Daniel Strang

Integriertes Bauteildatenmodell für Industrie 4.0 - Informationsträger für cyber-physische Produktionssysteme

Kurzfassung Der Technologiefortschritt durch Industrie 4.0 ermöglicht die Nutzung von Bauteilen als Informationsträger und deren Vernetzung mit cyber-physischen Produktionssystemen. In dem Beitrag wird der Ansatz für ein integriertes Bauteildatenmodell für den Wertschöpfungsprozess Produktion vorgestellt. Die Basis bildet der Theta-Ansatz zur Repräsentation von Bauteilen als cyber-physische Objekte. Zudem wird eine exemplarische Anwendung im Rahmen von cyber-physischen Produktionssystemen beschrieben.

Dynamic, Adaptive Worker Allocation for the Integration of Human Factors in Cyber-Physical Production Systems

In this paper an adaptive, dynamic, and individualized worker allocation method is presented. The developed method is based on individual worker information, the new flexible cyber-physical production system, and the communication between the participants of such a production system. According to a communication scenario demands of a manufacturing step and a manufacturing station are compared with employee information. This provides the basis for a decision of the worker allocation. Workers are only allocated to manufacturing stations that match their qualifications and personal characteristics. For a better integration of human factors in CPPS, the job satisfaction of each worker also has to be taken into account. Therefore a satisfaction value for each manufacturing operation and manufacturing station is defined and part of the worker information. The aim of the research is to increase the productivity in the production system and the satisfaction of each individual worker.

Response Behavior Model for Process Deviations in Cyber-Physical Production Systems

Cyber-physical production systems are highly flexible systems that enable adaptive production processes. In these systems, all participants of the production process possess individual information about themselves and are equipped with sensors, actors, and communication interfaces. They can interact with each other and autonomously develop and execute process relevant decisions. For each component, a standard process sequence and alternative process sequences are defined. If a deviation in the standard process occurs during the production of an individual component, the process participants can interact with each other and autonomously define an appropriate response strategy and execute it by using actors of the participants and the intralogistics. Regardless of the deviation, the manufacturing and assembly process of individual components in cyber-physical production systems can still proceed. For this purpose, process deviations and the response behavior of cyber-physical production systems are analyzed, modeled, and simulated, to illustrate the benefits of cyber-physical production systems and to develop a process deviation management system for actual, physical production systems based on cyber-physical systems.

Functional Shape Elements Integrating Design and Manufacturing Knowledge

In the aviation industry, engine components of different families, variants and versions are characterized by a high level of geometrical, functional and procedural similarities and offer a high potential for rationalization. The reuse of existing knowledge is enabled in product development by part families and features libraries. The classification, administration and retrieval of these parts and features are mainly based on geometric properties, while functional aspects are not considered sufficiently. Nevertheless, in engine design the functional attribute is crucial: Two geometry elements with a nearly identical shape may be applied for completely different functions. A flange serves for transmitting torque as well as for sealing against hot air. In this paper functional shape elements integrating knowledge from both design and manufacturing and the method for their definition are introduced and their application is presented exemplarily.

Automatic 3D Documentation Method for Manufacturing Processes

Product documentation plays an important role in product creation. Many parts of the documentation are used for manufacturing, assembly and quality assurance processes. Until today the leading document for manufacturing processes is the engineering drawing. With more complex product designs the clarity of the drawings decreases. Modern technologies enable the transition to a paperless manufacturing documentation without the need for expensive licenses. 3D-PDF technology offers a way to provide manufacturers with 3D-CAD models containing the appropriate product manufacturing information.In this paper a generative document that provides only the essential information for certain manufacturing steps is presented. 3D-PDF technology is used to present the results to the machinist. The recommended documentation provides two different views: the input and output status of a product at a specific manufacturing station. Those views are created automatically from the ERP database containing manufacturing knowledge of the product. The presented models are supplemented with general information, e.g. material, designer, general tolerances. The limitation on necessary information for only one manufacturing step at a time increases the comprehensibility of the product documentation and thus accelerates the manufacturing process and improves product quality.Copyright