3,371 research outputs found
Application-driven visual computing towards industry 4.0 2018
245 p.La Tesis recoge contribuciones en tres campos: 1. Agentes Virtuales Interactivos: autónomos, modulares, escalables, ubicuos y atractivos para el usuario. Estos IVA pueden interactuar con los usuarios de manera natural.2. Entornos de RV/RA Inmersivos: RV en la planificación de la producción, el diseño de producto, la simulación de procesos, pruebas y verificación. El Operario Virtual muestra cómo la RV y los Co-bots pueden trabajar en un entorno seguro. En el Operario Aumentado la RA muestra información relevante al trabajador de una manera no intrusiva. 3. Gestión Interactiva de Modelos 3D: gestión online y visualización de modelos CAD multimedia, mediante conversión automática de modelos CAD a la Web. La tecnología Web3D permite la visualización e interacción de estos modelos en dispositivos móviles de baja potencia.Además, estas contribuciones han permitido analizar los desafíos presentados por Industry 4.0. La tesis ha contribuido a proporcionar una prueba de concepto para algunos de esos desafíos: en factores humanos, simulación, visualización e integración de modelos
INDUSTRY 4.0 TECHNOLOGIES AND ORGANIZATIONAL DESIGN–EVIDENCE FROM 15 ITALIAN CASES
Current literature on Industry 4.0 technologies has mainly explored their relationship to the employment dynamics, or to the required competencies and emerging roles. This paper is complementing current literature with a perspective focused on organizational design. The aim of the paper is to explore how organizations are re-designed when Industry 4.0 technologies are implemented. The paper is based on 15 case studies carried out in Italian manufacturing companies and data was collected from 70 semi-structured interviews to relevant roles involved in the implementation of digital technologies. Results show that, when Industry 4.0 technologies are implemented, organizations are redesigned following an employee control-oriented or following an employee commitment-oriented organizational design. These results show that organizational design is the result of decisions, and is not determined by technology. The implications of our findings are presented and discussed
Engineering methods and tools for cyber–physical automation systems
Much has been published about potential benefits of the adoption of cyber–physical systems (CPSs) in manufacturing industry. However, less has been said about how such automation systems might be effectively configured and supported through their lifecycles and how application modeling, visualization, and reuse of such systems might be best achieved. It is vitally important to be able to incorporate support for engineering best practice while at the same time exploiting the potential that CPS has to offer in an automation systems setting. This paper considers the industrial context for the engineering of CPS. It reviews engineering approaches that have been proposed or adopted to date including Industry 4.0 and provides examples of engineering methods and tools that are currently available. The paper then focuses on the CPS engineering toolset being developed by the Automation Systems Group (ASG) in the Warwick Manufacturing Group (WMG), University of Warwick, Coventry, U.K. and explains via an industrial case study how such a component-based engineering toolset can support an integrated approach to the virtual and physical engineering of automation systems through their lifecycle via a method that enables multiple vendors' equipment to be effectively integrated and provides support for the specification, validation, and use of such systems across the supply chain, e.g., between end users and system integrators
Analysis of manufacturing operations using knowledge- Enriched aggregate process planning
Knowledge-Enriched Aggregate Process Planning is concerned with the problem of supporting agile design and manufacture by making process planning feedback integral to the design function. A novel Digital Enterprise Technology framework (Maropoulos 2003) provides the technical context and is the basis for the integration of the methods with existing technologies for enterprise-wide product development. The work is based upon the assertion that, to assure success when developing new products, the technical and qualitative evaluation of process plans must be carried out as early as possible. An intelligent exploration methodology is presented for the technical evaluation of the many alternative manufacturing options which are feasible during the conceptual and embodiment design phases. 'Data resistant' aggregate product, process and resource models are the foundation of these planning methods. From the low-level attributes of these models, aggregate methods to generate suitable alternative process plans and estimate Quality, Cost and Delivery (QCD) have been created. The reliance on QCD metrics in process planning neglects the importance of tacit knowledge that people use to make everyday decisions and express their professional judgement in design. Hence, the research also advances the core aggregate planning theories by developing knowledge-enrichment methods for measuring and analysing qualitative factors as an additional indicator of manufacturing performance, which can be used to compute the potential of a process plan. The application of these methods allows the designer to make a comparative estimation of manufacturability for design alternatives. Ultimately, this research should translate into significant reductions in both design costs and product development time and create synergy between the product design and the manufacturing system that will be used to make it. The efficacy of the methodology was proved through the development of an experimental computer system (called CAPABLE Space) which used real industrial data, from a leading UK satellite manufacturer to validate the industrial benefits and promote the commercial exploitation of the research
A HOLISTIC APPROACH TO COMPUTER INTEGRATED MANUFACTURING ARCHITECTURE AND SYSTEMS DESIGN
This work addresses the problem of finding an improved solution to Computer
Integrated Manufacturing (ClM) Architecture and Systems Design. The current
approaches are shown to be difficult to understand and use, over complex. In
spite of their complexity of approach they lack comprehensiveness and omit many
factors and dimensions considered essential for success in today's competitive
and often global market place.
A new approach to ClM Architecture and Systems Design is presented which
offers a simpler, more flexible and more robust format for defining a particular ClM
System within a general architectural framework. At the same time this new
approach is designed to offer a comprehensive and holistic solution.
The research work involved the investigation of current approaches and research
and development initiatives focusing particularly on the CIM-OSA and GRAI
Integrated methodologies in the field of ClM Architecture. The strengths and
weaknesses of the various approaches are examined. Developments in other
related fields including manufacturing systems, manufacturing management,
information technology and systems generally have been investigated regarding
their relevance and possible contribution to an improved solution.
The author has built on his practical experience in creating, designing and
managing the implementation of a global CIM system. The authors work on
several publicly funded collaborative research and development projects relevant
to the problem area is described. These include CIM-OSA, IMOCIM and TIQS
projects. In the latter two projects the author was instrumental in developing the
methodological approach based on a systems approach to business processes in
connection with the design of quality and manufacturing systems. Both of these
projects have contributed to this work. The author has also participated in the
global IMS programme as a rapporteur for the European Commission and this
helped to provide a global perspective on the problems of manufacturing
companies as they attempt to compete in a world wide market place.
The results of this work provide the basis for a radically improved approach to
ClM Architecture and Systems Design based on the holistic view of an enterprise.
The approach developed supports the business process view of an enterprise;
addresses the people and organisational aspects; leads to ClM solutions focused
on meeting enterprise goals; and is able to deal with a significantly increased
scope and complexity compared with existing methods yet is easily understood
and more simple to simple to apply than current approaches
Integrated Project Support Study Group : findings
The challenges of the LHC project have lead CERN to produce a comprehensive set of project management tools covering engineering data management, project scheduling and costing, event management and document management. Each of these tools represents a significant and world-recognised advance in their respective domains. Reviewing the offering on the eve of LHC commissioning one can identify three major challenges: 1. How to integrate the tools to provide a uniform and integrated full-product lifecycle solution 2. How to evolve the functionality in certain areas to address weaknesses identified with our experience in constructing the LHC and integrate emerging industry best practices 3. How to coherently package the offering not just for future projects in CERN, but moreover in the context of providing a centre of excellence for worldwide collaboration in future HEP projects
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