilities using urban public transport JF - Procedia Manufacturing N2 - Today's public transport is not easy to use by people that are physically impaired or suffering from mental problems. Traffic planning today is driven by online time tables calculating the optimal way to use public transport in terms of time and costs. Unfortunately, this is not suitable for a group of travelers having constraints in using vehicles, vehicle types or particular stations for health reasons. One the other hand, since most of those people are not able to drive a car on their own, making public transport available to them is a key to improve their mobility and their quality of life in general. This paper shows an approach developed within the project “mobile” funded by The German Federal Ministry of economy and energy (BMWi) that supports this kind of users while traveling by public transport. Moreover, the system takes their personal constraints into account and provides them with timely information about their trip. To this end, several supporting gadgets and a system that matches property of vehicles, stations with personal attributes of mentioned travelers are developed. This system provides the user with personalized and localized advices during travel and while travel planning. This is implemented by generation of a second graph representing the public transport network not in dimension of time and costs but in preferences and dislike of a given traveler. This second graph is an overlay to the standard graph to get a personalized graph that allows finding a suitable route respecting the constraints of the user. UR - https://doi.org/10.1016/j.promfg.2015.07.382 KW - urban public tansport KW - disabled people KW - navigation for public transport Y1 - 2015 UR - https://doi.org/10.1016/j.promfg.2015.07.382 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-23983 SN - 2351-9789 N1 - Part of special issue: "6th International Conference on Applied Human Factors and Ergonomics (AHFE 2015) and the Affiliated Conferences, AHFE 2015" VL - 2015 IS - 3 SP - 2349 EP - 2356 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Soal, Keith A1 - Govers, Yves A1 - Bienert, Jörg A1 - Bekker, Anriette T1 - System identification and tracking using a statistical model and a Kalman filter JF - Mechanical Systems and Signal Processing UR - https://doi.org/10.1016/j.ymssp.2019.05.011 KW - System identification KW - Operational Modal Analysis KW - Ship structures KW - Multivariate statistics KW - Kalman filter KW - Automated modal parameter selection Y1 - 2019 UR - https://doi.org/10.1016/j.ymssp.2019.05.011 SN - 0888-3270 VL - 2019 IS - 133 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Rochat, Ludovic A1 - Burger, Uli T1 - Aspects of damage tolerance and fatigue of CFRP structural components JF - SAE International Journal of Aerospace UR - https://doi.org/10.4271/2015-01-2596 KW - fuel consumption KW - design processes KW - composite materials KW - helicopters KW - fibers KW - lightweighting KW - fatigue KW - mobility KW - plastics Y1 - 2015 UR - https://doi.org/10.4271/2015-01-2596 SN - 1946-3855 SN - 1946-3901 VL - 8 IS - 2 SP - 292 EP - 302 PB - SAE CY - Warrendale ER - TY - JOUR A1 - Müller, Holger A1 - Brandmayr, Sebastian A1 - Zörner, Wilfried T1 - Development of an evaluation methodology for the potential of solar-thermal energy use in the food industry JF - Energy Procedia N2 - The research project ‘Solar Heat in the Liquid Food Industry’ (part of the FORETA Research Network) focused on the development and optimisation of low-temperature heating systems for the liquid food industry. Its main objectives are in energy efficiency, waste heat recovery and the feasibility of a solar-thermal process heating system. Based on the particular simulation results the overall solar-thermal potentials for German breweries and dairies were determined. In this connection a literature review indicated that most of the potential studies on solar-thermal energy use in the industry or related to specific industrial sectors are based on the total use of low-temperature heat. In opposition to these results, the available and mainly limited roof area was found to be a more important aspect for the solar-thermal potential. Hence, the development of a methodology for a site- specific analysis was necessary. The interconnection of only a few defined evaluation criteria resulted in a more realistic estimation of the potential for a solar-thermal heat supply. UR - https://doi.org/10.1016/j.egypro.2014.02.135 KW - solar-thermal process heat KW - solar-thermal potential KW - food industry Y1 - 2014 UR - https://doi.org/10.1016/j.egypro.2014.02.135 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-23955 SN - 1876-6102 N1 - Part of special issue: "Proceedings of the 2nd International Conference on Solar Heating and Cooling for Buildings and Industry (SHC 2013)" VL - 214 IS - 48 SP - 1194 EP - 1201 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Schlingensiepen, Jörn T1 - Competence Driven Methodology for Curriculum Development based on Requirement Engineering JF - Procedia - Social and Behavioral Sciences N2 - Developing a study program always leads to target conflicts of the different stake holders industry, students, state resp. politics and universities. Unfortunately today a lot of new study courses are developed by mixing existing courses (e.g. industrial and commercial engineering or commercial information technology) or adjusting existing courses (e.g. technology of sustainable energy formed from mechanical and process engineering or environmental engineering formed from civil engineering). In most cases universities try to keep their well-known infrastructure and lecture courses based on the expertise of the current staff while using attractive short term hypes to make their course offer more attractive. Since this leads to frustration for the students expecting different content and may not fulfil the expectations from industry; we developed a new approach focussed on skills and competences in RiFLE project. This paper gives an overview how this approach works and how it was used while developing a master program (MSc in Rail Freight and Logistics). UR - https://doi.org/10.1016/j.sbspro.2014.05.206 KW - Education KW - MSc KW - Rail Freight and Logistics KW - Curriculum KW - Innovation Y1 - 2014 UR - https://doi.org/10.1016/j.sbspro.2014.05.206 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-23777 SN - 1877-0428 VL - 2014 IS - 141 SP - 1203 EP - 1207 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Hasler, Ewald A1 - Huber, Christian A1 - Leindecker, Herbert C. A1 - Schrag, Tobias A1 - Stocker, Emanuel A1 - Wartha, Christian T1 - Bewertung unterschiedlicher Fassadenkonstruktionen unter Lebenszyklusaspekten mit einer Fallstudie Bürogebäude JF - Bauphysik UR - https://doi.org/10.1002/bapi.201310072 Y1 - 2013 UR - https://doi.org/10.1002/bapi.201310072 SN - 1437-0980 VL - 35 IS - 4 SP - 250 EP - 256 PB - Ernst & Sohn CY - Berlin ER - TY - JOUR A1 - Bauder, Maximilian A1 - Lecheler, Katrin A1 - Wech, Lothar A1 - Böhm, Klaus A1 - Paula, Daniel A1 - Schweiger, Hans-Georg T1 - Determination of accident scenarios via freely available accident databases JF - Open Engineering N2 - The derivation of real accident scenarios from accident databases represents an important task within vehicle safety research. Simulations are increasingly used for this purpose. Depending on the research interest, a wide range of accident databases exists worldwide, which differ mainly in the number of recorded data per accident and availability. This work aims to identify critical vehicle-to-vehicle accidents based on freely available accident databases to derive concrete scenarios for a subsequent simulation. For this purpose, the method of the pre-crash matrix is applied using the example of the freely available Crash Investigation Sampling System database of the National Highway Traffic Safety Administration. An analysis of existing databases worldwide shows that this is the most detailed, freely available database. The derivation of scenarios succeeds here by a new method, whereby a center of gravity calculation is carried out based on the damages of the vehicles according to Collision Deformation Classification nomenclature. In addition, the determination of other necessary parameters, as well as the limits of the database, is shown in order to derive a scenario that can be simulated. As a result, the constellations of the five most frequent vehicle-to-vehicle accident scenarios according to the Crash Investigation Sampling System database are presented. In particular, other institutions should follow National Highway Traffic Safety Administration’s example and make data freely available for accident research. UR - https://doi.org/10.1515/eng-2022-0047 KW - accident databases KW - accident scenarios KW - vehicle-to-vehicle accidents KW - Pre-Crash-Matrix KW - Crash Investigation Sampling System Y1 - 2022 UR - https://doi.org/10.1515/eng-2022-0047 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-25137 SN - 2391-5439 VL - 12 IS - 1 SP - 453 EP - 467 PB - De Gruyter CY - Berlin ER - TY - CHAP A1 - Bienert, Jörg T1 - Determination of the Windnoise Contribution from Vehicle Noise Measurements on Roads T2 - Euronoise2018 Proceedings KW - Acoustics Y1 - 2018 UR - https://www.euronoise2018.eu/index.php/component/contentbuilder/details/11/148/euronoise-2018-11-measurement-techniques?Itemid=256&start=0 SN - 2226-5147 SP - 745 EP - 750 PB - EAA CY - [s. l.] ER - TY - CHAP A1 - Ganesan, Krishna A1 - Bienert, Jörg A1 - Zhao, Xiaojing T1 - Psychoacoustic Assessment of Noise under a Motorcycle Helmet T2 - Tagungsband, DAGA 2021 - 47. Jahrestagung für Akustik, 15.-18. August 2021, Wien und online KW - motorcycle helmet Y1 - 2021 UR - https://pub.dega-akustik.de/DAGA_2021/data/index.html SN - 978-3-939296-18-8 SP - 413 EP - 416 PB - Deutsche Gesellschaft für Akustik e.V. (DEGA) CY - Berlin ER - TY - CHAP A1 - Bienert, Jörg A1 - Krehl, Karola A1 - Yerramada, Mamatha T1 - Akustische Bewertung von Motorradhelmen T2 - Tagungsband, DAGA 2018 - 44. Jahrestagung für Akustik, 19.-22. März 2018, München KW - Lärm KW - Motorradhelm Y1 - 2018 UR - https://pub.dega-akustik.de/DAGA_2018/data/index.html SN - 978-3-939296-13-3 SP - 785 EP - 788 PB - Deutsche Gesellschaft für Akustik e.V. (DEGA) CY - Berlin ER - TY - CHAP A1 - Gulden, Florian A1 - Stich, Anton A1 - Gramstat, Sebastian A1 - Höppel, Heinz Werner A1 - Tetzlaff, Ulrich T1 - Investigations of the third body using pin-on-disc and brake dynamometer on all-MMC brake rotors T2 - EuroBrake 2018 Conference Proceedings Y1 - 2018 SN - 978-1-5108-7963-8 SP - 401 EP - 407 PB - FISITA CY - Bishops Stortford ER - TY - CHAP A1 - Saidi, Abdessamad A1 - Conti, Fosca A1 - Karl, Jürgen A1 - Goldbrunner, Markus ED - Thrän, Daniela ED - Pfeiffer, Diana T1 - Biogastankstelle für die Landwirtschaft – Gegenüberstellende ökonomische Bewertung unterschiedlicher Verfahren für die dezentrale partielle Biogasaufbereitung T2 - 8. Statuskonferenz Bioenergie Reader Y1 - 2019 UR - https://www.energetische-biomassenutzung.de/veranstaltungen/statuskonferenzen/8-statuskonferenz/programm SN - 978-3-946629-27-6 SN - 2698-6809 SP - 78 EP - 79 PB - DBFZ Deutsches Biomasseforschungszentrum gemeinnützige GmbH CY - Leipzig ER - TY - CHAP A1 - Conti, Fosca A1 - Saidi, Abdessamad A1 - Goldbrunner, Markus ED - Thrän, Daniela ED - Pfeiffer, Diana T1 - Verbesserung der Durchmischung in Biogasfermentern T2 - 8. Statuskonferenz Bioenergie Reader Y1 - 2019 UR - https://www.energetische-biomassenutzung.de/veranstaltungen/statuskonferenzen/8-statuskonferenz/programm SN - 978-3-946629-27-6 SN - 2698-6809 SP - 105 PB - DBFZ Deutsches Biomasseforschungszentrum gemeinnützige GmbH CY - Leipzig ER - TY - JOUR A1 - Wiedemann, Leonhard A1 - Conti, Fosca A1 - Saidi, Abdessamad A1 - Sonnleitner, Matthias A1 - Goldbrunner, Markus T1 - Modeling Mixing in Anaerobic Digesters with Computational Fluid Dynamics Validated by Experiments JF - Chemical Engineering & Technology UR - https://doi.org/10.1002/ceat.201800083 KW - Anaerobic digesters KW - Biomass KW - Computational fluid dynamics KW - Mixing KW - Rheology Y1 - 2018 UR - https://doi.org/10.1002/ceat.201800083 SN - 1521-4125 VL - 41 IS - 11 SP - 2101 EP - 2110 PB - Wiley CY - Weinheim ER - TY - CHAP A1 - Conti, Fosca A1 - Wiedemann, Leonhard A1 - Saidi, Abdessamad A1 - Sonnleitner, Matthias A1 - Goldbrunner, Markus T1 - Mixing of a Model Substrate in a Scale-down Laboratory Digester and Processing with a Computational Fluid Dynamics Model T2 - EUBCE 2018 Online Conference Proceedings UR - https://doi.org/10.5071/26thEUBCE2018-2CV.5.34 KW - anaerobic digestion KW - biomass KW - cellulose KW - laboratory digester KW - mixing process KW - fluid dynamic Y1 - 2018 UR - https://doi.org/10.5071/26thEUBCE2018-2CV.5.34 SN - 978-88-89407-18-9 SN - 2282-5819 SP - 811 EP - 815 PB - ETA s.r.l. CY - Florenz ER - TY - JOUR A1 - Conti, Fosca A1 - Wiedemann, Leonhard A1 - Sonnleitner, Matthias A1 - Saidi, Abdessamad A1 - Goldbrunner, Markus T1 - Monitoring the mixing of an artificial model substrate in a scale-down laboratory digester JF - Renewable Energy UR - https://doi.org/10.1016/j.renene.2018.08.013 KW - Laboratory digester KW - Anaerobic digestion KW - Artificial chemical substrate KW - Mixing KW - Particle image velocimetry (PIV) KW - Acoustic Doppler velocimetry (ADV) Computational fluid dynamics (CFD) Y1 - 2018 UR - https://doi.org/10.1016/j.renene.2018.08.013 SN - 0960-1481 VL - 2019 IS - 132 SP - 351 EP - 362 PB - Elsevier CY - Amsterdam ER - TY - BOOK ED - Hecht, Dirk T1 - Modernes Cost Engineering und Value Management BT - Grundlagen und Umsetzung in der Praxis T3 - Strategisches Beschaffungsmanagement KW - Beschaffung KW - Strategisches Management KW - Lieferantenbeurteilung KW - Wertorientiertes Management KW - Kostenmanagement Y1 - 2019 SN - 978-3-947208-15-9 PB - uni-edition CY - Berlin ER -