Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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Model based, modular configuration of cyber physical systems for the information management on shop-floor

2018 , Jaekel, F.-W. , Torka, J. , Eppelein, M. , Schliephack, W. , Knothe, T.

Many of the current manufacturing systems are still implemented as sequential inflexible production lines. This creates difficulties to fulfil the customer request for customized products. The production of customized products is accompanied by major changes in the production infrastructure. To support more flexible production, the sequential production lines nowadays start to change to workshop production. In that case all production systems will be grouped by their tasks, e.g. all drilling machines are located in the same place. A manufacturing system stands for the different involved hardware and software components at the manufacturing process. Each manufacturing system is connected with the help of the shop-floor IT. The term shop-floor indicates the productive area of a factory and includes the operative work. Shop-floor IT includes the information processes and IT solutions that control, secure and record product activities. Therefore the shop-floor IT supports d irectly the execution on field level. The model based view of a production process simplifies the understanding of the product lifecycle and planning. To optimize and speed up building and changing of product processes, the modular shop-floor IT has been developed by technologies derived from cyber physical systems and internet of things. However, interoperability issues such as different implementation of controls and process variations are a major challenge.

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Wege in die Zukunft der Produktion. Ganzheitliche Mitarbeitereinbindung als Befähiger für die Transformation zur Industrie 4.0

2017 , Knothe, T. , Ullrich, A. , Weinert, N.

Die Transformation in die ""intelligente"" und vernetzte Fabrik der Zukunft folgt einem schrittweise iterativ ablaufenden Prozess. Besonderer Wert ist dabei auf die schnelle Realisierung von Prototypen und einzelnen Maßnahmen zu legen, um rasch Ergebnisse zu erzielen. Gefördert wird mit diesem Vorgehen nicht zuletzt auch das Verständnis und die Partizipationsbereitschaft der beteiligten Mitarbeiter, die somit früher in konkrete Entwicklungen eingebunden werden und diese mitgestalten können. Das Projekt ""MetamoFAB"" hat Methoden sowie Hilfsmittel entwickelt, die beim Planen und Umsetzen der Transformation unterstützen. Diese wurden zudem exemplarisch in Fallbeispielen erprobt.

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Conceptualizing a network process model based production platform

2015 , Knothe, T. , Zoch, A. , Meißner, M.

First tier system suppliers play a key role in every economy. However, in a lot of European regions there is a lack of these kinds of business players even though OEM production is established, mostly due to political reasons. Based on nearly 25 years of experience in supplier network research, this paper proposes a model based platform that can support the establishment of a supplier based system through a network of SMEs. This platform streamlines requirements, orders and tasks and provides the ability to utilize a networkâs collective production capabilities more efficiently to comply with complex OEM system product requirements and remain competitive in a global market space. An underlying network process model allows for an efficient and flexible alignment of interfaces between network participants while a competence mapping helps allocating automatically fragmented production tasks to producers based on available production capacity and technological resources.

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Modellbasierte Prozess- und Systemgestaltung für die Innovationsbeschleunigung

2011 , Damerau, T. , Kaufmann, U. , Knothe, T. , Stark, R. , Ulbrich, A.

Modelbased Process and Systems Modelling to accelerate innovation management - Joint research project ISYPROM. The main objective of the ISYPROM project was the tighter integration between virtual product creation and enterprise/ business process modelling to support a holistic view and optimization of product development and innovation processes. In support of this objective the project focused on the implementation of more formalised, model-based and therefore computer interpretable representations of products and their corresponding product development processes with the overlaying enterprise and business processes.

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Evaluation Model for the Derivation of a Sustainable Digitisation Strategy

2018 , Knothe, T. , Oertwig, N. , Obenaus, M. , Butschek, P.

Manufacturing companies today often consider digital transformation more as a challenge than an opportunity. Specific solutions for individual projects are often available. The diversity of engineering disciplines in an enterprise structure ultimately make it difficult for companies to derive and sustainably implement an integrated digitisation strategy. This is mainly driven to the fact that the existing approaches and concepts for developing digitisation strategies are exceedingly technology oriented and at the same time too complex for their application. In order to be able to derive an integrated transformation roadmap on the strategic level, evaluation methods are required that allow a quick and simple classification. The initial state for pointing out the chances of change within the scope of digitisation has to be addressed as well as the target state. This contribution will explore the capabilities of an assessment concept that supports an efficient and integrated handling of the core elements for a prosperous digitisation strategy.

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Planning and control of maintenance, repair and overhaul operations of a fleet of complex transportation systems: A cyber-physical system approach

2015 , Trentesaux, D. , Knothe, T. , Branger, G. , Fischer, K.

In this paper a new architecture named CPS4MRO, that goes a step further previous research development and industry-oriented projects led by the authors, is specified. The aim is to provide in the near future an optimized planning and control of MRO operations of a fleet of complex transportation systems using the paradigm of Cyber-Physical Systems.

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A competence-based industrial learning approach for factories of the future

2013 , Kiritsis, D. , Bufardi, A. , Mavrikios, D. , Knothe, T. , Szigeti, H. , Majumdar, A.

Manufacturing industry can improve its competitiveness through innovation and technological excellence, and appropriate Industrial Learning can help to achieve this goal through allowing the manufacturing workforce to acquire new skills related to the advanced developments in information and communication technologies. This raises the need for new Industrial Learning tools and methods from the viewpoint of learning content, learning processes, and delivery mechanisms. In this paper, we present a generic competence-based approach for Industrial Learning developed in the framework of ActionPlanT project. The approach is composed of (i) an Industrial Learning model which serves to represent and understand competence-based learning, and (ii) a methodology which implements through a number of steps the Industrial Learning actions defined using the Industrial Learning model in industrial organisations. Both the model and the methodology are presented in details. A metrics-based method for evaluating the implementation of the learning actions defined using the approach is also described.

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Sustainability in model-based planning and control of global value creation networks

2017 , Oertwig, N. , Jochem, R. , Knothe, T.

Manufacturing companies are affected by an increasing complexity driven thru fast changing requirements in the global market. To meet the large catalogue of requirements, enterprises are forming global value creation networks and provide services jointly. The existing time pressure and the involvement of many stakeholders results in a demand of methods and tools for a quick configuration of such networks. Beside the management of material, information and money flows the quest of a sustainable corporate development poses a further challenge for the decision makers. The consideration of sustainability in business process management is one approach to take also social, economic and environmental aspects within global value creation networks into account. Reviewing existing modelling techniques shows that the requirements for a fast configuration and an adequate management of sustainability are just insufficiently addressed or are raising the complexity further. This paper will explore capabilities of an enterprise modelling technique which supports an integrated handling of network configuration and sustainability management in a fast and efficient manner.

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Auftragsindividuelle Fertigungsprozesse im Griff

2015 , Knothe, T. , Oertwig, Nicole , Strohmeier, K. , Reinkober, Sascha

Vor immer mehr Fertigungsunternehmen steht die Aufgabe, in Losgröße 1 zu produzieren und dafür zahlreiche interne Prozesse entsprechend spezieller Kundenforderungen zu gestalten. Um dabei die Wirtschaftlichkeit zu sichern, brauchen die Unternehmen flexible Produktionsanlagen sowie ein flexibles Prozessnetz, die sich an die Herstellung immer neuer Produkte oder Produktvarianten anpassen lassen. Das Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK (Berlin) hat mit seinem Industry Cockpit ein Lösungspaket entwickelt, das Industrieunternehmen hilft, die komplexen Abläufe in der Fertigung schnell zu überblicken und individuell an Aufträge anzupassen. Das Industry Cockpit entstand in Kooperation mit Pickert & Partner (Karlsruhe), einem Hersteller von Software für Qualitätsmanagement (CAQ), Produktionsmanagement (MES) und Traceability (Rückverfolgbarkeit). Es kombiniert Prozessmanagement und MES zu einer dynamischen, ganzheitlichen und kontextsensitiven Monitoring-Umgebung. So liefert es jederzeit eine exakte Übersicht über die Gesamtsituation des Betriebes und sichert die zuverlässige und flexible Steuerung einer intelligenten, vernetzten Produktion. Grundlage des Systems ist die Verknüpfung von Menschen, Produkten, Maschinen, Informationssystemen und Betriebsorganisation auf Basis eines Unternehmensmodells. Wird ein flexibel gesteuertes Prozessnetzwerk mit einem anpassungsfähigen Maschinenpark kombiniert, wird im Unternehmen die Erfüllung von Kundenwünschen bis hin zum zertifizierten Unikat möglich. Da Werkzeugmaschinen sich jedoch oftmals als zu unflexibel erweisen, treibt das IPK die Qualifizierung von Bearbeitungsrobotern voran. Hier geht es vor allem um die Sicherung der notwendigen Fertigungsgenauigkeit.

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A competence-based industrial learning approach for factories of the future: A Result of the FP7-FoF Project ActionPlan T

2012 , Kiritsis, D. , Bufardi, A. , Mavrikios, D. , Knothe, T. , Szigeti, H. , Majumdar, A.

In this paper we propose a generic competence-based approach for Industrial Learning. The approach is composed of (i) an Industrial Learning model which serves to represent and understand competence-based learning, and (ii) a methodology which implements through a number of steps the Industrial Learning actions defined using the Industrial Learning model in industrial organisations. Both the model and the methodology are presented in details. A metrics-based method for evaluating the implementation of the approach is also described.

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