Fabrikplanung

Due to shorter product life cycle and increasing variants of products manufacturing companies have to be flexible in factory structures. Flexibility of factory structures is based on defined factory planning processes considering product, process and resource data resulting from various disciplines and isolated IT tools. Thus factory planning processes can be characterized as iterative, interdisciplinary and participative pro-cesses. To enforce the interdisciplinary and participative character, a federative factory data management (FFDM) as an integrative solution will be described. Product, process and resource data will be provided by web services resulting in acceleration of factory planning pro-cesses due to reduced redundancy, inhomogeneity and inconsistence in data holding.

In a world of steady change, manufacturing companies face major challenges. They have to react quickly to an increasing competition and more and more individual customer requests. New technologies and organisational structures like RFID or decentralised and real-time based production control can deal with this issue successfully. The specific realization of selection and analysis of each production process of the company often approves to be difficult and cost intensive. Previous simulation approaches are frequently combined with high efforts in order to state credible propositions regarding suitability and economic efficiency. The present paper shows a new opportunity towards managing these disadvantages. Additionally, the advantages are combined with computer-based simulations of the model factory. A fast and flexible illustration of the analysed production processes is achieved.

IT tools currently available in the context of digital factory allow to develop and to analyze factory concepts on different levels of abstraction. One challenge is the complexity of factory planning processes. These factory planning processes can be described with an interdisciplinary, participative and iterative character. To handle these complex processes modern methods of concurrent and simultaneous engineering get more important. These methods require new challenges from IT resulting in isolated IT-tools of a digital factory. Integration of these isolated IT-tools is the common challenge and requires an integrative solution. In this paper the result of a study conducted by the Department of Computer Integrated Design (DiK) will be presented. The two main questions of the study are: The usage of tools of digital factory in the industry and the need for a factory data management as an integrative solution in industrial practice.

Due to increased customer requirements the product quality has become a precondition for the competitiveness of manufacturers. Fundamental for the production of top-quality products are stable and error-free processes. The basic process configuration takes place during the factory planning. If substantial quality related standards are not taken into account at this time, essential modifications could only be realized during the subsequent factory operations with a significant additional effort. Therefore a methodical approach for the planning of quality supportive factories which early integrates the relevant requests in the planning processes is developed at the Institute of Production Systems and Logistics (IFA) of the Leibniz University of Hannover.

Today’s new products and services must be marketed in cycles which are rapidly becoming shorter and shorter. The pricing pressure and the progressing trend toward individualisation of products pose a tremendous challenge for major sectors of the industry. In the future, therefore, the implementation of digital methods will be necessary to a much greater extent than in the past, not only in product development, but also in process, production, and factory planning. For ensuring their own survival in a globalised world, small and medium-sized enterprises will also be faced with the inescapable necessity of introducing the digital factory. In this context, 3D-CAD factory planning can be regarded as a basic prerequisite for successful implementation of the digital factory. However, this prerequisite has not yet been satisfied in many companies. In the present publication, an overall method for implementing computer-aided 3D-CAD factory planning in conformance with the requirements is ...

These days, competitive advantages for manufacturing companies can not be achieved by a detached configuration of specific processes but only within an inte-grative configuration of the complete system factory. The deployed technologies and the manufactured products have a significant influence on the configuration of a factory. To allow a better coordination between technology, product and factory planning, an approach for integrated factory coordination has been developed at the Hannover Centre for Production Techno-logy (PZH). This approach is based on the general roadmapping idea and allows the systematisation of the information transfer concerning content and time between factory, technology and product planning.

The development of changeable factory concepts influences the site competitiveness of producing companies. The impact of the underlying factory structure, the factory layout, and the logistics on the operating efficiency of a factory concept is unquestioned. The influence of future production technologies or products on the factory concept, however, is often neglected. In a cooperative project a new method has been derived which allows a holistic coordination of all three elements factory, technology and product.

Job-shop-productions are facing high requirements due to the high diversity of manufactured products, changing lot-sizes and strongly cross-linked material flows. This situation is intensified by dynamic effects which are caused by non-linear dependences between the system’s parameters. The complex dynamics can affect the logistic performance of the system by varying stock-levels, rising cycle times or decreasing capacity utilisation. This paper describes an approach to analyse the effects of the factory planning process on the system’s dynamics, whereat the focus will be on the planning subtasks of dimensioning and structuring. This is expected to improve methods of design for job-shop-productions.

Enterprises face a plethora of outside influences. Examples include shortening product life cycles, rising cost pressure or increasing number of variants. In order to make arrangements for their factories to remain future-robust, many companies strive for a transformable factory. In order to fully use the change-potential installed, a methodology that allows integrating an employee-oriented view, is indispensable. This contribution presents an approach which renders possible the coordination of employee skills and factory transformability.

„Gentelligence“ is a neologism and describes the property of parts to save, store and process data (intelligence) and further to pass information on to following generations of parts (genetic). Unlike existing technologies the gentelligent technology is able to store information without the physical separation of part and information. The present article highlights the potentials of gentelligent parts in assembly control and factory structuring.