Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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  • Publication
    Digital Twin
    ( 2019)
    Stark, Rainer
    ;
    Damerau, Thomas
    Definition: A digital twin is a digital representation of an active unique product (real device, object, machine, service, or intangible asset) or unique product-service system (a system consisting of a product and a related service) that comprises its selected characteristics, properties, conditions, and behaviors by means of models, information, and data within a single or even across multiple life cycle phases. Theory and Application: The term digital twin (DT) was coined by Vickers and introduced as ""Mirrored Spaces Model"" concept by Grieves in the first executive Product Lifecycle Management courses at the University of Michigan in 2002 (Grieves 2005, 2014, 2016). The concept of the DT has historically evolved from the aerospace industry and has since then been translated into many areas. This may also be a cause for the fact that there is no uniform accepted scientific definition of the term, yet. Nevertheless, the subject was researched intensively during...
  • Publication
    Implementation of an Energy Metering System for Smart Production
    ( 2019)
    Halstenberg, Friedrich A.
    ;
    Lindow, Kai
    ;
    Stark, Rainer
    Digitization is consecutively changing more and more areas of human living. Many products are designed increasingly ""smart"" and connected to their environment. Not only products but also the necessary production facilities and systems are subject to digital change. The goal is to achieve a wide range of improvements and increase the efficiency and flexibility of the interlinked production systems. In Industry 4.0, important production parameters are measured and monitored with the help of sensors. Based on analyses of those data, adjustments and improvements of the production system can be performed. This paper presents the concept and physical implementation of an advanced energy metering system on a factory demonstrator, the so-called SmartFactory 4.0. It produces beverage coasters, which can be designed freely by the customer in shape, material and colour and is produced directly or remotely through a web application. The SmartFactory 4.0 consists of three production modules, which are connected to one another by means of media and information technology. The advanced energy metering system is designed in order to measure and monitor energy consumptions in various production steps. Those data are compared to previous simulations. Steps for the improvement of the energy efficiency of the SmartFactory 4.0 are derived. This paper presents first test results from the application of the system. For different individualized gravures and two different colours (green and orange) with various depths of the produced beverage coaster, energy consumptions of the production have been metered over time. The measured data are analysed and evaluated, and suitable steps for improvement are given. Finally, this research provides suggestions for scaling the energy metering system to larger production systems, and a systematic procedure for implementation is given. This research constitutes one step in the direction of utilizing the concept of the digital factory twin for the improvement of energy efficiency and sustainability of production systems.
  • Publication
    Maintenance, repair and overhaul in through-life engineering services
    ( 2015)
    Uhlmann, Eckart
    ;
    Stark, Rainer
    ;
    Rethmeier, Michael
    ;
    Baumgarten, Jeannette
    ;
    Bilz, Martin
    ;
    Geister, Claudio
    ;
    Graf, Benjamin
    ;
    Gumenyuk, Andrey
    ;
    Grosser, Hendrik
    ;
    Heitmüller, Florian
    ;
    Manthei, Marcel
    ;
    Reinkober, Sascha
    Maintenance, Repair and Overhaul (MRO) is acquiring increasing commercial and socio-economic significance. For products and goods with high investment costs and a long lifespan, especially in the sectors of energy and transportation, a considerable portion of commercial profits are generated by after-sales services. In the field of research and development, not enough attention has been paid so far to tasks and approaches involving MRO. The field thus has a limited scientific background, despite a high potential in the business sector for technological and scientific optimization. The challenges and chances of MRO for sustainable enterprises will be explained with reference to the Fraunhofer Innovation Cluster Maintenance, Repair and Overhaul in Energy and Transport. The developments and project results of the four fields of innovation »Cleaning«, »Repair and Overhaul«, »Condition Monitoring and Diagnosis«, as well as »MRO Planning and Digital Assistance« will be explained.