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VorwortStelzer, Ralph 25 September 2017 (has links)
No description available.
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Grundlagen zur methodischen Beurteilung der montagegerechten Produktgestaltung anhand virtueller WerkzeugeKneschke, Christoph, Schmauder, Martin January 2012 (has links)
No description available.
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Additive manufacturing of spare parts for the mining industry a pilot study on business impact from an aftermarket perspective.Vingerhagen, Kristian, Alfredsson, Julia January 2021 (has links)
The purpose of this pilot study was to identify and evaluate different business cases for Epiroc’s Parts & Services Division (PSD) regarding the use of additive manufacturing (AM), also known as 3D printing, for their spare parts within the mining industry. This study presents an approach for how spare parts promising for AM can be identified and shows the difficulties with AM. The study follows the design research methodology (DRM) standard for research within product and process development. Through interviews and literature searches, a "top-down" approach was applied. A developed cost-benefit model accompanied this approach and was used to identify and evaluate potential spare parts for AM from Epiroc’s current spare parts portfolio. The results were evaluated as promising for several of the spare parts in terms of reduced manufacturing, procurement, tool cost, and lead time reduction, which results in increased uptime for the customer. With reduced lead times, the availability increases for the customer, who may increase Epiroc’s sales and aftermarket revenues in the long run. There is also great potential for reducing the costs for warehousing, where spare parts of low demand can have their stocks reduced or eliminated by securing supply through on-demand manufacturing. Although many exciting business cases have been identified and evaluated, it has been acknowledged that CNC-machining in many cases is the cheaper alternative. Despite this, it is worth investing in AM from a strategic point of view as it is seen as a tool for the future. Before it can be adopted and implemented, Epiroc should do test trials with companies offering AM services. These can be used to update and tune the cost-benefit model accordingly to increase its reliability and validity. The model could also be developed further to incorporate AM’s additional benefits, such as weight and material reduction through design for additive manufacturing (DfAM). / Syftet med denna förstudie var att identifiera och utvärdera olika affärsmöjligheter för Epirocs Parts & Services-division (PSD) gällande användningen av additiv tillverkning (AM), även känd som 3D-printning, för deras reservdelar inom gruvindustrin. Denna studie presenterar ett tillvägagångssätt för hur reservdelar passande för AM kan identifieras och visar på svårigheterna med AM. Studien följer "design research methodology" (DRM), vilket kan översättas till designforsknings-metodologin, som är vanligt förekommande vid forskning inom produkt- och processutveckling. Genom intervjuer och litteratursökningar tillämpades en "top-down"-metod. Detta åtföljdes av en utvecklad kostnadsnyttomodell som tillsammans användes för att identifiera och utvärdera potentiella reservdelar för AM från Epirocs nuvarande reservdelsportfölj. Resultaten utvärderades som lovande för flertalet av reservdelarna vad gäller reducerad kostnad för tillverkning, inköp, verktyg och minskad ledtid, vilket resulterar i ökad drifttid för kunden. Med minskade ledtider ökar tillgängligheten för kunden, som kan öka Epirocs försäljning och eftermarknadsintäkter på lång sikt. Det finns också en stor potential i att minska kostnaderna för lagerhållning, där reservdelar med låg efterfrågan kan få sina lager att reduceras eller elimineras genom att säkra utbudet genom tillverkning vid behov. Även om många intressanta affärsmöjligheter har identifierats och utvärderats har det uppmärksammats att CNC-bearbetning i många fall kan vara det billigare alternativet. Trots detta är det värt att investera i AM ur en strategisk synvinkel eftersom det ses som ett verktyg för framtiden. Innan AM kan anammas och implementeras bör Epiroc göra testförsök med företag som erbjuder AM-tjänster. Dessa kan användas för att uppdatera och justera kostnadsnyttomodellen i enlighet med detta för att öka dess validitet och reliabilitet. Modellen kan också utvecklas vidare för att införliva AM:s ytterligare fördelar, såsom vikt- och materialreduktion genom design för additiv tillverkning (DfAM).
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Development of a Performance Management System Artifact Based on Business Intelligence for SMEs: A Design Science Research Methodology ApproachSeifollahi, Mohammadreza 03 October 2022 (has links)
Although interest in Performance Measurement and Management Systems (PMMS) and their application in various organizations has grown substantially, they are mainly developed for larger companies, and practitioners find it challenging to implement these systems in Small and Medium-sized Enterprises (SMEs). SME characteristics such as limited budget, lack of experience and knowledge, and pace of change usually make it difficult for managers to adopt and use traditional PMMS. One of the solutions to the lack of applicability of PMMS in the SME context is provided by integrating traditional PMMS with Business Intelligence (BI) and Business Analytics (BA) tools and technologies. The main goal of this thesis is to design and evaluate a Performance Management System based on Business Intelligence (PMS-BI) artifact that contains frameworks, architectures, tools and guidelines to help SMEs evaluate their current Performance Management System (PMS), select the most suitable PMS-BI system components, and design their own PMS based on BI. This artifact also guides them throughout the year by providing tools to assess their PMS-BI and maintain it. For this thesis, I applied a Design Science Research (DSR) methodology to collect the relevant information needed in the design step, design and develop the artifact, and evaluate it. I used the case study approach in the design's information collection and artifact evaluation phases. The final artifact consists of an executive document that guides the SME managers to design their own PMS-BI and helps them have a perception of its efficiency. In the data collection phase, I systematically reviewed the relevant literature to understand best practices, then interviewed eleven participants from seven SMEs to find out the gaps and requirements regarding PMS in SMEs. These participants are directly responsible for the PMS in their organization. Then by combining this information, I extracted the PMS-BI features. In the creative process of system design, I used these features to develop the artifact. Then, I presented the results to the same participants in the form of an executive summary. Finally, I used a “usability questionnaire” to understand participants' opinions about the artifact and document their feedback. My research fills the gap in the application of DSR in the PMS artifact development. This thesis helps researchers understand the application of DSR in designing and developing PMS artifacts for SMEs. In addition, the final artifact can be used by SMEs to develop and apply their own PMS-BI.
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Psychosocial inclusivity in design : a definition and dimensionsLim, Yonghun January 2018 (has links)
Significant changes in demographics, including a growing ageing population and a larger number of people with disabilities, have made inclusive design an increasingly relevant notion in the design of products, services, and environments. However, there is considerable concern that the concept of inclusive design is rather limited in its current definition and applications and has not yet been thoroughly applied. This is possibly due to the conventional understanding and application of inclusive design, mainly rooted in and focused on physical aspects of inclusion, such as accessibility, usefulness, and usability. This limited focus has led various voices in design academia and industry to speak of the need for further consideration of the psychological and social aspects of inclusive design as the next step to facilitate inclusive design, and make impact. In this research, inclusivity on psychological and social levels, is referred to as "psychosocial inclusivity". The concept of psychosocial inclusivity, including a clear definition thereof and its application, is rather limited in the existing literature. Therefore, this PhD research aims to further explore this concept by establishing a clear definition and the dimensions thereof. In order to achieve this, an initial definition and dimensions of the psychosocial inclusivity in design are established through a critical review of existing literature from both social science and design perspectives. The initial definition and dimensions are then developed, refined, and evaluated through four empirical studies: the Delphi study (expert survey); field study I (ethnographic interviews with mobility scheme users); field study II (ethnographic interviews, creative workshop, and observation of older individuals); and an evaluation study (online survey of design academics and professionals). These studies have been designed based on a triangulation approach in order to enhance the reliability and validity of the outcomes. At the end of this research, the definition and dimensions for psychosocial inclusivity in design (Cognitive, Emotional, Social, and Value dimensions) are proposed. The outcomes of this research can enhance the understanding and knowledge of the concept of psychosocial inclusivity in design. Also, the definition and dimensions can be used by design academics and professionals or third parties to consider psychosocial aspects. The dimensions also can be developed as a complete set of framework or toolkit through further research.
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The influence of designers' cultural preferences on product conceptsRazzaghi, Mohammad, Built Environment, Faculty of Built Environment, UNSW January 2007 (has links)
Products are designed to satisfy user needs. Thus, industrial designers are expected to have a thorough understanding of user needs and to incorporate those understandings into the design of products; however, it is not a straightforward task for designers to translate their conditional understanding into a product. The gap between product and user can be even wider when latent user needs, such as cultural ones, are calculated into the problem. Therefore the meanings and functions imbued in products by the designer may not be recognized and acknowledged by users, due to the differences in cultural preferences of designers and users from separate cultures. In spite of the fact that user satisfaction has been extensively supported in the design literature, it seems that such an approach allows only a passive role for designers, who actually act as cultural intermediaries; that is, the designers' role is merely presumed to catalyze the process and match user requirements to the end product. Thus, the impact of designers' cultural preferences is considered as incidental, or at least overlooked. A content analysis method was triangulated to collect and analyze diverse visual and textual data relating to the concept generation stage of the product development process. To collect data, professional industrial designers in the two culturally diverse countries of Australia and Iran were recruited to participate in half-hour design exercise sessions to sketch to a design brief, followed by responding to an interview questionnaire. The analysis of data revealed that: (1) designers' cultural preferences do influence their approaches toward tackling the design problem; (2) there are nexuses between the design aspects of the concepts generated and the cultural dimensions of the values of the societies in which the designers were born and has lived, and; (3)potential users can unconsciously comprehend the meaning invested in the product by the designer. This thesis breaks new ground for further advancing the study of the Designer-Precedent Approach (DPA) in other cultural and social contexts, while it challenges the conventional approaches of user-centered design (UCD) broadlyperceived as the ultimate method of incorporating users' wants into products.
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The influence of designers' cultural preferences on product conceptsRazzaghi, Mohammad, Built Environment, Faculty of Built Environment, UNSW January 2007 (has links)
Products are designed to satisfy user needs. Thus, industrial designers are expected to have a thorough understanding of user needs and to incorporate those understandings into the design of products; however, it is not a straightforward task for designers to translate their conditional understanding into a product. The gap between product and user can be even wider when latent user needs, such as cultural ones, are calculated into the problem. Therefore the meanings and functions imbued in products by the designer may not be recognized and acknowledged by users, due to the differences in cultural preferences of designers and users from separate cultures. In spite of the fact that user satisfaction has been extensively supported in the design literature, it seems that such an approach allows only a passive role for designers, who actually act as cultural intermediaries; that is, the designers' role is merely presumed to catalyze the process and match user requirements to the end product. Thus, the impact of designers' cultural preferences is considered as incidental, or at least overlooked. A content analysis method was triangulated to collect and analyze diverse visual and textual data relating to the concept generation stage of the product development process. To collect data, professional industrial designers in the two culturally diverse countries of Australia and Iran were recruited to participate in half-hour design exercise sessions to sketch to a design brief, followed by responding to an interview questionnaire. The analysis of data revealed that: (1) designers' cultural preferences do influence their approaches toward tackling the design problem; (2) there are nexuses between the design aspects of the concepts generated and the cultural dimensions of the values of the societies in which the designers were born and has lived, and; (3)potential users can unconsciously comprehend the meaning invested in the product by the designer. This thesis breaks new ground for further advancing the study of the Designer-Precedent Approach (DPA) in other cultural and social contexts, while it challenges the conventional approaches of user-centered design (UCD) broadlyperceived as the ultimate method of incorporating users' wants into products.
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The Quest for the Hydroponic Pepper : Applying Design Research Methodology to Develop Support Tools for Successfully Designing a Post-harvest System for a Plant FactoryAntser, Charlie, Lundvall, Kimmy January 2021 (has links)
The world is facing a food shortage as the world’s population increases and arable land decreases. Despite this, the food industry is wasteful, and 30% - 40% of all produced food is lost before reaching the end consumer. Emerging technologies aim to increase the amount of food that can be grown per m2 or allow the growing of food in climates or on lands previously impossible. Four main farming techniques utilising these emerging technologies are Controlled Environment Agriculture, Hydroponic Farming, Urban Farming and Vertical farming. When used together, these techniques form the basis for what can be called a Plant Factory. Despite the positive effects these technologies have on the production rate, few Plant Factories have managed to achieve profitability. By creating support for developing the post-harvesting system for a plant factory, this thesis aims to aid in the development of profitable plant factories. The thesis uses Design Research Methodology to achieve this aim in three parts. The first part identifies the underlying factors of the post-harvesting system affecting plant factory profitability. The second presents a set of support components that will aid the developers to improve key factors affecting profitability. The third part is a case study where the support components applicability at targeting the key factors are evaluated, and suggestions for further improvements and testing of the support is suggested. Further, using Design Research Methodology, the methods used to develop support in this thesis are presented to easily be replicated by other researchers to aid them in developing support for other industries and circumstances. The suitability of the developed support was tested using the principles of an initial DS-II. The developed support proved very useful for the investigated case, and with its conditions, the application evaluation was considered a partial success. Two key factors were successfully improved and indicated that the intended support is ready for a comprehensive DS-II. A third support component needs more work to provide the intended support fully. Therefore a second PS iteration is recommended before a comprehensive DS-II is done to increase its value.
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Simulace a návrh inteligentních agentů / Simulation and Design of Intelligent AgentsŠperka, Svatopluk Unknown Date (has links)
Conventional method of development which repeats phases of design, implementation and testing is not adequate for systems like intelligent agents for which complex behavior is required but specification is unclear at the beginning of development process. Incremental design of agent's model during simulation seems more suitable for it enables direct feedback in behavioral changes of a system. This interactivity speeds up development process and helps to uncover parts of a space of all models to designer - thanks to new knowledge acquired during simulation. This thesis aims to provide comparison of suitability of two agent architectures and respective platforms in context of SmallDEVS modeling and simulation framework for this methodology of development. First approach is reactive and decentralized subsumption architecture based on DEVS formalism and the second one is PNagent, framework realizing deliberative BDI architecture using Object Oriented Petri Nets.
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Digital Twin-Based Simulation Model for Electricity Usage Optimization for E-Buses Using Z Notation: Case of Arlanda AirportThalpe Guruge, Induni Udayangi January 2024 (has links)
The development of Digital Twin Technology, with a focus on addressing environmental concerns, has elevated the priority of Industry 4.0-based solutions. The study aimed to design a simulation model to optimize the electricity consumption of the electric bus fleet at Arlanda Airport as a subproject of the main Digital Twin project. The study found that there was no current model designed to simulate electricity consumption by formal methods, Z notation. The research is guided by four primary objectives find power management strategies for e-buses, identify critical parameters affecting their energy consumption, create a Z Notation simulation model, and assess this model. Through a thorough review of the literature and methodical application, power management strategies were defined, and significant energy consumption parameters were identified. The model's usefulness in modelling and optimizing electricity usage was demonstrated by its careful construction using Z Notation and evaluation with Spivey's Fuzz Checker. The paper demonstrates the use of Design Science Research in creating a digital twin-based simulation, which has important implications for transportation systems as well as theoretical advances in simulation methodologies. Throughout the developed Z notations, it provide a proper insight into operational efficiency and sustainability in energy consumption. The study also emphasizes the drawbacks of using Z Notation, such as its steep learning curve and limited community assistance. To improve the accuracy of electricity consumption forecasts, future research should use predictive analytics and fine-tune the model granularity. The thesis demonstrates how design science can be applied for preparing specification of services but not only in software development. This work lays the groundwork for more extensive applications in digital twin technologies and energy optimization, in addition to contributing to our understanding of e-bus power management at Arlanda Airport.
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