@article{KellnerUtz, author = {Kellner, Florian and Utz, Sebastian}, title = {An inverse optimization approach for studying sustainability preferences in sourcing decisions}, series = {Journal of Cleaner Production}, volume = {483}, journal = {Journal of Cleaner Production}, publisher = {Elsevier}, doi = {10.1016/j.jclepro.2024.144305}, abstract = {Throughout many societies around the globe, there is growing awareness of the urgent need for the transition towards a sustainable economy. Research shows that buying firms have substantial leverage to initiate sustainable development by controlling the sustainable performance of their suppliers. In that context, this article presents a novel methodology based on inverse optimization to derive the implicit preferences of decision-makers in the trade-off between traditional sourcing objectives and sustainability in the supplier selection and order allocation process. The derived implicit preferences can then be used for further analyses to gain a better understanding of the characteristics of purchasing managers and sourcing situations that come with particularly high/low preferences placed on sustainability. Since the inverse optimization approach is computationally resource-intensive and consumes a significant amount of time, we present a scalable state-of-the-art cloud architecture that allows solving an arbitrary number of optimization programs in an acceptable amount of time. We demonstrate the feasibility of the proposed methodology in a real-world case. In doing so, we test how important sustainability aspects are in the supplier selection and order allocation decisions of one of the world's largest automotive parts manufacturers.}, language = {en} } @article{TeranGilmoreRoeslinTapiaHernandezetal., author = {Ter{\´a}n-Gilmore, Amador and Roeslin, Samuel and Tapia-Hern{\´a}ndez, Edgar and Cuadros-Hip{\´o}lito, Edgar}, title = {Displacement-based design of tall earthquake-resistant diagrid systems}, series = {Journal of Building Engineering}, volume = {35}, journal = {Journal of Building Engineering}, publisher = {Elsevier}, doi = {10.1016/j.jobe.2020.102022}, abstract = {In recent years, the system known as diagrid (diagonal grid) has been used in several tall buildings around the world. Despite the large advantages that the innovative structural system represents in terms of sustainability, its use has not been sufficiently studied for high seismicity zones. This paper develops a displacement-based methodology for the conception and preliminary performance-based seismic design of perimeter diagrid systems. The methodology applies to tall buildings, whose dynamic response is significantly influenced by global flexural drift deformations. The methodology is exemplified by the preliminary design of a 24-story building located in the soft soil condition of Mexico City. The paper provides some detailed background behind the performance-based design and highlights the benefit of simple, reasonable, and safe structural estimations in terms of the monetary and environmental cost. It is concluded first, that the proposed methodology yields diagonal grid systems that adequately satisfy predefined deterministic performance levels; and second, that a perimeter diagonal grid system is an attractive structural option for tall buildings located in high seismicity zones.}, language = {en} } @article{TerbrackFrankHerrmannetal., author = {Terbrack, Hajo and Frank, Ingo and Herrmann, Frank and Claus, Thorsten and Trost, Marco and G{\"o}tz, Matthias}, title = {A literature database on ecological sustainability in hierarchical production planning}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik}, number = {12}, publisher = {AKWI}, issn = {2296-4592}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-23539}, pages = {36 -- 40}, abstract = {This article describes a systematic literature search of research articles on the topics of ecological sustainability and production planning. Over 900 research articles deal intensively with these topics. These articles were catalogued and included in a database. They can be evaluated with an analysis tool, developed by the research group. The tool is available free of charge via a website of the research group.}, language = {en} } @inproceedings{TrostForstnerClausetal., author = {Trost, Marco and Forstner, Robert and Claus, Thorsten and Herrmann, Frank and Frank, Ingo and Terbrack, Hajo}, title = {Sustainable Production Planning and Control: A Systematic Literature Review}, series = {Proceedings of the 33th European Conference on Modelling and Simulation 2019 (ECMS), Caserta, Italy}, volume = {33,1}, booktitle = {Proceedings of the 33th European Conference on Modelling and Simulation 2019 (ECMS), Caserta, Italy}, doi = {10.7148/2019}, pages = {303 -- 309}, abstract = {This article reviews the state of the art in research regarding sustainable extensions of hierarchical production planning. Sustainability is currently of considerable importance due to various interest groups. Hierarchical operational production planning and control is the state of the art in research as well as in industrial practice for planning of stations and their aggregations to production systems. Thus, it might be highly relevant to improve sustainability. In the literature mainly the scheduling level as well as the ecological dimension are considered. So the current research is limited to selected partial planning problems and incomplete with regard to sustainable aspects that emerge.}, subject = {Produktionsplanung}, language = {en} } @inproceedings{TrostClausHerrmann, author = {Trost, Marco and Claus, Thorsten and Herrmann, Frank}, title = {Adapted Master Production Scheduling: Potential for Improving Human Working Conditions}, series = {Proceedings of the 33th European Conference on Modelling and Simulation 2019 (ECMS), Caserta, Italy}, volume = {33,1}, booktitle = {Proceedings of the 33th European Conference on Modelling and Simulation 2019 (ECMS), Caserta, Italy}, doi = {10.7148/2019}, pages = {310 -- 316}, abstract = {This article illustrates the problem of deficient working conditions like high work intensity and underlines the possibilities of production planning and control to improve them. However, an included literature search presents that previous approaches have predominantly considered social aspects within a short planning horizon and that there is a need for a long-term consideration. To address this research gap a linear optimization model for Master Production Scheduling is presented, which has been extended by basic aspects of personnel requirements planning and a control of personnel work intensity. The results show that improvements in working conditions can be achieved through adapted production planning without an automatically increase in costs. However , challenges in quantifying the corresponding social correlations are identified as well.}, subject = {Produktionsplanung}, language = {en} }