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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.
1

Product development with a focus on integration of environmental aspects

Tingström, Johan January 2007 (has links)
Environmental awareness has increased during the past 2-3 decades, and companies have gone from simply following legislation to adding environmental considerations into their business plans. The ongoing developments make it interesting to study how leading companies integrate environmental considerations into their product development processes. The aim of this thesis is to study how environmental considerations can be integrated into the product development process. It is based on studies made in the Swedish manufacturing industry. The research has used both quantitative and qualitative methods. The foundation for the conclusion was derived from the four different studies building this thesis. The aggregated conclusion from the studies suggests a conceptual model consisting of four cornerstones that should be addressed in order to ease the integration of environmental concerns: the management, product development process, DfE Mindset, and DfE Tools. The development of this model has its foundation in industrial case studies that show how leading companies have integrated environmental considerations in an innovative way. Combined with the conceptual model is a discussion concerning the usage of existing tools and how sub-activities carried out within the development process are less formal than before. This non-rigid structure is in line with what is suggested in current innovation research for radical innovation, since it enables creativity to flourish and does not limit designers. This freedom of action for the creativity of the personnel in the projects has raised the environmental work to a new level. The thesis also suggests how to use analytical and dialogue-based tools in a development project. It is beneficial to have a dialogue tool in the beginning of a project and in a radical innovation project, while it is beneficial to have an analytical tool later on in a project if more that one tool is used or in an incremental innovation project. / QC 20100820.
2

Assessing design strategies for improved life cycle environmental performance of vehicles

Poulikidou, Sofia January 2016 (has links)
Vehicle manufactures have adopted different strategies for improving the environmental performance of their fleet including lightweight design and alternative drivetrains such as EVs. Both strategies reduce energy during use but may result in a relative increase of the impact during other stages. To address this, a lifecycle approach is needed when vehicle design strategies are developed. The thesis explores the extent that such a lifecycle approach is adopted today and assesses the potential of these strategies to reduce the lifecycle impact of vehicles. Moreover it aims to contribute to method development for lifecycle considerations during product development and material selection. Current practices were explored in an empirical study with four vehicle manufacturers. The availability of tools for identifying, monitoring and assessing design strategies was explored in a literature review. The results of the empirical study showed that environmental considerations during product development often lack a lifecycle perspective. Regarding the use of tools a limited number of such tools were utilized systematically by the studied companies despite the numerous tools available in literature. The influence of new design strategies on the lifecycle environmental performance of vehicles was assessed in three case studies; two looking into lightweight design and one at EVs. Both strategies resulted in energy and GHG emissions savings though the impact during manufacturing increases due to the advanced materials used. Assumptions relating to the operating conditions of the vehicle e.g. lifetime distance or for EVs the carbon intensity of the energy mix, influence the level of this tradeoff. Despite its low share in terms of environmental impact EOL is important in the overall performance of vehicles. The thesis contributed to method development by suggesting a systematic approach for material selection. The approach combines material and environmental analysis tools thus increases the possibilities for lifecycle improvements while minimizing risk for sub-optimizations. / <p>QC 20160920</p>
3

Integration of Design for Environment in the vehicle manufacturing industry in Sweden : Focus on practices and tools

Poulikidou, Sofia January 2013 (has links)
Design for Environment (DfE) promotes the systematic consideration of environmental aspects during product design and development. Despite the maturity of concepts and tools in literature, efficient implementation in industries is reported to be low. A need to bridge this gap is identified with studies that look on DfE practices as well as the use and potential of DfE tools. This thesis is part of a research project that investigates DfE practices and the use of tools during vehicle design and development. The aim is to investigate the ways that environmental constraints can be efficiently integrated into product development processes thus assist in improving the environmental performance of products from a life cycle perspective. The scope of the study includes four vehicle manufacturing companies in Sweden. The development and utilization of tools has been also investigated aiming to increase the opportunities for effective use within this product category. Case study methodology, research interviews and literature reviews constitute the research strategy followed in this work. The empirical results presented in this thesis indicated that vehicle manufacturing companies in Sweden are continually working to improve the environmental performance of their products and meet legal and costumer demands. Despite similarities regarding the type of environmental requirements considered, the companies studied have adopted different ways to identify and integrate environmental requirements into their product development process and use DfE tools to different extents. Such variations reflect differences in the success and maturity levels of the DfE practices adopted. A need for increased and more systematic use of tools is identified for all studied companies and especially for analytical tools. Results from the literature review showed that a variety of tools are available that have the potential to support vehicle design processes. However, only a few cover a broad set of aspects identified to be relevant from a vehicle design perspective. For DfE tools to become effective and be used during product development, they need to cover aspects that are relevant for the company and product designers. A need towards the development of tools that assist vehicle or product designers in general, to make informed and comprehensive choices based on a variety of requirements associated to the product, is identified. / Coupling Materials Environmental Analysis - Environmental Effects

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