Production engineering

About: Production engineering is a research topic. Over the lifetime, 2657 publications have been published within this topic receiving 37409 citations.

Collaborative Product Introduction within Extended Enterprises

Abstract: The trend of outsourcing within the electronic industry has contributed to the creation of new types of extended enterprises. These extended enterprises must be able to manage a challenging situati ...

Manufacturing Ontology Development Based on Industry 4.0 Demonstration Production Line

Abstract: The increasing pressures faced by manufacturers, the shortening of innovation cycles and the growing importance of high-efficiency manufacturing demand a higher versatility of factory automation. In order to achieve this target, engineering tasks currently performed manually need to be automated. In this case, ontologies emerge as a significant method for representing manufacturing knowledge in a machine-interpretable way. This knowledge can then be used by automated problem-solving methods to reconfigure the control software that coordinates and supervises manufacturing systems. Besides, Ontology can play a very important role in the process of creating as well as managing the knowledge. This paper addresses the important issues in developing domain-specific ontology for manufacturing used in industry 4.0 demonstration production line. A generic ontology is developed considering all the aspects about product from customized order to resulting production.

Computing the Thermal Behaviour of Machine Tools using the Finite Element Method-Possibilities and Limitations

Abstract: Automation in production engineering and increasing demands on production equipment entail an ever rising importance not only of static and dynamic properties, but above all of the thermal behaviour of machine tools. In order to ensure optimum design and construction of machinery, comprehensive predetermination of machine behaviour is being aimed at. By means of computer programs it is possible to calculate the thermal behaviour of a machine under the expected stress and to gear the machine to optimum performance.

Lean manufacturing principles : a comprehensive framework for improving production efficiency

Abstract: A framework was created to analyze manufacturing systems and assess the impact of various practices on system performance. A literature review of Lean Manufacturing resulted in the discovery of significant gaps in two areas: (1) modeling the effects of implementing Lean Manufacturing using control theory principles, and (2) a design framework for building Cellular Manufacturing Systems and making the transition from traditional manufacturing to Lean Manufacturing. Work in these areas led to the conclusion that reducing the Order Lead Time until it is less than Tall, the allowable customer lead time for post-payment production, would yield tremendous benefits both for individual factories as well as for entire Linear Distribution Systems. To fill these gaps, a model was created which analyzed the dynamics of Linear Distribution Systems, and showed how Lean Manufacturing represents an opportunity to sidestep many previously insurmountable difficulties that arise as a result of producing to fill inventory levels. The methods for implementation of Lean Principles were explored, from prerequisites for Cellular Manufacturing Systems, to design and optimization of Cells, through exploration of the improvements in quality that are possible in Cellular Manufacturing Systems. A thorough a dissemination of the various contributions to Order Lead Time showed that changeover reduction, information flow, zero defects and cellular manufacturing are all indispensable in achieving the goal of OLT < Tall. Finally, conclusions were presented which show that achieving this reduction allows for production under an entirely new philosophy that completely eliminates capital investment in inventory. Thesis Supervisor: David Cochran Title: Assistant Professor of Mechanical Engineering

Challenges for maintenance of PLC-software and its related hardware for automated production systems: Selected industrial Case Studies

Abstract: The specific challenges for maintenance of software and its related hardware for the domain of automated Production Systems is discussed. Presenting four industrial case studies from renowned and world market leading German machine and plant manufacturing companies, these challenges and different solution approaches are introduced with a focus on software architectures to support modularity as a basis for maintaining long-living automated Production Systems. Additionally, most critical aspects hindering classical approaches from software engineering to be successful, e.g., modes of operation and fault handling, are discussed. In the last decades, research in the field of software engineering for automated Production Systems (aPS) has been focusing on developing domain specific model-driven engineering approaches supporting the development process, but mostly neglecting the operation, maintenance and re-engineering aspects. However, the success of model-driven engineering in aPS industry has been limited because the effort to introduce model-driven engineering and to change the entire existing legacy software is estimated as too high and the benefit as too low against the background of customer specific solutions expecting a low degree of reuse.