8 research outputs found

    An extensible product structure model for product lifecycle management in the make-to-order environment

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    This paper presents a product structure model with a semantic representation technique that make the product structure extensible for developing product lifecycle management (PLM) systems that is flexible for make-to-order environment. In the make-to-order business context, each product could have a number of variants with slightly different constitutions to fulfill different customer requirements. All the variants of a family have common characteristics and each variant has its specific features. A master-variant pattern is proposed for building the product structure model to explicitly represent common characteristics and specific features of individual variants. The model is capable of enforcing the consistency of a family structure and its variant structure, supporting multiple product views, and facilitating the business processes. A semantic representation technique is developed that enables entity attributes to be defined and entities to be categorized in a neutral and semantic format. As a result, entity attributes and entity categorization can be redefined easily with its configurable capability for different requirements of the PLM systems. An XML-based language is developed for semantically representing entities and entity categories. A prototype as a proof-of-concept system is presented to illustrate the capability of the proposed extensible product structure model

    A Systems Approach Towards Reliability-Centred Maintenance (RCM) of Wind Turbines

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    AbstractWind turbines are a proven source of clean energy with wind power energy harvesting technologies supplying about 3% of global electricity consumption. However there is an increasing demand on maintenance and operational improvements since turbines have been plagued with downtime problems of major components e.g. gearboxes and generators, especially with offshore turbines which are difficult to access. Reliability Centric Maintenance (RCM) is a way of capturing the potential causes of downtime and poor performance by preventing failures and having a proactive approach to operations and maintenance (O&M). However, for a large fleet of turbines, adopting the RCM approach becomes difficult due to the complexities that arise as a result of the interactions between individual elements that make up the system in the product lifecycle. This paper discusses how a systems thinking approach can be used to identify the relevant aspects and possible interactions between the RCM approach and wind turbine gearboxes and also how the gaps that exist within the system can be closed so as to add value to business. The outcome of the paper is a proposal for applying a systems approach to wind turbine gearbox operation and maintenance, optimising the asset value adding contribution at minimal total cost to the operator

    Learning from the lifecycle:The capabilities and limitations of current product lifecycle practice and systems

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    Design teams within the High Value Low Volume (HVLV) industry are facing ever-increasing challenges in developing new products. This has been largely due to the paradigm shift towards Product Service Systems, the growing importance of demonstrating Corporate Social Responsibility and stricter environmental legislation. With the variant nature of the design process within the HVLV industry and the longevity of the product life-cycles, it is recognised that learning from previous products is essential for new product innovation and development. The ability to do this depends upon the company’s product lifecycle practice and systems, and its inherent capability/limitations. To explore these issues, this paper maps typical data and information flow and the Information Systems involved, onto a generalised product lifecycle for HVLV. The map is generated from an extensive literature review and is used to critically appraise and reflect upon current product data lifecycle practice. In particular, its capability to provide design teams in the HVLV industries with sufficient data and information throughout the lifecycle phases of existing products to inform variant product design is considered

    Learning from the lifecycle: The current capabilities and limitations of product lifecycle practice and systems

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    Design teams within the High Value Low Volume (HVLV) industry are facing ever-increasing challenges in developing new products. This has been largely due to the paradigm shift towards Product Service Systems, the growing importance of demonstrating Corporate Social Responsibility and stricter environmental legislation. With the variant nature of the design process within the HVLV industry and the longevity of the product life-cycles, it is recognised that learning from previous products is essential for new product innovation and development. The ability to do this depends upon the company’s product lifecycle practice and systems, and its inherent capability/limitations. To explore these issues, this paper maps typical data and information flow and the Information Systems involved, onto a generalised product lifecycle for HVLV. The map is generated from an extensive literature review and is used to critically appraise and reflect upon current product data lifecycle practice. In particular, its capability to provide design teams in the HVLV industries with sufficient data and information throughout the lifecycle phases of existing products to inform variant product design is considered

    Methodology for PLM implementations

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    181 p.The large amount of information which is created during product development, the increasing products complexity, and globalization have lead to developing Product Lifecycle management (PLM) strategies. PLM allows managing information and processes developed and conducted through the product lifecycle, connecting all the stakeholders regardless their geographic location. This strategy is supported by technological platforms which provide the means for performing the engineering processes in a collaborative way. However, the platform implementation depends on a properly strategy definition and execution. PLM strategies are widely used in the global context, nevertheless, in developing countries such as Colombia this kind of implementations are not common due to the up-front costs and the lack of knowledge and experience in the implementation process. Due to that, the presented research describes a methodology for conducting PLM strategy implementations in Small and Medium Size Enterprises (SME) of local context, based in the use of an Open Source PLM system.Contenido parcial: What is PLM -- PLM Systems Evolution -- Action Research (AR) definition -- PLM Methodology construction by AR cycles -- Methodology description -- Case study

    Analyzing management processes within a distributed team context : the case of a Canada-China construction project

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    Information flows in construction projects -- Distributed team contexts in construction -- Construction process reengineering and modeling -- Research process road map -- Case observation and data source -- PMBOK application and database establishment -- Modeling technique and unified modeling language (UML) -- Information flow patterns in distributed work -- Identification and analysis of critical construction processes -- Integration -- Procurement -- Materials
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