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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
81

L'introduction de la gestion du cycle de vie produit dans les entreprises de sous-traitance comme vecteur d'agilité opérationnelle et de maîtrise du produit / ‘Product Lifecycle Management’ (PLM) in the subcontracting industry as a key for operational agility and product management

Pinel, Muriel 30 May 2013 (has links)
Pour faire face à un environnement en perpétuelle évolution, les entreprises doivent changer et parfois en profondeur. Ces évolutions en principe voulues et contrôlées se font au moyen de projets dits « d'entreprise ». Parmi les buts qu'il s'agit d'atteindre par le biais de ces projets, deux buts majeurs sont identifiables : le développement de l'agilité opérationnelle et la maîtrise des produits. Dans ces travaux de thèse, nous nous focalisons sur le projet PLM (Product Lifecycle Management) et plus particulièrement sur la mise en oeuvre du système d’information nécessaire à la gestion du cycle de vie des produits : le système PLM. Ce système d’information coordonne tout ou partie des informations liées à la définition, à la réalisation, à l’usage et au retrait des produits. Après un état de l’art permettant de définir de façon précise les concepts liés à la gestion du cycle de vie des produits, une méthode est proposée pour définir le cahier des charges du système PLM. La définition de cette méthode montre la nécessité d’assurer la cohérence entre les différents modèles du système PLM d’une part et entre les différentes représentations du produit utilisées tout au long de son cycle de vie d’autre part. Un cadre de modélisation basé sur le paradigme systémique, sur le paradigme d'ambivalence et sur des concepts de métamodélisation est alors proposé. Ce cadre de modélisation apporte des éléments de réponse aux besoins de cohérence identifiés. Il supporte également l'adoption du raisonnement synergique indispensable au développement de l'agilité opérationnelle recherchée par l’entreprise. Une expérimentation est réalisée pour illustrer les concepts introduits dans notre cadre de modélisation. / Faced with a constantly evolving environment, companies have to change and sometimes have to change in depth. These evolutions are usually intentional and monitored and they are done through business projects. Two major goals can be identified among the goals to be reached through these projects: the operational agility development and the product management expertise. This thesis work focuses on PLM (Product Lifecycle Management) project and more precisely on the implementation of the information system needed to manage products’ lifecycle : the PLM system. This information system manages all or part of information related to the definition, the manufacturing, the use and the treatment as a waste of products. First of all, a state of the art of the concepts related to product lifecycle management is done. Basing on these concepts, a method for defining the PLM system requirements is proposed. Defining this method highlights two consistency needs. The first one is related to consistency among the several PLM system models. The second one is related to consistency among the several product representations used throughout the product lifecycle. A modeling framework based on the systemic paradigm, on the ambivalence paradigm and on metamodeling concepts is then proposed. On the one hand, this modeling framework provides elements to respond to identified consistency needs. On the other hand, it supports the adoption of the synergistic reasoning that is essential for developing the operational agility sought by the enterprise. An experimentation is carried out to illustrate the concepts introduced by the modeling framework.
82

Effekter vid användning av elektroniska arbetsinstruktioner

Sjörén, Petter January 2007 (has links)
Näringsliv och offentlig sektor står inför ständiga utmaningar att förändra och effektivisera sin verksamhet. Idag ses information som en verklig produktionsfaktor och åtkomst till lämplig informationen ses som en nödvändighet för uppnå effektivitet och produktivitet i de individuella aktiviteterna (Oehlmann, Thoben & Weber, 1997). Med hjälp av elektroniska arbetsinstruktioner på produktionsgolvet har tillverkande industrier hittat en effektiv metod för att minska variationerna, öka kvaliteten, förbättra kommunikationen, minimera kostnaderna och snabbare få ut produkterna på marknaden, den s.k. Time-to-market (Coetzee, 2004). Syftet med denna uppsats är att undersöka om Informationslogistik genom införandet av elektroniska arbetsinstruktioner kan påverka effektiviteten och kvaliteten i ett företag vilket använder sig av elektroniska arbetsinstruktioner. En fallföretagsstudie har genomförts på HMS Industrial Networks AB, en världsledande leverantör av fältbuss-teknologi för automationsutrustning. De har utvecklat ett IT-system för att hantera elektroniska arbetsinstruktioner vilket de använder fullt ut i sin tillverkning. Mer praktiskt har uppsatsens arbete handlat om att undersöka hur de anställda upplever att det påverkat deras effektivitet i det dagliga arbetet, såväl som kvaliteten i arbetet, informationen och på produkterna. Intervjuer med användare från dokumentationsteamet och produktionsmedarbetarna har gjorts och resultatet visar att användandet av PRIS och elektroniska arbetsinstruktioner har gett en rad effekter i verksamheten, både för dem vilka administrerar och hanterar produktionsunderlagen såväl som för de berörda användarna på produktionsgolvet och i övriga delar i organisationen. Resultatet visar att Informationslogistik i allra högsta grad kan påverka effektiviteten och kvaliteten i ett företag. Dokumentationsteamet kan arbeta parallellt i de olika produktionsunderlagen, det är enklare att lägga upp ett underlag och hantera uppdateringar, innehållet är spårbart och de kan återanvända allt innehåll i nya artiklar, samtidigt som informationen snabbt når ut på produktionsgolvet. För medarbetarna i produktionen har det inneburit att de nu kommer åt informationen snabbare, de kan ta egna och snabbare beslut, de känner sig mer självständiga, de har blivit mer effektiva samt att de nu har ett samlat ställe för all produktionsrelaterad information de behöver för att kunna utföra sitt jobb. Likaså har kvaliteten i underlagen ökat och på produkterna ut till kund. De har också fått en en säker distribution och hantering av information samt en större kontroll på tillverk-ningsprocessen. / Industries and governments stand before constant challenges to change and make their business processes more efficient. Information is now considered an actual production factor, and the appropriate availability of information is seen as crucial for the efficiency and effectiveness of individual tasks (Oehlmann, Thoben & Weber, 1997). With help of electronic work instructions process manufacturers has discovered an effective method for reducing variability, increasing consistency, and bringing new products to the market significantly faster (Coetzee, 2004). The main objective of this report is to examine if Information Logistics through the use of electronic work instructions can affect the efficiency and quality in a company that uses electronic work instructions. A case study has been carried out at HMS Industrial Networks AB, a world-leading supplier of field bus technology for automation devices. They have developed a system that handles the electronic work instructions, which they use through out the production plant. The system is called Production Resource Infomanagment System (PRIS). The work in this report has examine how the employees experience that PRIS has affected their efficiency on a daily basis, as well as the quality of their work, in the information and on the products. Interviews with users from both the documentation team and the production team have been carried out and the result shows that the use of PRIS and electronic work instructions have had major impacts in the company, for those who administrates and handle the production sheets as well as for the users on the production floor and in other parts of the company. The result shows that Information Logistics can affect efficiency and quality in a company. The documentation team can work parallel in different production sheets, it’s easier to create production sheets and work with updates in them, all of the content in a production sheet can be reused in other articles and the distribution of information to the users is instant. For the production team, the use of electronic work instructions has decreased their time for information retrieval, they can now make their own decisions and in a faster way than before, they feel more independent, their efficiency has increased and they now only have one place for all the production related information they need in order to perform their jobs. The quality of the information in the production sheets have also increased, as well as the quality of the products sent to customers. They have also got a secure distribution and in-formation management and improved process control.
83

Proposta de metodologia para implementação de sistemas de manufatura digital baseada no gerenciamento do ciclo de vida do produto com ênfase no ensino tecnológico / Proposal of methodology for implementation of digital manufacture systems, based on product lifecycle management with emphasis in the technological formation

Cáceres, Mauro Sérgio Juarez 16 August 2018 (has links)
Orientador: João Maurício Rosário / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica / Made available in DSpace on 2018-08-16T08:08:00Z (GMT). No. of bitstreams: 1 Caceres_MauroSergioJuarez_D.pdf: 14153245 bytes, checksum: eb274a6cfc34c223cb0ab36ddddce9a7 (MD5) Previous issue date: 2010 / Resumo: Este trabalho reflete uma inquietação que surge da observação de um cenário onde a filosofia de concepção, manufatura, colocação no mercado e atualização e ou modificações de produtos nos diversos ramos da indústria, cada vez mais, ocorrem dentro de um ciclo realizado no universo digital, antecedendo quaisquer investimentos em máquinas, equipamentos ou infraestrutura. Esta inquietação traz o questionamento de como a educação profissional no país está se mobilizando para atender a demanda de profissionais que atuem neste entrelaçamento de softwares e sistemas que executam montagens, simulações e gerenciamento de dados de engenharia dentro deste universo digital. Assim coloca-se neste trabalho uma Proposta Metodológica para o Ensino Tecnológico na Manufatura Digital-PLM, fundamentada na Metodologia de Ensino por Competências, abrangendo o aspecto tecnológico e o pedagógico, assim como os conceitos de Manufatura Digital, Gerenciamento do Ciclo de Vida do Produto - Product Lifecycle Management (PLM), Projetos Colaborativos e os benefícios destas tecnologias e metodologias, como uma opção para dar conta do desafio a ser transposto pelas instituições dedicadas à educação profissional, no sentido de suprir o mercado de trabalho com esta mão de obra especializada, contribuindo para o desenvolvimento do país / Abstract: The creation, production, updating or modification, and marketing of different industrial products take place in a digital universe which precedes any investment in machinery, equipment or infrastructure. This project focuses on the professional education challenge to produce consistent scientific and up-to-date technically competent professionals, who can fulfill the demand created by the aforementioned stages of industrial product development. It also examines the ways in which the country's professional education system can mobilize itself in order to meet the demand for professionals who can work in the network of software and systems, that assemble, simulate, and manage engineering data within this digital universe. The project presents concepts on digital manufacturing, product lifecycle management-PLM, the benefits of such technologies and show a Methodological Proposal Based on Skills, it focuses in Digital Manufacturing-PLM, using on considerations about the professional formation teaching methods, as well as the challenge to be overcome by those institutions dedicated to the country's professional education, in order to satisfy the skill trade market demand, thus contributing to its development / Doutorado / Mecanica dos Sólidos e Projeto Mecanico / Doutor em Engenharia Mecânica
84

Towards an industrial ALM (Application Lifecycle) Tool Integration

Markov, Georgi, Druzhinina, Olga January 2011 (has links)
Context. Application Lifecycle Management refers to the coordination of all aspects of software engineering, through a collection of integrated software development tools. More and more organizations are heavily relying on the ALM tools nowadays. Objectives. In this study we research ALM first as a business strategy, its roots, its advantages and disadvantages. As well as making a theoretical research, we seek out the setbacks of the practical side of ALM in order to find the areas needed for improvement, by investigating the ALM’s existing tools, interviewing ALM’s users, and using gained statistical data to derive practical facts about ALM. The goal of the thesis is to find out how ALM can be improved. Methods. The vast amount of sources, including articles, books, and journals is used to support our arguments and conclusions. A long online survey was carried with many participants to understand the practical side of ALM, as well as gain access to information about ALM’s setbacks. Results. The problems of ALM are recognized and named. Proposals are made in respect of how to deal with these problems. A list of what options need to be studied in the future, in order to improve the overall ALM design, and make it a powerful tool, is presented. A detailed plan for further research regarding this highly important issue is presented. Conclusions. We conclude that there are several ALM tool options on the market, all having their strengths and weaknesses. But in order for ALM to become an industrial solution and to be truly successful and effective in supporting the broader goals of the different organizations using it, the requests of the stakeholders towards deeper semantic integration between the various tool involved in the ALM processes need to be embodied in the current ALM offerings. We conclude that further research is needed in order to assess the proposals, and test the design ideas that are presented in the last chapter of this thesis. / This thesis concerns the authors and stakeholders of ALM. With the technological achievements taking place every day, and competition being very high, it is important to get the software product ready for release on time and of good quality. The current tools for managing of the application’s lifecycle are incoherent in terms of tool integration. In this thesis we describe the setbacks of ALM, according to interviewed stakeholders and authors of journals, articles and books. We conclude our thesis with the several proposed design options that may succeed in making ALM strong and consistent in the future. The proposed design mainly concerns the integration problems, and provides several potential solutions, aiming at easy to use and integrate tools. Further research areas are explained, and stated.
85

Gestion et visualisation de données hétérogènes multidimensionnelles : application PLM à la neuroimagerie / Management and visualisation oh heterogeneous multidimensional data : PLM application to neuroimaging

Allanic, Marianne 17 December 2015 (has links)
La neuroimagerie est confrontée à des difficultés pour analyser et réutiliser la masse croissante de données hétérogènes qu’elle produit. La provenance des données est complexe – multi-sujets, multi-analyses, multi-temporalités – et ces données ne sont stockées que partiellement, limitant les possibilités d’études multimodales et longitudinales. En particulier, la connectivité fonctionnelle cérébrale est analysée pour comprendre comment les différentes zones du cerveau travaillent ensemble. Il est nécessaire de gérer les données acquises et traitées suivant plusieurs dimensions, telles que le temps d’acquisition, le temps entre les acquisitions ou encore les sujets et leurs caractéristiques. Cette thèse a pour objectif de permettre l’exploration de relations complexes entre données hétérogènes, ce qui se décline selon deux axes : (1) comment gérer les données et leur provenance, (2) comment visualiser les structures de données multidimensionnelles. L’apport de nos travaux s’articule autour de trois propositions qui sont présentées à l’issue d’un état de l’art sur les domaines de la gestion de données hétérogènes et de la visualisation de graphes. Le modèle de données BMI-LM (Bio-Medical Imaging – Lifecycle Management) structure la gestion des données de neuroimagerie en fonction des étapes d’une étude et prend en compte le caractère évolutif de la recherche grâce à l’association de classes spécifiques à des objets génériques. L’implémentation de ce modèle au sein d’un système PLM (Product Lifecycle Management) montre que les concepts développés depuis vingt ans par l’industrie manufacturière peuvent être réutilisés pour la gestion des données en neuroimagerie. Les GMD (Graphes Multidimensionnels Dynamiques) sont introduits pour représenter des relations complexes entre données qui évoluent suivant plusieurs dimensions, et le format JGEX (Json Graph EXchange) a été créé pour permettre le stockage et l’échange de GMD entre applications. La méthode OCL (Overview Constraint Layout) permet l’exploration visuelle et interactive de GMD. Elle repose sur la préservation partielle de la carte mentale de l’utilisateur et l’alternance de vues complètes et réduites des données. La méthode OCL est appliquée à l’étude de la connectivité fonctionnelle cérébrale au repos de 231 sujets représentées sous forme de GMD – les zones du cerveau sont représentées par les nœuds et les mesures de connectivité par les arêtes – en fonction de l’âge, du genre et de la latéralité : les GMD sont obtenus par l’application de chaînes de traitement sur des acquisitions IRM dans le système PLM. Les résultats montrent deux intérêts principaux à l’utilisation de la méthode OCL : (1) l’identification des tendances globales sur une ou plusieurs dimensions et (2) la mise en exergue des changements locaux entre états du GMD. / Neuroimaging domain is confronted with issues in analyzing and reusing the growing amount of heterogeneous data produced. Data provenance is complex – multi-subjects, multi-methods, multi-temporalities – and the data are only partially stored, restricting multimodal and longitudinal studies. Especially, functional brain connectivity is studied to understand how areas of the brain work together. Raw and derived imaging data must be properly managed according to several dimensions, such as acquisition time, time between two acquisitions or subjects and their characteristics. The objective of the thesis is to allow exploration of complex relationships between heterogeneous data, which is resolved in two parts : (1) how to manage data and provenance, (2) how to visualize structures of multidimensional data. The contribution follow a logical sequence of three propositions which are presented after a research survey in heterogeneous data management and graph visualization. The BMI-LM (Bio-Medical Imaging – Lifecycle Management) data model organizes the management of neuroimaging data according to the phases of a study and takes into account the scalability of research thanks to specific classes associated to generic objects. The application of this model into a PLM (Product Lifecycle Management) system shows that concepts developed twenty years ago for manufacturing industry can be reused to manage neuroimaging data. GMDs (Dynamic Multidimensional Graphs) are introduced to represent complex dynamic relationships of data, as well as JGEX (Json Graph EXchange) format that was created to store and exchange GMDs between software applications. OCL (Overview Constraint Layout) method allows interactive and visual exploration of GMDs. It is based on user’s mental map preservation and alternating of complete and reduced views of data. OCL method is applied to the study of functional brain connectivity at rest of 231 subjects that are represented by a GMD – the areas of the brain are the nodes and connectivity measures the edges – according to age, gender and laterality : GMDs are computed through processing workflow on MRI acquisitions into the PLM system. Results show two main benefits of using OCL method : (1) identification of global trends on one or many dimensions, and (2) highlights of local changes between GMD states.
86

Ganzheitlicher "Produkt-Entwicklungs-Prozess" beeinflusst nachhaltig das schlanke "Life-Cycle-Management" – From Lean to Digital Approach

Keil, Heinz-Simon January 2012 (has links)
No description available.
87

Context-aware augmented reality experiences using cloud-based systems

Igelmo, Victor January 2020 (has links)
The new reality is about connectivity. From social media to collaborative tools in work environments, people and their devices are highly intercommunicated. This reality also affects the manufacturing industry, which has been developing standards to keep up with technology and take advantage of it. These technologies are encompassed in what has been called Industry 4.0. Out of all the technologies, apart from artificial intelligence, the main drives of Industry 4.0 are considered by many studies augmented reality (AR) and industrial internet of things (IIoT). This thesis suggests that these drivers have been mostly tested either in an isolated fashion or with limited connectivity. The main objective is to explore the advantages of connecting AR, IIoT, and the main source of information in the manufacturing process: product lifecycle management (PLM) systems. Two sub-objectives are extracted from the main one: to study of value created from real-time role-dependent AR information displaying, and to study how the connection AR-IIoT-PLM can affect developing and deploying times of AR experiences. To achieve the mentioned objectives, a case of study is built, and the combined system implemented on it. Following design and creation methodology, an artefact is created, and conclusions are extracted from the design, implementation, and usage stages. Main results are an improvement in developing and deploying time of AR experiences, along with guidelines to extract as much value as possible from the implementation of a combined system of this sort. This thesis includes a discussion section, where the potential of the system is explained and framed within the near future of manufacturing companies.
88

Unlocking Product Lifecycle Management Potential: A Self-Assessment framework for maturity. : A case study on Tetra Pak, Sweden

Lande, Tejas January 2023 (has links)
In the fluctuating and competitive business world, the significance of Product Lifecycle Management is on the rise. It's becoming a pivotal strategy for organizations keen on preserving their market competitiveness. However, the practical execution of PLM often poses tangible difficulties. Even though businesses recognize the potential benefits of PLM, the challenges in its effective deployment tend to create hurdles, making the implementation process complex and formidable. This study centered on Tetra Pak applying a distinct framework and a statistical approach to assess the level of PLM maturity. Utilizing a quantitative research methodology, a survey tool that was specifically designed to be in line with this framework was adopted. The research carefully examined the PLM-related business dimensions and components, and the results ultimately revealed Tetra Pak’s overall PLM maturity levels. This method produced a thorough understanding of the company's PLM framework and uncovered potential areas that could use improvement. The findings from this study contribute to a wider comprehension of PLM's role in bolstering sustainability and competitiveness in the contemporary business landscape. The maturity framework, developed as part of this research specific to Tetra Pak, serves as a versatile instrument to steer PLM implementation. This framework assists businesses in adapting to shifting strategies, thereby helping them to maintain a competitive advantage in an ever-changing market.
89

Digitala Tvillingar : Verklighet eller hype? / Digital Twins

Ruderer, Marcus, Stéen, Signe January 2020 (has links)
Digitala tvillingar har på de senaste åren blivit ett väldigt aktuellt och omtalat begrepp. I det här examensarbetet undersöks det om termen enbart är en hype eller om det faktiskt är verktyget för att utveckla olika branscher till något bättre. Projektet fokuserar främst på produktions- och utvecklingsindustrin, men även inom exempelvis stadsplanering och motorsport förklaras det vad digitala tvillingar används till. En viktig del i projektet är även Industri 4.0 och Sakernas Internet. Syftet (och resultatet) för det utförda examensarbetet är att ta reda på vad företag anser gynnsamt, såväl som missgynnsamt med digitala tvillingar, samt fastställa vilka barriärer det finns hos ett företag för att börja använda sig av digitala tvillingar. Syftet är även att utforska hur digitala tvillingar införs i ett företags produktutvecklingsprocess, samt vilken roll en fysisk provning får hos ett företag som introducerar digitala tvillingar. I projektets syfte ingår också att ta reda på mer om digitala tvillingar ur ett utvecklingsperspektiv, för att utreda hur kapaciteten förefaller hos en produkt som är testad och utvecklad i kombination med digital och verklig miljö. Vad finns det för data att utläsa, och i vilka fall finns det potential för en digital tvilling? För att nå önskade resultat med projektet har en tablettmaskin skapats i CAD. Med hjälp av den tredimensionella modellen visas det hur en digital tvilling kan användas för produktionsanläggningar (specifikt process- och tillverkningsindustri) genom att montera sensorer på den tredimensionella modellen, som även ska monteras identiskt på en fysisk motsvarighet. Under projektets genomförande undersöks även Gartners hypekurva och därmed vad som är hype och inte hype. I slutet av rapporten diskuteras bland annat vad som är möjligt att simulera med digitala tvillingar och vad som inte är det. Slutsatsen gällande om en digital tvilling är en hype eller inte, resulterar i att digitala tvillingar är ett verktyg som blir vad det skapas till. Anses en digital tvilling vara en hype, ja då kanske det egentligen är själva förväntningarna som är överskattade, och inte den digitala tvillingen i sig. / Digital twins have in recent years become a very current and discussed concept. This thesis examines whether the term is merely a hype or whether it is the tool for developing different industries for something better. The project focuses mainly on the manufacturing and development industry, but also what digital twins are used for in e.g. urban planning and motorsport. An important part of the project is also Industry 4.0 and the Internet of Things (IoT). The purpose (and result) of this Bachelor thesis is to find out what companies consider favourable, as well as unfavourable with digital twins, and to determine what barriers a company encounters to start using digital twins. The purpose is also to explore how digital twins are introduced into a company's product development process, as well as which role a physical test at a company that introduces digital twins has. The purpose of the project also includes finding out more about digital twins from a development perspective, to investigate how the capacity of a product tested and developed in combination with digital and real environment appears. What kind of data is there to read, and in what cases is there a potential for a digital twin? To achieve the desired results, a tablet machine has been created in CAD. The threedimensional model shows how a digital twin can be used for production facilities (specific process- and manufacturing industry) by mounting sensors on the three-dimensional model, which should also be mounted equally on a physical counterpart. During the project's implementation, Gartner's hype curve is also examined and thus what is hype and not hype. At the end of the report there is a discussion including e.g. what is possible to simulate with digital twins and what is not. The conclusion regarding whether a digital twin is a hype or not, results in digital twins being a tool that becomes what it is created for. Is a digital twin considered a hype, well then maybe it is actually the expectations that are overestimated, and not the digital twin itself.
90

Automotive IVHM: Towards Intelligent Personalised Systems Healthcare

Campean, Felician, Neagu, Daniel, Doikin, Aleksandr, Soleimani, Morteza, Byrne, Thomas J., Sherratt, A. 22 February 2019 (has links)
Yes / Underpinned by a contemporary view of automotive systems as cyber-physical systems, characterised by progressively open architectures increasingly defined by their interaction with the users and the smart environment, this paper provides a critical and up-to-date review of automotive Integrated Vehicle Health Management (IVHM) systems. The paper discusses the challenges with prognostics and intelligent health management of automotive systems, and proposes a high-level framework, referred to as the Automotive Healthcare Analytic Factory, to systematically collect and process heterogeneous data from across the product lifecycle, towards actionable insight for personalised healthcare of systems. / Jaguar Land Rover funded research “Intelligent Personalised Powertrain Healthcare” 2016-2019

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