Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

Filters

4 1
Reset filters

Settings
Now showing 1 - 5 of 5
No Thumbnail Available
Publication

Simulation of sustainability aspects within the industrial environment and their implication on the simulation technique

2010 , Rabe, M. , Jäkel, F.-W. , Weinaug, H.

Simulation is a broadly excepted analytic instrument and planning tool. Today, industrial simulation is mainly applied for engineering and physical purposes and covers a short time horizon compared to intergenerational justice. In parallel, sustainability is gaining more importance for the industrial planning because themes like global warming, child labour, and compliance with social and environmental standards have to be taken into account. Sustainability is characterized by comprehensively examining the three dimensions economy, ecology and social questions as well as their long-term perspective. Adequate indicators and an adaptation of simulation methods and procedures are necessary to evaluate the sustainability of industrial processes. A further challenge is the consideration of sust ainability effects coming from the usual manufacturing process structure of a value creation network, in particular from cross-company cooperation and geographically distributed production. This article analyses the implications of those advanced tasks on the simulation technique and their application and proposes a conceptual framework for the simulation of such networks, which differentiates the effects of sustainability by the level of decision making within enterprises.

View
No Thumbnail Available
Publication

Hierarchical modelling of production systems

1992 , Bergmann, M. , Mertins, K. , Rabe, M.

Modern simulation systems enable modelling of large an production systems. To achieve an adequate model struc hierarchical modelling is absolutely necessary. These to be available for all model elements, describing mac layout. The authors have developed a method of hierarc for system structure, process plans and product input. hierarchical model can be simulated, from a single lea up to the complete model. Within the corresponding too check and binding across the hierarchical levels are e automatically. In case of contradictions, rules decide appropriate informations taken from the submodels. across the hierarchical levels are executed automatically. In case of contradictions, rules decide about the appropriate informations taken from the submodels.

View
No Thumbnail Available
Publication

Austauschbarkeit und Kopplung von Modellen

2000 , Angele, S. , Rabe, M. , Scholz, I. , Schulze, T. , Straßburger, S.

Es existiert eine Vielzahl an Referenzmodellen im Bereich Simulation in Produktion und Logistik, deren Kernkompetenzen in unterschiedlichen Bereichen bzw. Einsatzgebieten liegen. Die in den derzeit vorhandenen Referenzmodellen behandelten Anwendungsgebiete sind paarweise nicht disjunkt (d.h. sie können sich in bestimmten Teilen überschneiden). Dies führt zu zweierlei gleichermaßen unbefriedigenden Folgen in der Praxis: (I.) Es wird auf den Einsatz von Referenzmodellen gänzlich verzichtet, da der Modellierer erkennt, dass keiner der angebotenen Ansätze seinen Problembereich adäquat abdeckt oder (II.) der Modellierer wählt entsprechend seines Kenntnisstandes einen Referenzmodellansatz aus und ist gezwungen "an den Rändern" die Inhalte, die von angrenzenden bzw. verfeinernden Referenzmodellen abgedeckt werden könnten, in der Modellierungsumgebung des gewählten Ansatzes selber zu ergänzen. Um die Lücke, die sich aus dem Fehlen eines verbindlichen Standards für die Modellierung von Prozessen ergibt, zumindest überbrücken zu können, sind in den letzten Jahren sowohl methodische als auch technische Ansätze für den Austausch und die Kopplung von Simulationsmodellen entwickelt worden. Ziel des Beitrags ist es, dem Leser eine Einführung in die Grundlagen und Möglichkeiten des Themenkomplexes Austauschbarkeit und Kopplung von Modellen zu geben.

View
No Thumbnail Available
Publication

Modellierung von Informations- und Materialflüssen für die Auslegungsplanung

1990 , Spur, G. , Wieneke-Toutaoui, B. , Rabe, M. , Mertins, K.

Modelling information and materials flow for layout planning. Typical of modern production systems is the growing number of production variations, the increasing degree of automation, and the integration of materials and information flow. More and more solution alternatives have to be developed and evaluated. The demands placed on the system often change. For this reason, a modelling system was developed whose function is described in this article.

View
No Thumbnail Available
Publication

Factory planning using integrated information and material flow simulation

1994 , Mertins, K. , Rabe, M. , Jochem, R.

Planning and optimization of factories is a complex task. Information flow and material flow have to be studied in an integrative way in order to achieve highest quality standards of planning results. With the help of computer aided methods the authors suggest planning support by an enterprise specific reference model for the development of an information flow concept and by a material flow model for the development of a logistics concept. As information and material flow will influence each other very intensively, these models should base on a common kernel, which is described with the same modelling approach. The authors propose an Integrated Enterprise Modelling (IEM) method, which uses the object oriented modelling approach. Main features are the close relation between functions and data of an object (encapsulation), inheritance, and the class concept. With MO2GO (based on IEM) and MOSYS, IPK Berlin has developed two planning systems which justly fit the need of todays industrial p lanning requirements.

View